JP2002341894A - Data reproducing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously play back desired audio files without spoiling operability. SOLUTION: A CPU 15 groups a plurality of audio files stored in a memory card 18 by making an arbitrary audio file as a key according to the operation of the operating switch of an operating switch group 26, and stores the data in the memory card 18 as a link data file. When the reproduction of the arbitrary audio file is instructed, the grouped audio files are controlled to be successively played back by referring to the link data file.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a data reproducing apparatus capable of reproducing an audio file.

[0002]

2. Description of the Related Art Hitherto, as a data reproducing apparatus capable of reproducing an audio file, a CD player or an M player having a program reproducing function of designating a music order and reproducing the music file has been known.
D players are known.

If such a program reproducing function is used, for example, when an audio file A is reproduced, an audio file A0 (for example, a file containing narration and sound effects) is simultaneously reproduced continuously. Continuous reproduction of a plurality of audio files in an arbitrary order can be realized.

[0004]

In such a program reproducing function, for example, when an audio file is to be reproduced in the order of A0 and A, it is necessary to search for A0 and start reproduction from there. However, if it is desired to use the audio file A0 before the audio file B (such as when the song order is A0, A, A0, B, etc.), even if the audio file A0 is searched, It is necessary to check whether the audio file A is reproduced or the audio file B is reproduced, and the operability is impaired.

If an appropriate name is given to the audio file A0, it is necessary to search for the audio file A, reverse the file, and start reproduction. Also, the operability is poor.

[0006] The present invention has been made in view of the above points, and has as its object to provide a data reproducing apparatus capable of continuously reproducing a desired audio file without impairing operability.

[0007]

In order to achieve the above object, a data reproducing apparatus according to the present invention comprises: a grouping means for grouping a plurality of audio files by using an arbitrary audio file as a key; And a control means for controlling to sequentially reproduce the plurality of grouped audio files when the reproduction of the audio file is instructed.

That is, according to the data reproducing apparatus of the present invention,
By grouping means, multiple audio files are grouped using any audio file as a key,
When the reproduction of the arbitrary audio file is instructed, the control means controls to sequentially reproduce a plurality of audio files grouped by using the audio file as a key.

Therefore, it is possible to continuously reproduce a desired audio file without impairing operability.

The grouping means has a reproduction order information storage means for storing reproduction order information of the plurality of audio files with reference to the arbitrary audio file at the time of the grouping. Controls the reproduction of the grouped arbitrary key audio files and other audio files based on the reproduction order information stored in the reproduction order information storage means.

In this case, the erasing means for erasing an arbitrary audio file and, when the audio file is erased by the erasing means, the reproduction order information including the information of the erased audio file is stored in the reproduction order information storage means. It is preferable to further include a reproduction order information deletion unit for deleting information.

[0012] In the plurality of grouped audio files, an arbitrary audio file serving as the key and an audio file other than the key include:
Different coding schemes may be used.

Further, the data reproducing apparatus according to the present invention, for the two selected audio files, creates a first audio file serving as a key, and the first audio file and the other second audio file. Linking means for creating link information including a relative reproduction order; and when the reproduction of the first audio file is instructed, the first audio file and the second audio file are reproduced based on the link information. And control means for controlling the reproduction of the audio file.

That is, according to the data reproducing apparatus of the present invention,
Linking means for the selected two audio files, a first audio file serving as a key, and a relative reproduction order of the first audio file and the other second audio file. When the reproduction of the first audio file is instructed, the control means reproduces the first audio file and the second audio file based on the link information. Control.

Therefore, it is possible to continuously reproduce a desired audio file without impairing operability.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an audio recording / reproducing apparatus to which an embodiment of the data reproducing apparatus of the present invention is applied.

First, each block will be described in the present audio recording / reproducing apparatus in accordance with a signal flow when audio is recorded.

That is, this audio recording / reproducing apparatus has a microphone 11 for converting audio into an electric signal, and a line input terminal 1 for inputting an audio signal from an external device such as an external microphone (not shown).
And 2. The input switch (SW) 13 selects which of these is to be used. The input changeover switch 13 is configured to select the line input terminal 12 when the terminal connected to the external device is connected to the line input terminal 12, and to select the microphone 11 in other cases. . In the present embodiment, the microphone 11 and the line input terminal 12
Are input with one monaural audio channel.

The audio signal selected by the input switch 13 is input to a preamplifier 14 and amplified. The control of the amplification factor or power supply of the preamplifier 14 is controlled by a control circuit (CPU) 15 that controls the entire operation of the audio recording and reproducing apparatus.

The audio signal amplified by the preamplifier 14 is input to an input amplifier 16A of a stereo codec 16 for converting a signal between an audio signal and a digital signal. A / D converters (R) 16B-R and A / D convert the audio signal, which is an analog signal, into a digital signal after the audio signal is amplified again by the input amplifier 16A.
/ D converter (L) 16B-L. The A / D converters 16B-R, 16B
At -L, the audio signal is converted to a digital audio signal and input to the digital filter 16C.

