26b997811a
p_ac.py : changed dutyCyclePct to a list, added real-timen note analysis and multi-pitch tests. Added keyboard.py, rt_note_analysis.py, plot_note_analysis.py, plot_all_note_durations.ipynb.
77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
import types
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import numpy as np
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from rms_analysis import audio_harm_rms
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from rms_analysis import audio_rms
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from rms_analysis import locate_peak_indexes
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from rms_analysis import measure_duration_ms
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class RT_Analyzer:
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def __init__(self):
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self.td_dur_ms = 0
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self.td_db = 0
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self.hm_dur_ms = 0
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self.hm_db = 0
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def analyze_note( self, audioDev, midi_pitch, begTimeMs, endTimeMs, anlArgD ):
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td_dur_ms = 0
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td_db = 0
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hm_dur_ms = 0
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hm_db = 0
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decay_pct = 50.0
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result = audioDev.linear_buffer()
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if result:
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sigV = result.value
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anlArgs = types.SimpleNamespace(**anlArgD)
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rmsDbV, rms_srate, binHz = audio_harm_rms( audioDev.srate, np.squeeze(sigV), anlArgs.rmsWndMs, anlArgs.rmsHopMs, anlArgs.dbRefWndMs, midi_pitch, anlArgs.harmCandN, anlArgs.harmN )
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pkIdxL = locate_peak_indexes( rmsDbV, rms_srate, [( begTimeMs, endTimeMs)] )
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if len(pkIdxL) > 0:
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end_idx = int(round(endTimeMs * rms_srate / 1000.0))
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if end_idx > pkIdxL[0]:
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hm_dur_ms = measure_duration_ms( rmsDbV, rms_srate, pkIdxL[0], end_idx, decay_pct )
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hm_db = rmsDbV[ pkIdxL[0] ]
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tdRmsDbV, rms0_srate = audio_rms( audioDev.srate, np.squeeze(sigV), anlArgs.rmsWndMs, anlArgs.rmsHopMs, anlArgs.dbRefWndMs )
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tdPkIdxL = locate_peak_indexes( tdRmsDbV, rms0_srate, [( begTimeMs, endTimeMs)] )
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if len(tdPkIdxL):
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end_idx = int(round(endTimeMs * rms0_srate / 1000.0))
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if end_idx > tdPkIdxL[0]:
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td_dur_ms = measure_duration_ms( tdRmsDbV, rms0_srate, tdPkIdxL[0], end_idx, decay_pct )
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td_db = tdRmsDbV[ tdPkIdxL[0] ]
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td_d_ms = td_dur_ms - self.td_dur_ms
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td_d_db = td_db - self.td_db
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hm_d_ms = hm_dur_ms - self.hm_dur_ms
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hm_d_db = hm_db - self.hm_db
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print("DUR: %5.2f %5.2f d:%5.2f %5.2f dB | %i %i d:%i %i ms" % (hm_db, td_db, hm_d_db, td_d_db, hm_dur_ms, td_dur_ms, hm_d_ms, td_d_ms) )
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self.td_dur_ms = td_dur_ms
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self.td_db = td_db
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self.hm_dur_ms = hm_dur_ms
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self.hm_db = hm_db
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