发明名称 |
AUDIO CODING AND DECODING |
摘要 |
An audio encoding device (100) comprises first encoding means (101, 111) for encoding transient signal components and/or sinusoidal signal components of an audio signal (x(n)) and producing a residual signal (z(n)), and second encoding means for encoding the residual signal. The second encoding means comprise filter means (122) for selecting at least two frequency bands of the residual signal. The selected frequency bands (LF, HF) of the residual signal (z(n)) are encoded by a first encoding unit (123) and a second encoding unit (124) respectively. The first encoding unit (123) may comprise a waveform encoder, such as a time-domain encoder, while the second encoding unit (124) may comprise a noise encoder.
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申请公布号 |
US2009070118(A1) |
申请公布日期 |
2009.03.12 |
申请号 |
US20050718611 |
申请日期 |
2005.11.03 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS, N.V. |
发明人 |
DEN BRINKER ALBERTUS CORNELIS;RIERA PALOU FELIPE;OOMEN ARNOLDUS WERNER JOHANNES;RAULT JEAN-BERNARD HERVE MARIE;VIRETTE DAVID SYLVAIN THIERRY;PHILIPPE PIERRICK JEAN-LOUISE MARIE |
分类号 |
G10L19/00;G10L19/02;G10L19/08;G10L19/16 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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