DAX Audio Applet (v26.6.3)¶
The DAX Audio applet provides a per-channel RX audio bridge and a single TX audio stream for digital mode operation. It displays live audio meters and gain sliders for DAX channels 1–4 and the TX stream, along with slice-assignment indicators.
Enabling DAX Audio¶
- Click the
DAXtray button on the right sidebar to open the DAX Audio applet. - Click
Enableto start the DAX audio bridge. The setting persists asAutoStartDAX. - Once enabled, all DAX RX and TX streams become active.
Setting DAX RX gain per channel¶
Adjust the gain for each DAX receive channel (1–4) to control the audio level sent to connected software.
Steps¶
- In the DAX Audio applet, locate the row for the desired channel (
DAX 1throughDAX 4). - Drag the thumb on the combined meter/slider left or right to decrease or increase RX gain.
- The value saves immediately and persists as
DaxRxGain1throughDaxRxGain4.
Setting DAX TX gain¶
Adjust the DAX TX gain slider to control how much audio from your transmit slice is sent through the DAX TX stream to connected software.
Steps¶
- In the DAX Audio applet, locate the
TX:row at the bottom. - Drag the thumb on the
TX gain+meterslider left or right to decrease or increase TX gain. - The value saves immediately and persists as
DaxTxGain.
What each control does¶
| Control | Default | Range | Persisted key |
|---|---|---|---|
Enable button |
off | on/off | AutoStartDAX |
DAX 1 gain+meter slider |
0.5 | 0.0 – 1.0 | DaxRxGain1 |
DAX 2 gain+meter slider |
0.5 | 0.0 – 1.0 | DaxRxGain2 |
DAX 3 gain+meter slider |
0.5 | 0.0 – 1.0 | DaxRxGain3 |
DAX 4 gain+meter slider |
0.5 | 0.0 – 1.0 | DaxRxGain4 |
TX gain+meter slider |
0.5 | 0.0 – 1.0 | DaxTxGain |
Slice-assignment indicators¶
| Indicator | States | Meaning |
|---|---|---|
DAX 1..4 assignment |
— or Slice A–H | The slice currently assigned to this DAX channel |
TX assignment |
— or Slice A–H | The slice currently holding TX privileges (drives DAX TX) |
The slice letters in the assignment indicators now render in rich text format, providing improved visual clarity when slice labels contain HTML entities (issue #2606).
Accessibility¶
Each DAX RX gain slider and the TX gain slider now has an accessible name. Screen readers announce DAX RX 1 gain through DAX RX 4 gain for the receive channel sliders, and DAX TX gain for the transmit gain slider.
Tips¶
- The meter bars reflect post-fader level: they show the actual output level after your gain setting is applied. Moving a slider gives immediate visual feedback even before you transmit.
- A gain of 0.5 is the default starting point. If your digital mode software reports overdriven or weak audio, adjust from there in small increments.
- On Linux, DAX RX latency has been reduced from approximately 400 ms to approximately 200 ms using a native PipeWire
pw_streamsource path, replacing the previous PulseAudio client.