Since the stereo codec 16 itself supports conversion of a stereo signal from an analog signal to a digital signal and conversion of a digital signal into an analog signal, the A / D converter is also used for the right and left channels. 16B-R and 16B-L are provided, but the microphone 11 or the line input terminal 12
Is a monaural input, and therefore, as described above, one input signal is supplied to the A / D converters 16B-R and 16B
-L.

The digital filter 16C performs a process of removing unnecessary quantization noise called aliasing noise generated when the above-mentioned audio signal is converted into a digital audio signal from the digital audio signal. The digital audio signal from which the quantization noise has been removed is converted into a digital signal processing unit (hereinafter abbreviated as DSP) 1.
7 is transferred.

Under the control of the CPU 15, the DSP 17 encodes (compresses and converts) the input digital audio signal on a frame-by-frame basis according to a predetermined format to generate encoded data. In this audio recording / reproducing apparatus, Digital Speech Standard (hereinafter abbreviated as DSS) is used.
Is used.

The coded data thus generated is transferred to a memory card 18 as coded data recording means under the control of the CPU 15, and is sequentially written at a predetermined address. The memory card 18 is formed of a semiconductor memory such as a flash memory in a card shape detachable from the audio recording / reproducing apparatus main body. Specifically, there is Smart Media (registered trademark) or the like, and this audio recording / reproducing apparatus uses this.

The encoded data written in the memory card 18 is handled as a file as one unit (the encoded data file encoded by the DSS method is hereinafter referred to as a DSS file). . In addition, since audio is recorded in the audio recording / reproducing apparatus in monaural, the A / D converter (R) 16B
Only the encoded data of the digital audio signal output from the -R side is recorded on the memory card 18.

Next, the function and the like of each block will be described along the flow of signals when the encoded data recorded on the memory card 18 is reproduced.

First, from the memory card 18, the DSP
The coded data is sequentially transferred to 17. The encoded data transferred to the DSP 17 is decoded (expanded and converted) into digital audio data in predetermined frame units under the control of the CPU 15. The memory card 18 has
As described later in detail, encoded data other than the DSS file can be recorded. Therefore, in DSP17,
It determines which coding system is used for the coded data sent from the memory card 18, and decodes the coded data according to the coding system. In the present embodiment, the audio recording / reproducing apparatus is a Windows Media (registered trademark) system of Microsoft Corporation (registered trademark) (hereinafter referred to as WMA system, and its encoded data file is referred to as WMA file), Motion. Picture Exper
It is assumed that three decodings of the ts Groupe-1 Audio Layer 3 method (hereinafter, referred to as MP3 method, and the encoded data file is referred to as MP3 file) and the DSS method can be performed. The digital audio signal decoded by the DSP 17 is transferred to the stereo codec 16.

From the transferred digital audio signal, unnecessary quantization noise is removed in the digital filter 16C in the stereo codec 16. After that, the D / A converter (R) 16D-R for each of the left and right channels,
And a D / A converter (L) 16D-L converts a digital audio signal into an analog audio signal,
Output amplifier (R) 16E-R and output amplifier (L) 16
The signal is amplified by E-L and the stereo codec 1
6 is output. If the original encoded data is monaural data, the same signal is input to both the left and right channels, processed, and then output.

The output destination of the audio signal of each of the left and right channels output from the stereo codec 16 is switched by an output changeover switch (R) 19-R and an output changeover switch (L) 19-L interlocked with each other. Can be
A headphone terminal (R) 20-R and a headphone terminal (L) 20-L for connecting an external headphone or the like and reproducing the audio signal using an external reproducing device are connected to the output destination of the audio signal.
And a speaker 21 provided in the audio recording / reproducing apparatus main body.
And two are prepared.

Here, the output changeover switches 19-R,
When 19-L is switched to 19-Ra and 19-La, respectively, the headphone terminal (R) is used as an output destination.
20-R and the headphone terminal (L) 20-L are selected, and the headphone amplifiers (R) 22-R and the headphone amplifiers (L) 22-L select the headphone terminals 20-R and 20-L.
The audio signal is amplified with an amplification factor that matches the output from L,
Output for each of the left and right channels.

On the other hand, the output changeover switches 19-R, 1
When 9-L is switched to 19-Rb and 19-Lb, respectively, the speaker 21 is selected as the output destination. Since only one speaker 21 is built into the main body, the audio signal is amplified by the speaker amplifier 23 with an appropriate amplification factor and output from the speaker 21 after synthesizing the signals of the left and right channels. .

The CPU 15 is connected to several circuits and the like in addition to those described above.

That is, the display section 24 is composed of a two-color LED and a liquid crystal display having a backlight, and displays the operation state of the audio recording / reproducing apparatus. The display drive circuit 25 drives the display unit 24 under the control of the CPU 15.

Although not shown, the operation switch group 26 is provided on the exterior of the audio recording / reproducing apparatus, and includes a plurality of operation switches for controlling various functions. Here, a microphone switch (MICS) is used as the operation switch.
W) 26A, voice activated recording switch (VCVASW) 2
6B, a hold switch (HOLDSW) 26C, a recording switch (RECSW) 26D, and a reproduction switch (PLA).
YSW) 26E, stop switch (STOPSW) 26
F, fast forward switch (FFSW) 26G, fast reverse switch (REWSW) 26H, menu switch (MENUS)
W) 26I, erase switch (ERASESW) 26J,
And a folder switch (FLSW) 26K.

