KR950010767B1 - 피시엠 음색 데이타의 압축신장시스템 - Google Patents
피시엠 음색 데이타의 압축신장시스템 Download PDFInfo
- Publication number
- KR950010767B1 KR950010767B1 KR1019930028628A KR930028628A KR950010767B1 KR 950010767 B1 KR950010767 B1 KR 950010767B1 KR 1019930028628 A KR1019930028628 A KR 1019930028628A KR 930028628 A KR930028628 A KR 930028628A KR 950010767 B1 KR950010767 B1 KR 950010767B1
- Authority
- KR
- South Korea
- Prior art keywords
- data
- tone
- original
- sampling
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3053—Block-companding PCM systems
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3002—Conversion to or from differential modulation
- H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/60—General implementation details not specific to a particular type of compression
- H03M7/6017—Methods or arrangements to increase the throughput
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electrophonic Musical Instruments (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (1)
- 특정한 음색의 상위데이타는 증감코드부분과 반복량코드부분으로 나뉘어 저장하고 하위데이타는 그대로 저장하고 있는 음색 샘플링 데이타롬(11)과, 입력되는 재생 파라미터에 의해 상기 음색 샘플링 데이타롬(11)의 상위/하위데이타를 각각 읽어내기 위한 상위/하위 음색 어드레스신호를 연속적으로 발생하는 어드레스 발생부(10)와, 상기 재생 파라미터 입력에 의해 증감코드와 최초로 덧셈/뺄셈을 하기위한 초기음색 테이블(12)과, 상기 음색 샘플링 데이타롬(11)에서 출력되는 상위데이타 증감코드를 상기 초기음색 테이블(12)의 초기음색 데이타의 상위데이타와 덧셈연산을 하고 이어서 출력되는 하위데이타와 함께 레지스터에 저장한후 상기 초기음색 데이타 바로 다음의 원음색 샘플링 데이타로 출력하는 원음색 재생부(13)와, 상기 원음색 재생부(13)의 원음색 샘플데이타와 상기 초기음색 데이블(12)의 데이타를 원래의 재생 파라미터에 의해 연산처리하여 원래의 소리로 재생시키는 디지탈신호 처리부(14)와, 상기 디지탈신호 처리부(14)에서 연산처리된 디지탈신호를 아날로그신호로 변환시켜 사운드출력하는 디지탈/아날로그 변환부(15)로 구성함을 특징으로 하는 피시엠 음색 데이타의 압축신장장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930028628A KR950010767B1 (ko) | 1993-12-20 | 1993-12-20 | 피시엠 음색 데이타의 압축신장시스템 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930028628A KR950010767B1 (ko) | 1993-12-20 | 1993-12-20 | 피시엠 음색 데이타의 압축신장시스템 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950022181A KR950022181A (ko) | 1995-07-28 |
KR950010767B1 true KR950010767B1 (ko) | 1995-09-22 |
Family
ID=19371762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930028628A Expired - Fee Related KR950010767B1 (ko) | 1993-12-20 | 1993-12-20 | 피시엠 음색 데이타의 압축신장시스템 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950010767B1 (ko) |
-
1993
- 1993-12-20 KR KR1019930028628A patent/KR950010767B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR950022181A (ko) | 1995-07-28 |
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