Audio Settings

Audio Settings

Radio Audio Outputs

Controlled via Settings → Radio Setup → Audio tab.

Output	Control	Command
Line Out	Gain slider (0-100) + Mute	mixer lineout gain N / mixer lineout mute 0|1
Headphone	Gain slider (0-100) + Mute	mixer headphone gain N / mixer headphone mute 0|1
Front Speaker	Mute only	mixer front_speaker mute 0|1

These control the physical audio outputs on the radio itself (for powered speakers or headphones connected directly to the radio).

PC Audio Devices

Output (Speakers)

Select which PC audio device receives the radio's RX audio. The default system output is used if none is selected.

AetherSDR automatically handles sample rate conversion:

• If the device supports 24kHz → direct output
• If not → upsamples to 48kHz (duplicates each sample pair)

Input (Microphone)

Select which PC audio device captures mic audio for TX. Only active when mic source is set to PC in the P/CW applet.

• If the device supports 24kHz → direct capture
• If not → captures at 48kHz and downsamples (drops every other sample pair)

Mic Source Selection

Controlled in the P/CW applet:

Source	Description
MIC	Front panel 1/8" jack
BAL	Rear balanced XLR input
LINE	Rear line input
ACC	Accessory connector
PC	PC audio via DAX stream

When PC is selected, TX audio streams from your selected PC input device to the radio via VITA-49 UDP packets.

Volume Control

• AF slider (VFO widget or RX applet) — client-side volume
• Mute button (speaker emoji) — mutes RX audio locally
• The radio's volume is independent of the client-side volume