# Enable audio

Bring up the audio subsystem, confirm it’s ready, and play and record
audio with the Audio PipeWire utilities.

Enable audio in two stages: bring up audio to validate that the
subsystem is ready, then use the PipeWire utilities pw-play and
pw-record to play, record, and verify audio.

The following figure shows the workflow to enable audio:

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Audio enablement workflow

## Verify low power audio interface (LPAI) is enabled

Locate the following log marker in the bootup log to confirm that the
Peripheral Image Loader (PIL) loaded the LPAI image and that the ADSP is up:

[   11.649397] remoteproc remoteproc1: powering up adsp [   11.649399] remoteproc remoteproc1: Booting fw image qcom/glymur/adsp.mbn, size 17074136
    [   12.147242] remoteproc remoteproc1: remote processor adsp is now up
    [   12.172057] qcom,fastrpc 6800000.remoteproc:glink-edge.fastrpcglink-apps-dsp.-1.-1: assigned reserved memory node adsp-rpc-remote-heap
    [   12.186896] PDR: Indication received from msm/adsp/audio_pd, state: 0x1fffffff, trans-id: 1
    [   12.188604] qcom,apr 6800000.remoteproc:glink-edge.adsp_apps.-1.-1: Adding APR/GPR dev: gprsvc:service:2:1
    [   14.262794] qcom,apr 6800000.remoteproc:glink-edge.adsp_apps.-1.-1: Adding APR/GPR dev: gprsvc:service:2:2
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If this message isn’t present in the bootup log, the LPAI image either
didn’t load or LPAI crashed. If the LPAI fails to load, re-flash the device.

## Verify sound card is registered

To confirm sound card registration, run the following commands:

~$ cat /proc/asound/cards
    0 [GLYMURCRD      ]: glymur - GLYMUR-CRD
                         GLYMUR-CRD
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Locate the sound card named GLYMUR-CRD. If sound card registration
fails, re-flash the device. If the issue persists, contact the Qualcomm
support team.

## Enable audio with PipeWire

PipeWire is a graph-based processing framework that handles multimedia
data. Find the PipeWire source code at `build-qcom-wayland/workspace/sources/pipewire`.
For detailed APIs, see the [PipeWire open source documentation.](https://docs.pipewire.org/page_api.html).

Complete the following prerequisites for PipeWare:

1. Install the following packages:

sudo apt update
        sudo apt install audioreach-pipewire-plugin
        sudo apt install audioreach-kernel-dkms
        sudo apt install audioreach-config
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2. Restart the device.
3. Check `wpctl` status using the following command:

~$ wpctl status
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## Play audio with PipeWire

To play audio, run the following example command:

pw-play --target=pal_sink_speaker_ll /tmp/test.wav -v
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## Record audio with PipeWire

To record audio, run the following example command:

pw-record --target=pal_source_handset_mic --rate=48000 --format=s16 --channels=2 /tmp/test.wav -v
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Last Published: Sep 08, 2026

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