AudioParams

public class AudioParams
    {
        public int sample_rate { set; get; }
        public int channels { set; get; }
        public RAW_AUDIO_FRAME_OP_MODE_TYPE mode { set; get; }
        public int samples_per_call { set; get; }

        public AudioParams()
        {
            sample_rate = 0;
            channels = 0;
            mode = RAW_AUDIO_FRAME_OP_MODE_TYPE.RAW_AUDIO_FRAME_OP_MODE_READ_ONLY;
            samples_per_call = 0;
        }

        public AudioParams(int samplerate, int channel, RAW_AUDIO_FRAME_OP_MODE_TYPE type, int samplesPerCall)
        {
            sample_rate = samplerate;
            channels = channel;
            mode = type;
            samples_per_call = samplesPerCall;
        }
    };

You can pass an AudioParams object in the following APIs to set the audio data format for the corresponding callback:

SetRecordingAudioFrameParameters: Sets the data format for the OnRecordAudioFrame callback.
SetPlaybackAudioFrameParameters: Sets the data format for the OnPlaybackAudioFrame callback.
SetMixedAudioFrameParameters: Sets the data format for the OnMixedAudioFrame callback.
SetEarMonitoringAudioFrameParameters: Sets the data format for the OnEarMonitoringAudioFrame callback.

Note:

The SDK calculates the sampling interval using the samplesPerCall, sampleRate, and channel parameters in AudioParams, and triggers the OnRecordAudioFrame, OnPlaybackAudioFrame, OnMixedAudioFrame, and OnEarMonitoringAudioFrame callbacks based on this interval.
Sampling interval = samplesPerCall / (sampleRate × channel).
Make sure the sampling interval is not less than 0.01 (s).

Properties

sample_rate

Sampling rate of the data in Hz. Valid values:

8000
16000 (default)
32000
44100
48000

channels

Number of audio channels. Valid values:

1: Mono (default)
2: Stereo

mode

Usage mode of the data. See RAW_AUDIO_FRAME_OP_MODE_TYPE.

samples_per_call

Number of samples per call. Typically 1024 in scenarios like media stream relay.