Selected bitrate is not supported by the AAC encoder at the current sample rate

This article contains troubleshooting information

Selected bitrate is not supported by the AAC encoder at the current sample rate. The transmitted audio will be downsampled to 32kHz

Source-Connect Pro and Pro X | 3.9 | macOS

Description

When users start a session in Source-Connect, they receive the following error message and don't receive any sound in the application.

Cause

You have selected an incorrect bitrate in Source-Connect. Bitrates lower than 64Mbps only support a 32kHz sample rate. You will need at least 64Mbps per channel, so:

• For a mono channel, the minimum bitrate is 64Mbps.
• For a stereo channel, the minimum bitrate is 128Mbps.
• For surround 5.1, the minimum bitrate is 384Mbps.
• For surround 7.1, the minimum bitrate is 512Mbps.

Actions

In order to fix this issue, follow the instructions below:

1. Open Source-Connect Pro or Pro X.
2. In the settings section, check what channel you are using.
3. Look for the bitrate setting.
4. Depending on your number of channels, select the correct bitrate as listed above.