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write .wav in background

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This commit is contained in:
Damien Elmes 2020-12-18 19:24:53 +10:00
parent 93eccd183f
commit e7d9056acd
1 changed files with 18 additions and 13 deletions
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31
qt/aqt/sound.py
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@ -612,21 +612,26 @@ class QtAudioInputRecorder(Recorder):
showWarning(f"recording failed: {err}")
return
# swallow the first 300ms to allow audio device to quiesce
wait = int(44100 * self.STARTUP_DELAY)
if len(self._buffer) <= wait:
return
self._buffer = self._buffer[wait:]
def write_file():
# swallow the first 300ms to allow audio device to quiesce
wait = int(44100 * self.STARTUP_DELAY)
if len(self._buffer) <= wait:
return
self._buffer = self._buffer[wait:]
# write out the wave file
wf = wave.open(self.output_path, "wb")
wf.setnchannels(self._format.channelCount())
wf.setsampwidth(self._format.sampleSize() // 8)
wf.setframerate(self._format.sampleRate())
wf.writeframes(self._buffer)
wf.close()
# write out the wave file
wf = wave.open(self.output_path, "wb")
wf.setnchannels(self._format.channelCount())
wf.setsampwidth(self._format.sampleSize() // 8)
wf.setframerate(self._format.sampleRate())
wf.writeframes(self._buffer)
wf.close()
super().stop(on_done)
def and_then(fut):
fut.result()
Recorder.stop(self, on_done)
self.mw.taskman.run_in_background(write_file, and_then)
# PyAudio recording