Benjamin Carlsson e53e932dc8 Allow microphone channel selection for voice conversations (#49836) ...

## Why

Mixing every input on a multichannel audio device can include playback channels in microphone capture. Selecting only microphone inputs keeps those playback channels out of the captured audio.

## What changed

- Add `audio.microphone_channel` with one-based channel numbers, accepting a single value or an array such as `[1, 2]`. Leaving it unset preserves mixing of all inputs.
- Add an input-channel picker for the selected microphone when it has at least three channels. Require a nonempty selection and save it locally for the next voice conversation.
- Average only the selected channels, deduplicate selections, and reject empty or unavailable selections without falling back to other inputs.
- Clear saved channel selections when saving an input device and report configuration overrides that prevent the reset from taking effect.

## Testing

Add regression coverage for excluding playback channels, sample conversion, subset mixing, invalid selections, configuration loading, local persistence and overrides, and picker selection and cancellation. Update UI snapshots and verify channel selections are passed to the voice helper.

GitOrigin-RevId: 99960dcfa7b10cf38270768a90bb84a4be95a406

2026-10-01 02:59:26 +00:00

..

audio_sink_tests.rs

Preserve voice playback across pauses and packet bursts (#46880)

2026-09-20 20:16:51 +00:00

audio_sink.rs

Preserve voice playback across pauses and packet bursts (#46880)

2026-09-20 20:16:51 +00:00

audio_track_tests.rs

Keep voice RTP timestamps aligned to 20 ms packets (#48824)

2026-09-28 00:43:04 +00:00

audio_track.rs

Keep voice RTP timestamps aligned to 20 ms packets (#48824)

2026-09-28 00:43:04 +00:00

capture_worker_tests.rs

Keep voice RTP timestamps aligned to 20 ms packets (#48824)

2026-09-28 00:43:04 +00:00

capture_worker.rs

Keep voice sessions alive through mute and audio backlog (#44671)

2026-09-10 23:25:10 +00:00

device_buffers_tests.rs

…

device_buffers.rs

Preserve voice playback across pauses and packet bursts (#46880)

2026-09-20 20:16:51 +00:00

devices_tests.rs

Add local audio device selection to TUI voice settings (#49437)

2026-09-30 01:58:03 +00:00

devices_unavailable.rs

Add local audio device selection to TUI voice settings (#49437)

2026-09-30 01:58:03 +00:00

devices.rs

Allow microphone channel selection for voice conversations (#49836)

2026-10-01 02:59:26 +00:00

incoming_tests.rs

Keep voice sessions alive through mute and audio backlog (#44671)

2026-09-10 23:25:10 +00:00

incoming.rs

Keep voice sessions alive through mute and audio backlog (#44671)

2026-09-10 23:25:10 +00:00

input_channel_tests.rs

Allow microphone channel selection for voice conversations (#49836)

2026-10-01 02:59:26 +00:00

input_channel.rs

Allow microphone channel selection for voice conversations (#49836)

2026-10-01 02:59:26 +00:00

main_tests.rs

Keep voice sessions alive through mute and audio backlog (#44671)

2026-09-10 23:25:10 +00:00

main.rs

Add local audio device selection to TUI voice settings (#49437)

2026-09-30 01:58:03 +00:00

playback_tests.rs

Preserve voice playback across pauses and packet bursts (#46880)

2026-09-20 20:16:51 +00:00

playback.rs

Preserve voice playback across pauses and packet bursts (#46880)

2026-09-20 20:16:51 +00:00

playout_tests.rs

Preserve voice playback across pauses and packet bursts (#46880)

2026-09-20 20:16:51 +00:00

playout.rs

Preserve voice playback across pauses and packet bursts (#46880)

2026-09-20 20:16:51 +00:00

processing_tests.rs

Refresh the speaker format when restarting voice output (#44924)

2026-09-11 22:09:02 +00:00

processing.rs

Refresh the speaker format when restarting voice output (#44924)

2026-09-11 22:09:02 +00:00

runtime.rs

…

service_failure.rs

Keep voice sessions alive through mute and audio backlog (#44671)

2026-09-10 23:25:10 +00:00

transport_network_tests.rs

…

transport_runtime_tests.rs

…

transport_runtime.rs

…

transport_tests.rs

…

transport.rs

…