The MICSW 26A is connected to the microphone 11
This is a switch for instructing the switching of the sensitivity. Also,
The VCVASW 26B instructs whether or not to perform voice-activated recording, in which recording is automatically started when a voice louder than the set sensitivity is detected, and recording is automatically paused when the voice becomes lower than the sensitivity. Switch. The HOLDSW 26C is a switch for instructing to invalidate the operation of each switch and to maintain the current state.

The RECSW 26D is a switch for instructing the start of recording, and the PLAYSW 26E
Is a switch for instructing the start of reproduction of the recorded voice. The STOPSW 26F is a switch for instructing the stop of the recording or reproduction. The FFSW 26G is a switch for instructing a file skip or the like.
Is a switch for instructing reverse skip of a file or the like. The MENU SW 26I is a switch for calling a setting item when performing various settings. E
The ASESW 26J is a switch for giving a file deletion instruction. The FLSW 26K is a switch for designating a folder in which recording or reproduction is to be performed since a plurality of folders are configured in the memory card 18 as described later.

The power supply circuit 27 is a circuit for supplying electric power for driving the audio recording / reproducing apparatus. Includes circuits related to power control such as circuits.

The built-in memory 28 is composed of an EEPROM which is a rewritable nonvolatile memory built in the main body, and has a user ID, a selection setting of a recording mode (standard mode / long time mode), and a BEEP sound (ON / OFF). Various settings, parameters, and the like that are desired to be recorded even when power is not supplied to the CPU 15, such as selection settings, data reproduction positions, and the like.

The audio recording / reproducing apparatus can be connected to an external device such as a personal computer (PC). That is, the audio recording / reproducing apparatus is connected to an external device and performs bidirectional communication to transfer, for example, an encoded data file recorded on a hard disk of a PC to the memory card 18 or vice versa. The encoded data file recorded on the memory card 18
Transfer to the recording medium on the C side, or use the microphone 1
Various other processes such as converting the audio signal input from 1 into a digital signal by the stereo codec 16 and recording the encoded data encoded by the DSP 17 directly on the recording medium on the PC side are also performed. Will be able to do it. For communication with external devices such as the PC mentioned above,
This audio recording / reproducing apparatus is configured to be connected via an interface called Universal Serial Bus (hereinafter referred to as USB). That is, the USB connection terminal 29 is a connection terminal for connecting to a USB cable, is controlled by the USB driver 30, and is connected to the CPU 15 via the internal bus.

Here, the operation mode of the audio recording / reproducing apparatus will be described. The audio recording / reproducing apparatus has two operation modes. One is a first mode (hereinafter, referred to as a recorder mode) in which sound input from the microphone 11 or the line input terminal 12 can be recorded and reproduced, and the other is a recording operation. This is a second mode (hereinafter referred to as a player mode) specialized in reproducing encoded data files recorded on the memory card 18 as a recording medium. In the present audio recording / reproducing apparatus, in the recorder mode, it is assumed that the recording mode is mainly used for message memos, dictations, conference recordings, etc., and the encoding scheme is a DSS scheme which has high compression and is suitable for long-time recording. On the other hand, in the player mode, it is assumed that the user mainly listens to music, and WMA and MP3 encoding that can reproduce high-quality sound is used.

The volume controller 31 is used for adjusting the reproduction volume and setting the sensitivity in the above-mentioned voice-activated recording.

Next, how data is recorded in the memory card 18 used in the present audio recording / reproducing apparatus will be described with reference to FIG.

In the root directory of the memory card 18, an encoded data file 41, a reproduction order data file 42, and a link data file 43 are recorded.

Here, the encoded data file 41
Is a file having the extension “mp3” or “wma”. The extension “mp3” or “wma” indicates that the encoded data file is music data encoded by the MP3 method or the WMA method. Such an encoded data file 41
Is a file that can be reproduced in the player mode described above.

The reproduction order data file 42 is
This is a file having, as table data, the order of reproduction of a plurality of encoded data files 41 that can be reproduced in the player mode described above. If it is desired to change the reproduction order of the encoded data file 41 in the player mode, the reproduction order data file 42 may be rewritten under the control of the CPU 15.

The link data file 43
The table includes a link source file and a link destination file specified by the user as described in detail below, and information indicating whether the linked file is to be played before or after the linked file. This is a file held as data. Thereby, the CPU 1
5 reproduces the encoded data file 41 in accordance with the contents of the reproduction order data file 42 and refers to the contents of the link data file 43 to link the encoded data file 41 to be reproduced to the link source. If there is a link destination file to be a file, it is possible to control to reproduce the link destination file before or after the encoded data file 41 in accordance with the designation.

The memory card 18 has a DSS
A plurality of sub folders such as file folders 44, 45, 46 and a system folder 47 are provided.

Here, the DSS file folder 4
4, 45, and 46 are folders for storing a plurality of DSS files, respectively. In the recorder mode, three folders A, B and C are provided for organizing DSS files, and DSS file folders 44, 45 and 46 correspond to these folders A, B and C.

