Returns the number of angle values required to represent the given channel configuration. Use this function with supported 2D standard channel configurations only. 在文件AkSpeakerConfig.h第346行定义。 参考 AK_SPEAKER_BACK_CENTER、AK_SPEAKER_FRONT_CENTER、AK_SPEAKER_LOW_FREQUENCY、AK_SPEAKER_SETUP_DEFAULT_PLANE、AKASSERT及ChannelMaskToNumChannels(). |