api 里音频 算法 的对外接口很多 echo cancellation (AEC) 配置、控制、测试。 AudioFrame 混音 抽象类 另外一部分是codec的

混音 AudioMixer

O:\WEBRWTCSTORE\webrtc-checkout\src\api\audio\audio_mixer.h 开发中，内部使用 /* * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in