def _init(self):
self.buffer = Buffer(self.audio_source.get_sample_rate(),
buffer_duration=1.0)
self.spectrum_freq = self.audio_source.get_sample_rate(
) * np.fft.rfftfreq(self.buffer.buffer_len)
self.spectrum_semitones_from_c0 = np.log2(
self.spectrum_freq / FREQ_C0) * 12.0
def _init(self):
self.spectrum_analyzer = SpectrumAnalyzer(
self.audio_source.get_sample_rate())
self.pitch_tracker = PitchTracker()
self.buffer = Buffer(self.audio_source.get_sample_rate(),
buffer_duration=20.0)
self.note_tracker = NoteTracker()
class NotesTranscriber(SingleSourceApplication):
def __init__(self, audio_source, update_output=update_console_output, **kvargs):
super().__init__(audio_source, update_output, **kvargs)
def _init(self):
self.rms_processor = RmsProcessor()
self.sound_splitter = SoundSplitter()
self.band_peak_finder = BandPeakFinder(self.audio_source.get_sample_rate(), bands=SIX_STRINGS_GUITAR_BANDS)
self.buffer = Buffer(self.audio_source.get_sample_rate(), buffer_duration=20.0)
def _run_once(self, signals):
signals.update(self.buffer.process(**signals))
signals.update(self.rms_processor.process(**signals))
signals.update(self.sound_splitter.process(**signals))
signals.update(self.band_peak_finder.process(**self.remap(signals, {"source_signal": "split_sound"})))
class SongAnalyzer(SingleSourceApplication):
def __init__(self,
audio_source,
update_output=update_console_output,
**kvargs):
super().__init__(audio_source, update_output, **kvargs)
def _init(self):
self.buffer = Buffer(self.audio_source.get_sample_rate(),
buffer_duration=20.0)
self.harmony_analyzer = HarmonyAnalyzer(
self.audio_source.get_sample_rate())
def _run_once(self, signals):
signals.update(self.buffer.process(**signals))
signals.update(self.harmony_analyzer.process(**signals))
class DefaultPlayerApplication(SingleSourceApplication):
def __init__(self, audio_source, update_output, **kvargs):
super().__init__(audio_source, update_output, **kvargs)
def _init(self):
self.buffer = Buffer(self.audio_source.get_sample_rate(),
buffer_duration=1.0)
self.spectrum_freq = self.audio_source.get_sample_rate(
) * np.fft.rfftfreq(self.buffer.buffer_len)
self.spectrum_semitones_from_c0 = np.log2(
self.spectrum_freq / FREQ_C0) * 12.0
def _run_once(self, signals):
signals.update(self.buffer.process(**signals))
spectrum = np.abs(np.fft.rfft(signals["buffered_signal"]))
signals.update({
"spectrum":
spectrum,
"spectrum_freq":
self.spectrum_freq,
"spectrum_semitones_from_c0":
self.spectrum_semitones_from_c0
})
class NotesTranscriber(SingleSourceApplication):
def __init__(self,
audio_source,
update_output=update_console_output,
monophonic=False,
**kvargs):
super().__init__(audio_source, update_output, **kvargs)
self.monophonic = monophonic
def _init(self):
self.spectrum_analyzer = SpectrumAnalyzer(
self.audio_source.get_sample_rate())
self.pitch_tracker = PitchTracker()
self.buffer = Buffer(self.audio_source.get_sample_rate(),
buffer_duration=20.0)
self.note_tracker = NoteTracker()
def _run_once(self, signals):
signals.update(self.buffer.process(**signals))
signals.update(self.spectrum_analyzer.process(**signals))
if self.monophonic:
signals["pitches"] = signals["pitches"][0:1]
signals.update(self.pitch_tracker.process(**signals))
signals.update(self.note_tracker.process(**signals))
def _init(self):
self.buffer = Buffer(self.audio_source.get_sample_rate(),
buffer_duration=20.0)
self.harmony_analyzer = HarmonyAnalyzer(
self.audio_source.get_sample_rate())
def _init(self):
self.rms_processor = RmsProcessor()
self.sound_splitter = SoundSplitter()
self.band_peak_finder = BandPeakFinder(self.audio_source.get_sample_rate(), bands=SIX_STRINGS_GUITAR_BANDS)
self.buffer = Buffer(self.audio_source.get_sample_rate(), buffer_duration=20.0)