JPH06335065A - Audio equipment - Google Patents

Abstract

PURPOSE:To obtain an audio equipment in which trouble to the user is avoided even when no audio correction means is connected to the main body equipment so as to avoid useless confusion to the user unskillful to its handling. CONSTITUTION:The main body equipment 10 is provided with a display section 14, an operation section 13 and a control means 12 allowing the display section to display it that an audio correction means 20 is not connected when the audio correction means 20 is not connected and the operation relating to the audio correction means is implemented frog the operation section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device provided with an acoustic correction means such as a DSP (Digital Sound Processor) for performing acoustic correction on a voice signal.

[0002]

2. Description of the Related Art In such a conventional audio apparatus, when a DSP is not connected to the main body apparatus,
When the key operation of the main body device is performed, a display indicating that the DSP is not connected is always displayed on the display unit of the main body device to notify the user.

[0003]

However, in the above-mentioned conventional audio apparatus, when the sound correcting means is not connected to the main body apparatus, when the key operation of the main body apparatus is performed, the unconnected display is always displayed. Therefore, when the key operation is not related to the sound correction means, it is rather annoying and may cause unnecessary confusion for a user who is not used to handling.

In addition, when it is necessary to confirm the operation of the sound correcting means or to demonstrate the main body device at a store, but the sound correcting means is not actually connected to the main body device, However, it was inconvenient because the operation of the acoustic correction means could not be performed.

The present invention solves such a conventional problem and solves the troublesomeness of the user even when the main body device is not connected to the acoustic correction means, and is familiar with the handling. It is an object of the present invention to provide an excellent audio device capable of confirming the operation of the acoustic correction means and demonstrating the main body device at a store without causing unnecessary confusion to a non-user.

[0006]

In order to achieve the above object, in the case where a display section and an operating section provided in the main body device and an acoustic correction means provided in the main body device are not connected to the main body device. And a control unit that causes the display unit to display that the acoustic correction unit is not connected when an operation related to the acoustic correction unit is performed from the operation unit.

Further, the control means, when the sound correction means is not connected to the main body device, and when a predetermined operation is input from the operation unit, the operation mode of the main body device is as if the sound correction means The feature is that the operation mode is changed to the demo mode similar to the case of being connected.

[0008]

Therefore, according to the present invention, even when the sound correction means is not connected to the main body device, it is possible to eliminate the troublesomeness to the user and cause unnecessary confusion to the user who is not used to handling. Nothing.

Further, even when the sound correction means is not connected to the main body apparatus, it is possible to confirm the operation of the sound correction means and perform a demonstration of the sound correction of the main body apparatus at a store.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an audio device according to the invention, in particular
It is a block diagram which shows the structure of the Example of the audio equipment for mount. In FIG. 1, reference numeral 10 denotes a center unit, which is a main body device, which selects and sends out audio signals from various predetermined sound sources (none of which are shown). That is, FM and AM broadcast audio signals from the tuner, tape playback audio signals from the cassette deck, CD player and C
From the D-autochanger (CD A / C), the reproduced audio signal of the CD is sent out according to the operation.

Reference numeral 20 denotes a DS as an acoustic correction means for performing acoustic correction on the audio signal sent from the center unit 10.
P. Reference numeral 30 denotes an amplifier unit that amplifies the audio signal acoustically corrected by the DSP 20, and reference numerals 40, 41, ..., 47 denote speakers that receive a plurality of audio signals sent from the amplifier unit and generate a sound. Further, 50 is a remote controller that emits an optical signal to the center unit 10 in accordance with an operation.

In the DSP 20, the speaker selection, the crossover cutoff frequency (Fc), and the slope (SL0P) are performed according to the crossover setting data.
E), the function to set the polarity (PHASE) is provided.

