| 发明名称 |
AUDIO OBJECT ENCODING AND DECODING |
| 摘要 |
An audio object encoder comprises a receiver (701) which receives N audio objects. A downmixer (703) downmixes the N audio objects to M audio channels, and a channel circuit (707) derives K audio channels from the M audio channels, K=1, 2 and K<M. A parameter circuit (709) generates audio object upmix parameters for at least part of each of the N audio objects relative to the K audio channels and an output circuit (705, 711) generates an output data stream comprising the audio object upmix parameters and the M audio channels. An audio object decoder receives the data stream and includes a channel circuit (805) deriving K audio channels from the M channel downmix; and an object decoder (807) for generating at least part of each of the N audio objects by upmixing the K audio channels based on the audio object upmix parameters. The invention may allow improved object encoding while maintaining backwards compatibility. |
| 申请公布号 |
US2014297296(A1) |
申请公布日期 |
2014.10.02 |
| 申请号 |
US201214350112 |
申请日期 |
2012.10.29 |
| 申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
Koppens Jeroen Gerardus Henricus;Oomen Arnoldus Werner Johannes;Van De Kerkhof Leon Maria |
| 分类号 |
G10L19/008 |
主分类号 |
G10L19/008 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An audio object encoder comprising:
a receiver for receiving N audio objects; a mixer for mixing the N audio objects to M audio channels; a channel circuit for deriving K audio channels from the M audio channels where K=1 or 2 and K<M; a parameter circuit generating audio object upmix parameters for at least part of each of the N audio objects relative to the K audio channels; an output circuit for generating an output data stream comprising the audio object upmix parameters and the M audio channels. |
| 地址 |
EINDHOVEN NL |
