# Adjust Audio Quality

If calls on the Cloud Voice App sound unclear, you can tune a handful of audio settings to sharpen them. The controls cover echo removal, the audio codec, network optimization, and volume gain.

## Open the audio settings

1. On the **Calls** page, tap your account name in the top-left corner.
2. Go to **Settings > Audio Options**.

## Available settings

Adjust any of the following to suit your environment.

| Setting | What it does |
| --- | --- |
| Echo Cancellation | Turn this on to strip out the echo you sometimes hear while talking on the phone. |
| Codec | Choose the codec (coder-decoder) used to compress your audio. It uses lossy compression to keep quality high while shrinking the amount of data sent. Options are **u-law**, **a-law**, **iLBC**, **G722**, **G729** (default), and **Opus**. |
| ICE (Interactive Connectivity Establishment) | Turn this on to reduce network latency and packet loss for a steadier connection. |
| Audio Gain Control | Raise or lower the level of the audio you receive and the audio you transmit. Useful when the other party sounds too loud or too faint. |

:::tip
Change one setting at a time and place a test call after each change. That way you can tell which adjustment actually helped.
:::

:::note
Changes to the ICE setting only apply after you close and relaunch the Cloud Voice App.
:::