# Audio playback use case

Source: [https://docs.qualcomm.com/doc/80-88500-4/topic/audio_playback_use_case.html](https://docs.qualcomm.com/doc/80-88500-4/topic/audio_playback_use_case.html)

The PulseAudio module exposes many sink and sources to the PulseAudio core and
        selects the appropriate sink/source based on stream type. The playback modes are
        differentiated based on the flags received from the PulseAudio module.

All the supported playback use cases [sinks] can be found at
                /usr/share/pulseaudio/qahw/configs/kona-iot-snd-card.conf.

- **[Primary playback](https://docs.qualcomm.com/doc/80-88500-4/topic/primary_playback.html)**  

The primary sink is used for the non-music playback via the primary path.
- **[Compress offload playback](https://docs.qualcomm.com/doc/80-88500-4/topic/compress_offload_playback.html)**  

The offload sink is used for compressed/pulse code modulation (PCM) playback via         offload path such as music.

**Parent Topic:** [Audio](https://docs.qualcomm.com/doc/80-88500-4/topic/140_Audio.html)

Last Published: Aug 18, 2023

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