These DSS file folders 44 and 4
DSS files 48A, 48B stored in 5, 46,
48C is a file that can be played back in the recorder mode.
A DSS file is created in any of 4, 45 and 46.

The order of reproduction of the DSS files is determined for each folder, as in the case of the reproduction order data file 42 of the root directory.
9B and 49C are recorded as table data.
In consideration of the display capability of the display unit 24 or the usability of the operator, the number of recordable files per folder is set to 199 in the audio recording / reproducing apparatus of the present embodiment, and is set to 597 in total.

Also, these DSS file folders 4
4, 45, and 46, like the link data file 43 in the root directory, respectively, a link source file and a link destination file, and whether the link destination file is reproduced before or after the link source file. And link data files 50A, 50B, and 50C having information indicating the following as table data. In this case, the link data file 50A stores the DS
The DSS file 48A in the S file folder 44 stores data that becomes a link source file,
Similarly, the link data file 50B stores the DSS file 48B in the DSS file folder 45, and the link data file 50C stores the DSS file 48C in the DSS file folder 46 as the link source file. Is what is done.

The DSS file folder 4
4, a folder name data file 51 and a recovery data file 52 are recorded in addition to the above-mentioned files. In this audio recording / reproducing apparatus, the above-mentioned folder A,
B and C can change the folder display name on the display unit 24 to an arbitrary display name.
The folder name data file 51 has its display name and D
Data for associating with the SS file folders 44, 45, and 46 is recorded. The recovery data file 52 is a file in which data for performing recovery when data in the DSS file folders 44, 45, and 46 is destroyed for some reason.

The system folder 47 is a folder for storing the codec files 53 and 54 of the encoded data file 41 reproduced in the player mode. The first three characters of the file names of the codec files 53 and 54 use the extension of the corresponding encoded data file. In addition, these codec files 5
“Img” is used as the extension of 3,54.

FIG. 2B is a diagram showing an example of table data stored in the link data file 43.

In this example, the link source file “tuli”
p. wma "and two linked files" olym00
45. dss "and" olym0022.dss "are specified," olym0045.dss "is specified as a link on the front side, and" olym0022.dss "is specified as a link on the rear side. Therefore, before playing “tulip.wma”, play “olim0045.dss”
After playing “tulip.wma”, “olym002
2. dss ”.

Even when the reproduction is performed by designating “olym0045.dss” (selecting folder B (DSS file folder 45)), “olym0045.dss” is selected.
Is selected and the playback is performed), “tulip.wm
"a" is not subsequently reproduced. When such a thing is desired, “olim0045.ds” is included in the link data file 50B of the folder B (DSS file folder 45) as a link source file.
s ”and“ tulip.wm ”as the link destination file.
There must be information "a" and "1" as the link position. Here, the link position "1" represents a link on the rear side, and "0" represents a link on the front side.

FIG. 3A is a view showing a display on the liquid crystal display 240 of the display unit 24, in which all display elements are turned on. It is what is displayed. That is, the liquid crystal display 240 displays a remaining battery level display 241, a folder display 242, a link display 243, a recording mode 244, a rewrite inhibition display 245, a file number display section 246, a first character string display section 247, and a second character string. A display element such as a display unit 248 is provided.

FIG. 4A is a diagram showing a main flowchart of the present audio recording / reproducing apparatus.

That is, the operation starts when power is supplied to the circuit by loading a battery or the like.
Initial settings such as various parameter settings and hardware reset are performed (step S11). Subsequently, the current time is set (step S12). The setting of the current time is performed by raising and lowering the numerical value by using the FFSW 26G and the REWSW 26H, and determining the numerical value by the PLAYSW 26E. Here, if the STOPSW 26F is pressed, the operation for setting the current time can be canceled.

After the initial setting and the time setting have been performed, it is next determined whether or not the memory card 18 is loaded in the main body of the audio recording / reproducing apparatus (step S).
13). In this audio recording / reproducing apparatus, the memory card 1
When the device 8 is not loaded, normal operation cannot be performed. Therefore, when the memory card 18 is not loaded, it is further determined whether or not any operation switch is operated (step S14). If the operation SW is not operated, the process returns to the step S13. After a warning sound is emitted from the speaker 21 to notify the user that the operation cannot be performed (step S15), the process returns to step S13.

On the other hand, if the memory card 18 has been loaded, the loaded memory card 18
Is checked to determine whether the memory card 18 is usable (step S16). Here, when it is determined that the memory card 18 is unusable due to damage or unformatted data, a message is displayed on the display unit 24, and a format process is requested to the user (step S17). After the user performs formatting processing or cancels the processing, the process returns to step S13.

If it is determined that a usable memory card 18 is loaded, the internal memory 28
The operation mode is determined in accordance with the information of the current folder recorded in step S1 (step S18).
9) Or, in the case of the player mode, the processing of the player mode is executed (step S20). If nothing is specified as the information on the current folder, the recorder mode is specified as an initial setting.

