# How can I solve the problem of low volume? (/en/api-reference/faq/quality/audio_low)

> For AI agents: see the complete documentation index at [llms.txt](/llms.txt).

## Step 1: Self-check [#step-1-self-check]

Check the following:

* Turn up the system volume of the receiver.
* Check whether the issue is caused by the device. You can change your playback device or try other VoIP services on the same device.
* Check whether the user opens another app during the call, which may change the audio settings or routing.
* Call the following methods to adjust the volume: `enableAudioVolumeIndication`, `adjustRecordingSignalVolume`, `adjustPlaybackSignalVolume`, and `adjustAudioMixingVolume`.
* Check the `onAudioRouteChanged` callback to see whether the audio route is set to the headset or speaker. If the audio route is set to the headset, call the `setDefaultAudioRouteToSpeakerphone` method and switch the audio route to the speaker.

## Step 2: Contact Agora Customer Support [#step-2-contact-agora-customer-support]

If the issue persists, contact Agora customer support and submit the issue with the following information:

* The name of the channel where the users encounter this issue.
* The uids of the users whose volume is too low.
* The time frame during which the volume is too low.

## Step 3: Monitor the Quality of Experience in Agora Analytics in Console [#step-3-monitor-the-quality-of-experience-in-agora-analytics-in-console]

You can check the statistics of every call in [Agora Analytics](https://dashboard.agora.io/analytics/call/search) in Console. For more information, see [Agora Analytics Tutorial](/en/agora-analytics/analyze/video-voice-sdk/call-search).