公开(公告)号：US20060168114A1

公开(公告)日：2006-07-27

申请号：US11097446

申请日：2005-03-31

申请人： Arnaud Glatron ,  Venkatesh Tumatikrishnan ,  Remy Zimmermann

发明人： Arnaud Glatron ,  Venkatesh Tumatikrishnan ,  Remy Zimmermann

IPC分类号： G06F15/16 ,  G06F15/177

CPC分类号： H04L65/605 ,  G11B20/10527 ,  G11B2020/10555 ,  H04L65/4015

摘要： A single universal audio processing system intelligently and transparently processes audio streams in real-time. The system receives audio input from one or more sources, determines how the streams should be processed, and automatically processes them in real-time for delivery to an output system. The processing happens without any intervention from the output system, which is oblivious to this processing. A set of audio processing algorithms to accomplish acoustic echo cancellation (AEC), resampling, format conversion, channel mixing or any other desired audio processing function can be supported by a universal processing system, providing a universal solution to audio processing regardless of source or sink. In one embodiment, processing functionality is implemented in an upper filter driver created using a “framework” or software architecture that implements a conventional WDM filter and a dedicated environment for audio processing.

摘要翻译： 单个通用音频处理系统实时智能和透明地处理音频流。 系统从一个或多个源接收音频输入，确定流如何处理，并自动处理它们以便传送到输出系统。 处理发生在输出系统没有任何干预的情况下，这对于这种处理是无意义的。 用于实现声学回声消除（AEC），重采样，格式转换，信道混合或任何其他所需音频处理功能的一组音频处理算法可以由通用处理系统支持，提供对音频处理的通用解决方案，而不管源或汇 。 在一个实施例中，处理功能在使用实现常规WDM滤波器和用于音频处理的专用环境的“框架”或软件体系结构创建的上部滤波器驱动器中实现。

公开(公告)号：US20060104223A1

公开(公告)日：2006-05-18

申请号：US11097823

申请日：2005-03-31

申请人： Arnaud Glatron ,  Venkatesh Tumatikrishnan ,  Remy Zimmermann

发明人： Arnaud Glatron ,  Venkatesh Tumatikrishnan ,  Remy Zimmermann

IPC分类号： H04B3/20 ,  H04J3/06

CPC分类号： H04J3/0629

摘要： A system and a process are disclosed for synchronizing asynchronous audio streams for synchronous consumption by an audio module. The system and the process receive a first audio stream and a second audio stream. The first audio stream serves as a baseline and is sent unaltered directly to the audio module. The second audio stream is split so that one split is output unaltered to a destination and the other split is input into a drift corrector. The drift corrector evaluates whether there is a drift between the first audio stream and the second audio stream. If there is drift, the second audio stream is appropriately adjusted to account for the drift. The drift-corrected second audio stream is then output to the audio module.

摘要翻译： 公开了用于同步用于由音频模块同步消耗的异步音频流的系统和过程。 系统和过程接收第一音频流和第二音频流。 第一个音频流用作基线，并且直接发送到音频模块。 第二音频流被分割，使得一个分割不变地输出到目的地，另一个分割被输入到漂移校正器中。 漂移校正器评估第一音频流和第二音频流之间是否存在漂移。 如果有漂移，则适当地调整第二音频流以考虑漂移。 漂移校正的第二音频流然后被输出到音频模块。