The inside of the center unit 10 has the following structure. That is, reference numeral 11 is an audio signal selection unit that selects an audio signal corresponding to an operation command from audio signals of sound sources of a plurality of systems, and is connected to the DSP 20 by an optical cable A. Reference numeral 12 denotes a CPU as a control unit that controls the center unit 10 and communicates various control signals with the DSP 20, and is connected to the DSP 20 by a control bus. The control bus is a serial data line SD for transmitting data to and from each other, a clock line CK for transmitting a clock from the CPU 12 to the DSP 20, and a DSP 20 to the CPU 1.
Data request line S requesting data transmission to 2
It is composed of RQ. This data request line S
RQ is pulled up by a resistor, and normally a HIGH level signal is input to the CPU 12.

Further, 13 is an operation unit, 14 is a display unit for displaying each data related to tuner operation, and 15
Is a light receiving unit that receives an optical signal from the remote controller 50, converts it into an electrical signal, and inputs it to the CPU 12.

The optical signal emitted from the remote controller 50 is an infrared ray of a pulse signal, which is modulated by a command according to an operation of an operation unit (not shown) of the remote controller 50.
The CPU 12 decodes the signal converted into the electric signal by the light receiving unit 15 and decodes the command included in the optical signal. When the command from the remote controller 50 is the setting data of the acoustic correction including the crossover, the setting data is transferred to the DSP 20.

Next, the crossover setting executed by the CPU 12 will be described. 2 is a flowchart of the main routine of the CPU 12, FIGS. 3 and 4 are flowcharts of key processing 1 and key processing 2 in the main routine, and FIGS. 5 to 7 are scrolling (SCROLL), parameter (PARAM), and up in the key processing 2. It is a flowchart of a key process of down (UP / DOWN).

In FIG. 2, the display section 14 displays a display according to the set mode state. That is, if the current mode is the crossover mode (step S101), the crossover mode is displayed (step S102), and if the position mode is in progress (step S103), the position mode is displayed (step S10).
4) If in DSP mode (step S105) D
The SP mode is displayed (step S106).

If in the CD mode (step S
107) The CD mode is displayed (step S108).
In this case, when the CD A / C is connected, the CD A / C mode is displayed in the CD A / C mode.

If none of the above modes is selected, the tuner mode is displayed (step S109).

During the various modes described above, the remote controller 5
If 0 or there is a key input from the operation unit 13 (step S110), it is determined whether the key pressing duration time T is a preset predetermined time T1 or more (step S111). The predetermined time T1 is, for example, 3 seconds, which is longer than the normal key pressing time of 0.5 seconds to 1 second. When the key pressing time T is T1 or more, that is, when it is longer than the normal pressing time,
Key processing 1 is executed (step S112). When the key pressing time T is shorter than T1, that is, in the case of a normal pressing operation, the key processing 2 is executed (step S11).
3).

Next, the DSP 2 is operated by operating the remote controller 50.
A case where the setting data transferred to 0 is crossover data that divides the entire frequency band of the audio signal into a plurality of bands will be described.

In FIG. 3, when the crossover key is continuously pressed for a predetermined time T1 or more (step S
201), it is determined whether or not the crossover mode is in progress (step S202). If the crossover mode is not in progress, the mode is changed to the crossover mode (step S203). If the crossover mode is in progress, the crossover mode is in effect. Ends (step S204).
That is, when the crossover key is pressed for a predetermined time or longer, it functions as a toggle switch for switching modes.

Next, the key processing in the crossover mode will be described.

In FIG. 4, when the scroll (SCROLL) key of the operation unit of the remote controller 50 is pressed (step S301), the SCROLL processing is performed (step S302), and the parameter (PARAM) key is pressed. (Step S303) performs PARAM processing (step S304), and when the "+/-" key is pressed (step S305), UP / DOWN processing is performed (step S306). Each of these processes will be described later.

FIG. 5 is a flowchart of the operation for selecting a speaker in the crossover mode. Speaker selection is crossover scroll counter (X
SCROLLCT). The correspondence between this numerical value and each speaker is shown in Table 1.

[0027]

[Table 1] In FIG. 5, when the SCROLL key is pressed, it is determined whether the crossover mode is in progress (step S40).
1), XSC when in crossover mode
ROLLCT is incremented (+1) (step S402). Next, the value of XSCROLLCT is "7"
Is determined (step S403), and if the numerical value is "7", the numerical value of XSCROLLCT is updated to "0" (step S404). Then XS
The numerical value of CROLLCT is transferred to the DSP 20 (step S405), and the setting data of SCROLL is read (step S406).

