发明授权
US06320825B1 Method and apparatus for recording compressed variable bitrate audio information
有权
用于记录压缩的可变比特率音频信息的方法和装置
- 专利标题: Method and apparatus for recording compressed variable bitrate audio information
- 专利标题(中): 用于记录压缩的可变比特率音频信息的方法和装置
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申请号: US09355380申请日: 1999-07-26
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公开(公告)号: US06320825B1公开(公告)日: 2001-11-20
- 发明人: Alphons A.M.L. Bruekers , Wiebe De Haan , Johannus L. Bakx , Leon M. Van De Kerkhof
- 申请人: Alphons A.M.L. Bruekers , Wiebe De Haan , Johannus L. Bakx , Leon M. Van De Kerkhof
- 优先权: EP97203743 19971129
- 主分类号: G11B1722
- IPC分类号: G11B1722
摘要:
A method for recording audio information on a record carrier, typically a bitstream signal on an optical disc, is disclosed. In the method the audio information is encoded to compressed audio data having a variable bitrate, in particular using lossless compression. The compressed audio data is recorded at a transfer speed which is controlled in dependence on the variable bitrate. A transfer speed profile (53, 54, 55) is determined for items of audio information, e.g. for each track on a CD, in which profile the average transfer speed is higher than an average transfer speed minimally required to transfer the compressed audio data of said item. Stuffing data is added to the compressed audio data according to the transfer speed profile, and transfer speed profile information is recorded on the record carrier for enabling playback at a transfer speed as indicated by the transfer speed profile information. Also a recording device, a record carrier and a playback device are disclosed.
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