公开(公告)号：WO2011014336A1

公开(公告)日：2011-02-03

申请号：PCT/US2010/041133

申请日：2010-07-07

Applicant: TAG NETWORKS, INC. ,  HERR, Stefan ,  SIGMUND, Ulrich

Inventor： HERR, Stefan ,  SIGMUND, Ulrich

IPC: G10L19/00

CPC classification number: G10L19/00 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/173

Abstract: A computer-implemented method of encoding audio includes accessing a plurality of independent audio source streams, each of which includes a sequence of source frames. Respective source frames of each sequence include respective pluralities of pulse-code modulated audio samples. Each of the plurality of independent audio source streams is separately encoded to generate a plurality of independent encoded streams, each of which corresponds to a respective independent audio source stream. The encoding includes, for respective source frames, converting respective pluralities of pulse-code modulated audio samples to respective pluralities of floating-point frequency samples that are divided into a plurality of frequency bands. An instruction to mix the plurality of independent encoded streams is received; in response, respective floating-point frequency samples of the independent encoded streams are combined. An output bitstream is generated that includes the combined respective floating-point frequency samples.

Abstract translation: 计算机实现的音频编码方法包括访问多个独立音频源流，每个独立音频源流包括源帧序列。 每个序列的相应源帧包括相应的多个脉冲编码调制音频样本。 多个独立音频源流中的每一个被分别编码以产生多个独立的编码流，每个独立的编码流对应于相应的独立音频源流。 对于各个源帧，编码包括将相应的多个脉冲编码调制的音频样本转换成分成多个频带的相应多个浮点频率采样。 接收混合多个独立编码流的指令; 作为响应，组合独立编码流的相应浮点频率样本。 生成包括组合的各个浮点频率样本的输出比特流。

公开(公告)号：WO2008086170A1

公开(公告)日：2008-07-17

申请号：PCT/US2008/050221

申请日：2008-01-04

Applicant: TAG NETWORKS, INC. ,  HERR, Stefan ,  SIGMUND, Ulrich

Inventor： HERR, Stefan ,  SIGMUND, Ulrich

IPC: G10L19/00 ,  G10L19/14 ,  H04S3/00

CPC classification number: G10L19/24 ,  G07F17/32 ,  G10L19/008 ,  G10L19/032 ,  H04S3/008 ,  H04S2420/03

Abstract: A method and related system of encoding audio is disclosed. In the method, data representing a plurality of independent audio signals is accessed. The data representing each respective audio signal comprises a sequence of source frames. Each frame in the sequence of sources frames comprises a plurality of audio data copies. Each audio data copy has an associated quality level that is a member of a predefined range of quality levels, ranging from a highest quality level to a lowest quality level. The plurality of source frame sequences is merged into a sequence of target frames that comprise a plurality of target channels. Merging corresponding source frames into a respective target frame includes selecting a quality level and assigning the audio data copy at the selected quality level of each corresponding source frame to at least one respective target channel.

Abstract translation: 公开了一种编码音频的方法和相关系统。 在该方法中，访问表示多个独立音频信号的数据。 表示每个相应音频信号的数据包括源帧序列。 源帧序列中的每个帧包括多个音频数据副本。 每个音频数据副本具有相关联的质量水平，其是从最高质量水平到最低质量水平的预定义质量水平范围的成员。 多个源帧序列被合并到包括多个目标信道的目标帧序列中。 将相应的源帧合并到相应的目标帧中包括选择质量水平，并将每个对应的源帧的所选质量等级的音频数据拷贝分配给至少一个相应的目标信道。