Default sample rate (Hz) advertised in the recording envelope. The
captured Float32 PCM frames already carry the track's actual sample rate;
this is the value reported to voice-sdk-debug so it can interpret the
payload. 48 kHz is the typical WebRTC audio track rate.
Default sample rate (Hz) advertised in the recording envelope. The captured Float32 PCM frames already carry the track's actual sample rate; this is the value reported to voice-sdk-debug so it can interpret the payload. 48 kHz is the typical WebRTC audio track rate.