FIG. 5A shows a flowchart of the recorder mode executed in step S19. As described above, the recorder mode is a mode in which recording and playback can be performed by the present audio recording and playback apparatus, and uses the DSS scheme as the encoding scheme.

That is, first, the RECSW 26D is turned on.
It is determined whether or not it has been performed (step S31), and it is turned on.
If so, a recording process is executed (step S32).
In this recording process, the DSS file is recorded in the current folder according to the information of the current folder recorded in the internal memory 28. At this time, the file name of the recorded DSS file is added to the end of the table data of the reproduction order data file in the current folder.

When the RECSW 26D is not turned on, or after the end of the recording process, the PLAYSW 26D
It is determined whether or not 26E has been turned on (step S3).
3) If it is turned on, the PLAY process is executed (step S34). The PLAY process is for reproducing a file, and details thereof will be described later.

If the PLAYSW 26E is not turned on, or after the PLAY processing is completed, the FF
It is determined whether or not the SW 26G has been turned on (step S3).
5), if it is turned ON, skip forward (step S36). The order skip is a process of incrementing the file number by one in the current folder.

When the FFSW 26G is not turned on, or after the end of the forward skip, the REWSW 2
It is determined whether or not 6H is turned on (step S37),
If it is turned on, a reverse skip is performed (step S
38). This reverse skip means that in the current folder,
This is a process of decrementing the file number by one.

If the REWSW 26H is not turned on, or after the reverse skip is completed, the MENU
It is determined whether or not W26I has been turned on (step S3).
9) If it is turned on, the MENU is processed (step S40). The MENU process performs various settings, and details thereof will be described later.

When the MENU SW 26I is not turned on, or after the MENU processing is completed, the ER
It is determined whether or not the ASESW 26J has been turned on (step S41). If it has been turned on, an erasing process is performed (step S42). This erasing process is for erasing a file, the details of which will be described later.

When the ERASESW 26J is not turned on, or after the erasing process is completed, the STOP
It is determined whether or not the SW 26F has been turned on (step S4).
3) If it is turned on, the remaining memory is displayed (step S44). This indication of the remaining memory is
While the PSW 26F is ON, it indicates how much recording can be performed with the current settings.

If the STOPSW 26F is not turned on, or after the display of the remaining amount of memory, the internal clock (not shown) determines whether or not the alarm time set by the user has come (step S45). Here, when the alarm time comes, the alarm is reproduced (step S46). The alarm playback means that if a preset time has come, an alarm sound is output from the speaker 21 for a predetermined time, and if the user operates any operation switch during that time, the file selected in advance is played. It is a function that is done.

If the alarm time has not come, or after the end of the alarm reproduction, it is determined whether or not the USB terminal 29 is connected to a PC (not shown) (step S47). Here, if it is determined that the PC has been connected, the mode shifts to the communication mode (step S48). In this communication mode, it is possible to communicate with a PC and download audio files and data necessary for reproduction in the PC. During this time, the input of the operation switch group 26 becomes invalid. And if the connection with PC is cut off,
It returns from this communication mode.

If the PC is not connected to the PC, or if the communication mode is restored, the FLSW
It is determined whether or not 26K is turned on (step S4).
9) If it is turned on, the current folder is switched to the next folder (step S50). That is, the above F
Each time the LSW 26K is turned on, the folder is cyclically switched in the order of A → B → C → M (root) → A →. In the case of folders A, B and C, the operation mode is the recorder mode, and in the case of folder M, the operation mode is the player mode. The information of the switched current folder is stored in the built-in memory 28 so that the information can be retained even when power is not supplied.

If the FLSW 26K is not turned on, or after switching the folder, the process returns to the main flowchart.

On the other hand, the player mode executed in step S20 is a mode in which recording cannot be performed by the present audio recording / reproducing apparatus and high-quality sound reproduction can be performed, as described above. And the MP3 method.

The flowchart of the player mode is as follows.
The flowchart of the recorder mode shown in FIG. 5A is different from the recording mode, the remaining memory display, the communication mode, and the determination of the operation SW for proceeding to those processes. Illustration and explanation of the flowchart are omitted.

FIG. 6 shows a flowchart of the MENU processing executed in step S40.

That is, when the MENU SW 26I is turned on, the processing of this MENU is started, and first, a setting item is selected (step S61). The choice of this setting item is
The selection is made by sending the setting item in the forward or reverse direction by operating the FFSW26G or REWSW26H,
It is determined by turning on the PLAYSW 26E. Then, when the determination is made, the setting process of the selected setting item is performed.

That is, when the recording mode setting is selected, a recording mode setting process is executed (step S6).
3). This recording mode setting process sets whether the recording mode is the standard (SP) mode or the long time (LP) mode.

When the link mode setting is selected, a link mode setting process is executed (step S6).
4). This link mode setting processing sets ON / OFF of a link mode for reproducing a link file.

If the previous link file setting is selected, a previous link file setting process is executed (step S).
65). The preceding link file setting process is a process of selecting a link destination file to be reproduced before a designated file (link source file), and the details thereof will be described later.

