JPS623440B2 - - Google Patents
Info
- Publication number
- JPS623440B2 JPS623440B2 JP51121553A JP12155376A JPS623440B2 JP S623440 B2 JPS623440 B2 JP S623440B2 JP 51121553 A JP51121553 A JP 51121553A JP 12155376 A JP12155376 A JP 12155376A JP S623440 B2 JPS623440 B2 JP S623440B2
- Authority
- JP
- Japan
- Prior art keywords
- value
- signal
- quantization
- interval
- predetermined coefficient
- 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
Links
- 238000013139 quantization Methods 0.000 claims description 36
- 230000005236 sound signal Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005309 stochastic process Methods 0.000 description 1
Landscapes
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12155376A JPS5346210A (en) | 1976-10-08 | 1976-10-08 | Sectional dpcm system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12155376A JPS5346210A (en) | 1976-10-08 | 1976-10-08 | Sectional dpcm system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5346210A JPS5346210A (en) | 1978-04-25 |
JPS623440B2 true JPS623440B2 (ko) | 1987-01-24 |
Family
ID=14814086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12155376A Granted JPS5346210A (en) | 1976-10-08 | 1976-10-08 | Sectional dpcm system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5346210A (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55166337A (en) * | 1979-06-12 | 1980-12-25 | Nec Corp | Adaptive/predictive dpcm method and its device |
JPH0776873B2 (ja) * | 1986-04-15 | 1995-08-16 | ヤマハ株式会社 | 楽音信号発生装置 |
JP2523549B2 (ja) * | 1986-12-12 | 1996-08-14 | 株式会社日立製作所 | Adpcm符号化器およびadpcm符号化方法 |
-
1976
- 1976-10-08 JP JP12155376A patent/JPS5346210A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5346210A (en) | 1978-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7421388B2 (en) | Compressed domain voice activity detector | |
US4811396A (en) | Speech coding system | |
JP2005189886A (ja) | オーディオ信号の符号化効率を向上させる方法 | |
US20030195745A1 (en) | LPC-to-MELP transcoder | |
JPH02168729A (ja) | 音声符号化・復号化方式 | |
JPS623440B2 (ko) | ||
JPH01261930A (ja) | 音声復号器のポスト雑音整形フィルタ | |
JP3336619B2 (ja) | 信号処理装置 | |
Peric et al. | Multilevel delta modulation with switched first-order prediction for wideband speech coding | |
JP3417362B2 (ja) | 音声信号復号方法及び音声信号符号化復号方法 | |
JP3496618B2 (ja) | 複数レートで動作する無音声符号化を含む音声符号化・復号装置及び方法 | |
JP3099876B2 (ja) | 多チャネル音声信号符号化方法及びその復号方法及びそれを使った符号化装置及び復号化装置 | |
JPS6134697B2 (ko) | ||
JP2906596B2 (ja) | 音声符号化装置 | |
JPH07202713A (ja) | 音声信号の符号化伝送方法 | |
JP3102673B2 (ja) | 音声品質改善装置 | |
JP3144213B2 (ja) | 音声パラメータ分析装置および音声符号化装置 | |
JP2633318B2 (ja) | 音声符号化装置 | |
JPS6235680B2 (ko) | ||
JPH11109996A (ja) | 音声符号化装置、音声符号化方法及び音声符号化情報の記録された光記録媒体並びに音声復号装置 | |
KR960003626B1 (ko) | 변환 부호화된 오디오 신호의 난청자용 복호화 방법 | |
JPH05119800A (ja) | デジタル音声データの高能率圧縮方法 | |
JP3330178B2 (ja) | 音声符号化装置および音声復号化装置 | |
JP3444261B2 (ja) | 変換符号化方法及び装置 | |
JPH037120B2 (ko) |