FIG. 6 is a flowchart of the operation for setting the parameters in the crossover mode. The parameter setting is determined by the value of the crossover parameter counter (PARAMCT). The correspondence between this numerical value and each parameter is as shown in Table 2.

[0029]

[Table 2] In FIG. 6, when the PARAM key is pressed, it is determined whether the crossover mode is in progress (step S50).
1), if in crossover mode, PAR
Increment (+1) AMCT (step S5)
02). Next, it is determined whether or not the numerical value of PARAMCT is "6" (step S503), and when the numerical value is "6", the numerical value of PARAMAT is updated to "0" (step S504). After that, the numerical value of PARAMAT is transferred to the DSP 20 (step S505) and PARA
The setting data of M is read (step S506).

FIG. 7 shows low range (LOW), middle range (MID),
In the case of a high frequency 3WAY system, the cutoff frequency (Fc), which is the setting data in the crossover mode, the crossover slope characteristic (SLOPE) in each band, and the audio signal polarity (PHASE) data are determined. It is a flowchart to do.

In FIG. 7, when the "+/-" key is pressed, it is determined whether or not the crossover mode is in progress (step S601). If it is the crossover mode, it is determined whether or not it is the PHASE setting (step S602), and if it is the PHASE setting, it is set to "+" or "-" depending on the key press (step S602). S603).

If the SLOPE is set (step S604), 12 dB / 0 CT,
Either 24 dB / 0CT or 36 dB / 0CT is set (step S605).

Fc of low-pass HPF (high-pass filter)
In case of setting (step S606), depending on the key press, through, 50 Hz, 70 Hz, 100 Hz, 15
Either 0 Hz or 200 Hz is set (step S607). Fc of low pass LPF (low pass filter)
In case of setting (step S608), depending on the key press, 500 Hz, 700 Hz, 1 kHz, 1.5 kHz
Either z or 2 kHz is set (step S60).
9).

Fc of HPF (high-pass filter) in the middle range
In case of setting (step S610), depending on the key press, 500 Hz, 700 Hz, 1 kHz, 1.5 kHz
Either z or 2 kHz is set (step S61).
1). When the Fc of the low-pass LPF (low-pass filter) is set (step S612), depending on the key press,
5.5kHz, 6.5kHz, 7.5kHz, 8.5k
Either Hz or 9.5 kHz is set (step S613).

If none of the above settings are made, it is the setting of Fc of the high-frequency HPF (high-pass filter),
Depending on the key press, 5.5 kHz, 6.5 kHz, 7.
Either 5 kHz, 8.5 kHz, or 9.5 kHz is set (step S614). After that, the respective set data are transferred to the DSP 20 (step S61).
5).

As described above, according to this embodiment, the remote controller 5
Since the crossover data can be set by operating 0, the complexity of the setting can be eliminated and the space of the device can be reduced.

Further, by utilizing the display unit 14 for displaying each data such as frequency related to tuner operation,
By displaying the set value of the crossover, it is possible to make an objective and quantitative confirmation of the set data.

FIG. 8 shows the center unit 10 and the DSP 20.
It is a figure which shows the communication format between and. Figure 8 (a)
Is the serial clock line C from the center unit 10
6 is a timing chart of a clock transmitted to the DSP 20 via K. FIG. 8B shows a serial data line S
7 is a timing chart of data and acknowledge in D. This acknowledge is always output from the DSP 20.

FIG. 9 shows the CPU 12 of the center unit 10.
6 is a flowchart of a communication process with the DSP 20 executed by the. In FIG. 9, when the process shifts to the communication subroutine, it is determined whether the data request SRQ is at the LOW level (step S701), and if it is at the HIGH level, the error counter (ERRCT) is set to 3 (step S702). Next, the serial data is written, that is, the data is transferred to the DSP 20 (step S
703) A timer of 10 ms is set (step S704). Then, it is determined whether or not there is an acknowledge from the DSP 20 (step S705), and if there is no acknowledge, it is determined whether or not 10 ms of the timer has expired, that is, whether or not it has timed out (step S706). If the timeout has not occurred, the presence or absence of an acknowledge is detected for a maximum of 10 ms as shown in FIG.

