audio play channel

Hi, we use DM8168+3101, RDK4.0.

I use audio capture->playback.

I found the playback can not distinguish the right and left channel.

I found some restrictions in the code as following:

#define AUDIO_SAMPLE_RATE_SUPPORTED          16000       //< Only 16KHz supported

#define AUDIO_CHANNELS_SUPPORTED                    1                //< Only mono

when init play device with Audio_initPlayRenderDevice, it sets one channel.

I want to make sure if the playback can only support one channel?

I set to stereo, the sound is not normal.