When the post-link file setting is selected, a post-link file setting process is executed (step S).
66). The subsequent link file setting process is a process of selecting a link destination file to be reproduced after the designated file (link source file). The operation is the same as the previous link file setting.

If the alarm setting is selected, an alarm setting process is executed (step S67). This alarm setting process sets ON / OFF of alarm reproduction and an alarm time.

When the write-protection setting is selected, a write-protection setting process is executed (step S68). This write-protection setting process is a process of setting write-protection for each file, each folder, or the entire memory.

If the time setting is selected, a time setting process is executed (step S69). This time setting
This is a process for adjusting the time of a built-in clock of the audio recording / reproducing apparatus.

If the folder name setting is selected, a folder name setting process is executed (step S70). This folder name setting process is a process of setting the display name of the current folder.

If ID setting is selected, an ID setting process is executed (step S71). This ID setting process is a process for setting a user ID (8 alphabetical characters) of the audio recording / reproducing apparatus.

When the format setting is selected, a format setting process is executed (step S).
72). This format setting process is performed in the memory card 1
This is a process for performing the format No. 8.

After the selected setting is completed,
It is determined whether or not the setting end has been instructed by turning on the STOPSW 26F (step S73). If the setting end has not been instructed yet, the process returns to the step S61. Then, when the setting end is instructed, the process returns to the original routine.

The processing of the MENU described here is as follows.
This is the case of the recorder mode. In the player mode, the recording mode setting process is not performed.

FIG. 7 is a diagram showing a flowchart of the preceding link file setting process executed in step S65.

This is a process of designating a linked file to be reproduced before the designated file. First, information (folder & file number, etc.) of the currently designated linked file is displayed on the liquid crystal display 240. (Step S81).

Then, the above FLSW26K and FFSW2
The link destination file is selected using 6G or REWSW 26H. That is, the FFSW26G or REW
If the SW 26H is turned on (step S82), the link destination file is moved to the next file in the forward or reverse direction (step S83). If the FLSW 26K is turned on (step S84), the target folder is moved (step S85). That is, the FLSW 26
Every time K is turned on, A → B → C → M (route) → A →
... and the target folder is switched cyclically.

If the ERASESW 26J is turned on (step S86), the corresponding link data is deleted from the link data file 43, 50A, 50B, or 50C of the folder and the link is released (step S86). Step S87).

When the PLAYSW 26E is turned on (step S88), the designated link is determined (step S89). That is, the link data file 43, 50A, 50B, or 50 of the folder
A link source file and a link destination file are registered in C, and “0” is set as link position data.
Then, the process returns to the original routine.

If no operation switch is turned on and there is no operation for a predetermined time (for example, 20 seconds) (timeout) (step S90), the process returns to the original routine.

Alternatively, when the STOPSW 26F is turned on (step S91), the process returns to the original routine.

The post-link file setting process executed in step S66 is the same as the preceding link file setting process, except that "1" is set as link position data at the time of determination. Therefore, illustration and description of the flowchart are omitted.

FIG. 5B is a diagram showing a flowchart of the erasing process executed in step S42.

That is, when the ERASESW 26J is turned on, this erasing process is executed. First, in preparation for erasing, the selected file flashes and the user is asked whether the file can be erased. Is obtained (step S101).

Then, within a predetermined time, the above-mentioned ERAS
It is determined whether or not the ESW 26J has been turned on (step S
102), if not turned on, the process returns to the original routine.

On the other hand, the ERASESW26J
Is turned on, the selected file is deleted (step S103). Further, the link information related to the deleted file is deleted from the related link data file (step S104). Then, the reproduction order data file in the folder in which the deleted file is stored is rewritten (step S105), and the process returns to the original routine.

FIGS. 8 and 9 show the PLAY processing executed in step S34 in the recorder mode.
FIG. 4 is a diagram showing a series of flowcharts for explaining PLAY processing in the player mode. Further, the present audio recording / reproducing apparatus, when the reproduction of one file is completed, continuously reproduces the next file.
It is assumed that reproduction is performed in the continuous reproduction mode.

That is, when this processing is started by turning on the PLAYSW 26E, first, it is determined whether or not the link mode is turned on based on the information in the built-in memory 28 (step S111).

When the link mode is off (normal reproduction mode), a normal reproduction operation is performed. That is, first, the reproduction is started from the position of the file indicated by the current position information of the file in the internal memory 28 (step S112). The current position information of the file is information indicating the file at the time when the reproduction was stopped last time and the position (address) on the file. If the current position information of this file has not been stored yet, the reproduction order data file of the folder is referred to based on the information of the current folder stored in the internal memory 28, and the reproduction is started from the head position of the file in the head order. Will start.

Thereafter, when the FFSW 26G or the REWSW 26H is turned on during reproduction (step S113), the fast-forward or fast-return process is performed only while the operation switch is turned on (step S114).

If the PLAYSW 26E is turned on during reproduction (step S115), the reproduction is temporarily stopped at that position (step S116). In this state, if the PLAYSW 26E is turned on again, the temporary stop is released.

During playback, the STOPSW 26F
Is turned on (step S117), or until the end of the file being reproduced is completed (step S11).
8) The reproduction of this file is continued.

