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add a tone test mode that bypasses the soundcard

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Add -tone-test to transmit a generated 440 Hz Opus tone and save
incoming audio to the file named by -tone-out.
Diagnosing an audio problem previously required a working capture and
playback device, which is exactly what is in question. This mode opens
no OpenAL device at all, so the network and codec path can be tested
on a machine with no sound hardware.

Open the capture file before starting the generator.
Starting transmission first left a tone goroutine running with nowhere
to write when the path was unusable.

Refuse file playback while in tone test mode, and ignore the
microphone volume keys.
Both operate on a stream that does not exist here.

Stop the generator and detach the file saver on disconnect.
A reconnect otherwise attached a second saver to the same file.

Add -auto-transmit to key the microphone as soon as the connection is
up.
Useful for a bot or a monitoring client that should never need a
keypress. It runs from both the connect event and the point where the
audio stream is created, because the server's welcome arrives before
the stream exists.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Brandon McGinty
2026-08-20 14:42:52 -04:00
co-authored by Claude Opus 5
parent 17a4662c6c
commit ecca0a63ed
6 changed files with 354 additions and 14 deletions
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ui.go
+30 -6
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@@ -245,6 +245,10 @@ func (b *Barnard) CommandPlayFile(ui *uiterm.Ui, cmd string) {
b.AddOutputLine("Not connected to server")
return
}
if b.ToneTest {
b.AddOutputLine("File playback is unavailable in tone test mode")
return
}
b.FileStreamMutex.Lock()
defer b.FileStreamMutex.Unlock()
@@ -319,7 +323,14 @@ func (b *Barnard) setTransmit(ui *uiterm.Ui, val int) {
b.Notify("micdown", "me", "")
b.Tx = false
b.UpdateGeneralStatus(" Idle ", false)
b.Stream.StopSource()
if b.ToneTest {
if b.toneTestStop != nil {
close(b.toneTestStop)
b.toneTestStop = nil
}
} else {
b.Stream.StopSource()
}
} else if b.Connected == false {
b.Notify("error", "me", "no tx while disconnected")
b.Tx = false
@@ -331,18 +342,28 @@ func (b *Barnard) setTransmit(ui *uiterm.Ui, val int) {
b.UpdateGeneralStatus("cannot transmit in muted channel", true)
} else {
b.Tx = true
err := b.Stream.StartSource(b.UserConfig.GetInputDevice())
if err != nil {
b.Notify("error", "me", err.Error())
b.UpdateGeneralStatus(err.Error(), true)
} else {
if b.ToneTest {
b.toneTestStop = make(chan struct{})
go StartToneGenerator(b.Client, b.toneTestStop)
b.Notify("micup", "me", "")
b.UpdateGeneralStatus(" Tx ", true)
} else {
err := b.Stream.StartSource(b.UserConfig.GetInputDevice())
if err != nil {
b.Notify("error", "me", err.Error())
b.UpdateGeneralStatus(err.Error(), true)
} else {
b.Notify("micup", "me", "")
b.UpdateGeneralStatus(" Tx ", true)
}
}
}
}
func (b *Barnard) OnMicVolumeDown(ui *uiterm.Ui, key uiterm.Key) {
if b.ToneTest {
return
}
b.Stream.SetMicVolume(-0.1, true)
b.UserConfig.SetMicVolume(b.Stream.GetMicVolume())
if err := b.UserConfig.SaveConfig(); err != nil {
@@ -351,6 +372,9 @@ func (b *Barnard) OnMicVolumeDown(ui *uiterm.Ui, key uiterm.Key) {
}
func (b *Barnard) OnMicVolumeUp(ui *uiterm.Ui, key uiterm.Key) {
if b.ToneTest {
return
}
b.Stream.SetMicVolume(0.1, true)
b.UserConfig.SetMicVolume(b.Stream.GetMicVolume())
if err := b.UserConfig.SaveConfig(); err != nil {