When the time-out is reached, the value of the error counter is decremented by "-1" (step S70).
7). Next, it is determined whether or not the value of the error counter is "0" (step S708), and if it is not "0", the process returns to step S703. As described above, since the initial value of the error counter is "3", in order for the value of the error counter to become "0", the timer setting is performed three times, and the reception of the first acknowledge has failed. If you are following. Error counter value is "0"
When it becomes, the unconnected error occurrence process is performed (step S709). That is, "DSP" is displayed on the display unit to notify the user that the DSP 20 is not connected.

In step S705, when the acknowledge is received from the DSP 20, it means that the data transfer is normally performed, and the unconnected error canceling process (when the unconnected error generating process is not performed) is executed. (Step S710).

In step S701, if the data request SRQ is at the LOW level, the CPU1
2 sends a clock (step S711), and the data is transferred from the DSP 20 to the CPU 12 by the clock.

As shown in FIG. 9, when the DSP 20 is not connected to the center unit 10, the DSP 20
Only when it is operated, is displayed that it is not connected.

By the way, even when the DSP 20 is not connected to the center unit 10, the center unit 1
The operation as if the DSP 20 is connected can be performed to confirm the operation of the DSP of 0 or to demonstrate the center unit 10 at the store.

To shift to this demo mode, the T-MODE key and L-key of the operation unit 13 of the center unit 10 are used.
This is done by double-pressing the MODE key for a certain period of time (two seconds in the case of this embodiment) or more. In demo mode, among the functions of DSP20, volume adjustment,
Position setting, sound field setting, highway mode setting, etc. can be performed.

[0046]

As is apparent from the above-described embodiment, the present invention eliminates the troublesomeness of the user even when the sound correction means is not connected to the main body device, and the user is not accustomed to handling the device. It does not cause unnecessary confusion.

Further, even when the sound correcting means is not connected to the main body apparatus, the operation relating to the sound correcting means can be confirmed, and the demonstration concerning the sound correction of the main body apparatus at the store can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an audio device of the present invention.

FIG. 2 is a flowchart of a main routine of CPU 12 in FIG.

FIG. 3 is a flowchart of key processing 1 in the main routine of FIG.

FIG. 4 is a flowchart of key processing 2 in the main routine of FIG.

FIG. 5 is a flowchart of an operation of selecting a speaker in a crossover mode.

FIG. 6 is a flowchart of an operation for setting parameters in the crossover mode.

FIG. 7 is a flowchart for determining setting data in the crossover mode.

8 is a diagram showing a communication format between the center unit 10 and the DSP 20. FIG.

FIG. 9 is a flowchart of communication processing with the DSP 20, which is executed by the CPU 12 of the center unit 10.

[Explanation of symbols]

 10 center unit 11 audio signal selection unit 12 CPU (control means) 13 operation unit 14 display unit 15 light receiving unit 20 DSP (acoustic correction unit) 30 amplifier unit 40, 41, 47 50 remote control device

Claims (3)

[Claims] 1. An audio device, comprising: a main body device for selecting an arbitrary audio signal from a plurality of sound sources; and an acoustic correction means for acoustically correcting an audio signal supplied from the main body device. A display unit provided in the main body device, an operation unit provided in the main body device, and provided in the main body device, when the acoustic correction means is not connected to the main body device, the acoustic correction from the operation unit. An audio device, comprising: a control unit for displaying on the display unit that the acoustic correction unit is not connected when an operation related to the unit is performed. 2. The control means, when the sound correction means is not connected to the main body apparatus, and when a predetermined operation is input from the operation section, the operation mode of the main body apparatus is as if The audio apparatus according to claim 1, wherein the audio mode is changed to an operation mode of a demo mode similar to the case where the sound correction means is connected. 3. A remote control device is provided, and the control means performs the operation according to claim 1 or 2 by an operation from the remote control device instead of an operation from the operation unit of the main body device. Audio device.