When the reproduction to the end of the file being reproduced is completed, the next file is found by referring to the reproduction order data file of the folder based on the information of the current folder stored in the internal memory 28. It is determined whether or not there is a next file (step S119). If the next file still exists, the current position information of the file stored in the internal memory 28 is moved to the head position of the file (step S12).
0), the reproduction is continued.

As described above, in the normal reproduction mode, for example, according to the reproduction order data file 42, (B) of FIG.
As shown in FIG.
ru. mp3 "," choucho.mp3 "," tu
lip. wma "," nanohana.wma ",
"Sakura.mp3" will be reproduced in order.

In step S117, the above ST
If it is determined that the OPSW 26F has been turned ON, or if it is determined in step S119 that there is no next file, the reproduction is stopped (step S12).
1). Then, the current position information of the file is stored in the internal memory
8 (step S122), and returns to the original routine.

In the normal reproduction mode, information on the file being reproduced is displayed on the liquid crystal display 240, as shown in FIG. 3B.
That is, when the encoded data file 41 is being reproduced (in the player mode), the first character string display section 247 displays a song name (file name), and the second character string display section 248 displays a counter. . When the DSS file is being reproduced (in the recorder mode), the first character string display section 247 displays the file length. Note that even if a link destination file is set in the link data file, that information is not displayed during playback (link display 24).
3 is not lit).

On the other hand, when it is determined in step S111 that the link mode is ON, the mode is the link reproduction mode, and the link reproduction is performed. That is, first, by referring to the link data file of the folder indicated by the information of the current folder in the internal memory 28 (the folder storing the file indicated by the current position information of the file) (step S123), the file to be reproduced (step S123) It is determined whether the specified file is the link source file and the link position data is “0”, that is, whether or not there is a linked file to be reproduced prior to the specified file (hereinafter, referred to as a previous link file) (step S124). .

Here, when there is such a previous link file, it is further determined whether or not the operation mode needs to be changed in order to reproduce the previous link file (step S125). If the operation mode needs to be changed, the operation mode is changed (step S126). That is, if the link source file is the encoded data file 41 that needs to be reproduced in the player mode, and the previous link file is the DSS file 48A, 48B, or 48C that must be reproduced in the recorder mode. For example, the operation mode is changed from the player mode to the recorder mode. Conversely, the DSS file 48 in which the link source file must be reproduced in the recorder mode
If the previous link file is the encoded data file 41 that needs to be reproduced in the player mode when the file is A, 48B, or 48C, the operation mode is changed from the recorder mode to the player mode. Then, the current position information of the file stored in the internal memory 28 is moved to the previous link file (step S12).
7).

The reproduction is started from the head position of the link source file or the previous link file indicated by the current position information of the file stored in the internal memory 28 (step S128).

Thereafter, when the FFSW 26G or the REWSW 26H is turned on during reproduction (step S129), the fast-forward or fast-return process is performed only while the operation SW is turned on (step S130).

If the PLAYSW 26E is turned on during reproduction (step S131), reproduction is temporarily stopped at that position (step S132). In this state, if the PLAYSW 26E is turned on again, the temporary stop is released.

During the reproduction, the STOPSW 26F
Is turned on (step S133), or until the end of the file being reproduced is completed (step S13).
4), the reproduction of this file is continued.

When the reproduction to the end of the file being reproduced is completed, the same link data file as that referred to in step S123 is referred to, and the link file having the next link relation to be reproduced is determined. It is detected whether or not there is (step S135). Here, the link file is a link source file if the currently reproduced file is a link destination file (previous link file), and a link position data if the currently reproduced file is a link source file. Is "1", that is, a linked file to be reproduced after the designated file.

If there is such a link file, it is further determined whether or not the operation mode needs to be changed to reproduce the link file (step S).
136) If the operation mode needs to be changed, the operation mode is changed (step S137). Then, by moving the current position information of the file stored in the internal memory 28 to the link file, the link file is reproduced (step S138).
Returning to step S129, the above processing is repeated.

If it is determined in step S135 that there is no link file, the internal memory 28
, It is determined whether or not there is a next file by referring to the reproduction order data file of the folder based on the information of the current folder stored in the file (step S139), and if there is still the next file, the file is moved to that file. (Step S
140), the reproduction is continued. Here, the next file is a file having no link relationship.

As described above, in the normal reproduction mode, the encoded data file 41 is reproduced in the order shown on the left side of FIG. In the reproduction mode, if the contents of the link data file 43 are as shown in FIG. 2B, the encoded data file 41 and the encoded data file 41 are arranged in the order shown on the right side of FIG. The DSS file will be played. That is, the encoded file “haru.mp3” and the encoded file “choch.
o. mp3 ", DSS file" olym0022.d
ss ”, DSS file“ olym0045.ds
s ", encoded file" tulip.wma ", DSS
File “olym0022.dss”, encoded file “nanohana.wma”, encoded file “s
akura. mp3 ".

