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公开(公告)号:US20100296676A1
公开(公告)日:2010-11-25
申请号:US12863898
申请日:2009-01-14
IPC分类号: H04B1/00
CPC分类号: G11B20/10527 , G11B27/034 , G11B2020/10546 , G11B2020/10759 , G11B2020/10805
摘要: A sound reproducing device includes a decoder section (1200) configured to decode an audio-signal bit stream input from the outside world, and to generate a decoded PCM signal; a control section (1100) configured to identify reproduction conditions from reproduction-instruction information obtained from the outside world and decoding information obtained from the decoder section (1200), and to provide a reproduction instruction; and an additional-audio addition section (1500) configured to process additional audio data input from the outside world, to add a result with the decoded PCM signal, and to output a result as an output PCM signal. The additional-audio addition section (1500) includes an additional-audio generation section (1510) configured to process the additional audio data so that the additional audio data can be added with the decoded PCM signal, and to output a result as an additional-audio PCM signal, and an adder (1520) configured to mix the additional-audio PCM signal and the decoded PCM signal. The additional-audio generation section (1510) includes a plurality of processing means (1511 and 1512) depending on a trade-off between the amount of load of computation process in the processing and acoustic properties of a processing result. The control section (1100) identifies one of the plurality of processing means (1511 and 1512) based on the reproduction-instruction information and the decoding information. The additional-audio generation section (1510) processes the additional audio data by the processing means identified by the control section (1100).
摘要翻译: 声音再现装置包括:解码器部分,被配置为解码从外部世界输入的音频信号比特流,并产生解码的PCM信号; 控制部(1100),被配置为根据从外部世界获得的再现指示信息和从解码器部分(1200)获得的解码信息来识别再现条件,并提供再现指令; 以及附加音频附加部分(1500),被配置为处理从外部世界输入的附加音频数据,以将结果与解码的PCM信号相加,并输出结果作为输出PCM信号。 附加音频附加部分(1500)包括附加音频生成部分(1510),其被配置为处理附加音频数据,使得附加音频数据可以与解码的PCM信号相加,并且作为附加音频输出部分输出结果, 音频PCM信号和被配置为混合附加音频PCM信号和解码的PCM信号的加法器(1520)。 根据处理中的计算处理的负载量和处理结果的声学特性之间的折衷,附加音频产生部分(1510)包括多个处理装置(1511和1512)。 控制部(1100)基于再现指示信息和解码信息来识别多个处理装置(1511和1512)中的一个。 附加音频生成部分(1510)由控制部分(1100)识别的处理装置处理附加音频数据。