Thus, in the step S133, the ST
If it is determined that the OPSW 26F has been turned ON, or if it is determined in step S139 that there is no next file, the reproduction is stopped (step S14).
1). Then, the current position information of the file is stored in the internal memory 2.
8 and reset the operation mode (step S142), and then return to the original routine. That is, if the linked file is being reproduced, the current position information of the file is moved to the head position of the linked file, and if the operation mode is not the mode for reproducing the linked file at this time, The operation mode is also changed.

In such a link reproduction mode, while the link destination file is being reproduced, the link source file information as shown in FIG. 3C and the link source file information as shown in FIG. Such a mark indicating the link and file information of the link destination are alternately displayed in a time-division manner.

That is, FIG. 3C shows a display state when reproduction is stopped in the player mode. During this suspension,
When the link destination file exists in the current file, the link display 243 is turned on. In the case of the player mode, the second character string display section 248 displays the file length. At the time of the recorder mode, the display is the same as the display at the time of reproduction.

FIG. 3D is a diagram showing a display state at the time of reproducing the linked file. During the reproduction of the linked file, a link display 243 indicating that the linked file is being reproduced is turned on in addition to the display at the time of the normal reproduction.

Then, the display of FIG. 3D and the display of FIG. 3C (display at the time of stopping reproduction) are changed at predetermined time intervals (for example, every 2 seconds) so that the link source file can be identified. ) Is displayed alternately.

Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the scope of the present invention. Of course.

[0130]

As described in detail above, according to the present invention,
A data reproducing apparatus capable of continuously reproducing a desired audio file without impairing operability can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an audio recording / reproducing apparatus to which an embodiment of a data reproducing apparatus of the present invention is applied.

FIG. 2A is a diagram illustrating a storage configuration of a memory card, and FIG. 2B is a diagram illustrating an example of table data stored in a link data file in a root directory of the memory card;

3A is a diagram showing a state in which all display elements of a display unit are turned on, FIG. 3B is a diagram showing a display example during normal reproduction (player mode), and FIG. 3C is a reproduction in player mode; It is a figure which shows the display state at the time of a stop, and (D) is a figure which shows the display state at the time of reproduction | regeneration of a linked file.

FIG. 4A is a diagram showing a main flowchart of an audio recording / reproducing apparatus to which an embodiment is applied, and FIG.
FIG. 8 is a diagram for explaining the order of reproduction.

FIG. 5A is a diagram illustrating a flowchart of a recorder mode, and FIG. 5B is a diagram illustrating a flowchart of an erasing process.

FIG. 6 is a diagram showing a flowchart of a MENU process.

FIG. 7 is a diagram showing a flowchart of a previous link file setting process.

FIG. 8 shows P in the recorder mode and the player mode.
It is a figure showing the first half of a series of flowcharts for explaining processing of LAY.

FIG. 9 shows P in the recorder mode and the player mode.
It is a figure showing the latter half part of a series of flow charts for explaining processing of LAY.

[Explanation of symbols]

Reference Signs List 15 control circuit (CPU) 17 digital signal processing unit (DSP) 18 memory card 24 display unit 25 display drive circuit 26 operation switch group 26A microphone switch (MICSW) 26B voice activation recording switch (VCVASW) 26C hold switch (HOLDSW) 26D recording Switch (RECSW) 26E Playback switch (PLAYSW) 26F Stop switch (STOPSW) 26G Fast forward switch (FFSW) 26H Fast return switch (REWSW) 26I Menu switch (MENUSW) 26J Erase switch (ERASESW) 26K Folder switch (FLSW) 28 Built-in Memory 41 Encoded data file 42, 49A, 49B, 49C Reproduction order data file 43, 50A, 50B, 50C Link data file 44, 45, 46 DSS file folder 47 System folder 48A, 48B, 48C DSS file 51 Folder name data file 52 Recovery data file 53, 54 Codec file 242 Folder display 243 Link display 244 Recording mode 245 Write-protect display 246 File number display 247 First character string display unit 248 Second character string display unit

Claims (5)

[Claims] 1. A grouping means for grouping a plurality of audio files using an arbitrary audio file as a key, and when the reproduction of the arbitrary audio file is instructed, the grouped audio files are sequentially transmitted. A data reproducing apparatus, comprising: control means for controlling reproduction. 2. The grouping means includes a reproduction order information storage means for storing reproduction order information of the plurality of audio files based on the arbitrary audio file at the time of the grouping. Controlling the reproduction of any audio file serving as the key and the other audio files which are grouped based on the reproduction order information stored in the reproduction order information storage means. The data reproducing device according to claim 1. 3. An erasing means for erasing an arbitrary audio file, and when the audio file is erased by the erasing means, reproduction order information including information on the erased audio file is stored in the reproduction order information storage means. 3. The data reproducing apparatus according to claim 2, further comprising: a reproducing order information deleting unit that deletes the information. 4. The encoding method according to claim 1, wherein in the plurality of grouped audio files, an encoding method is different between the arbitrary audio file serving as the key and the other audio files. Data playback device. 5. For the two selected audio files, a first audio file serving as a key and a relative reproduction order of the first audio file and the other second audio file are defined. Linking means for creating link information including, when reproduction of the first audio file is instructed, controlling reproduction of the first audio file and the second audio file based on the link information; A data reproducing apparatus comprising: a control unit.