| """Compute pyin output for all monophonic stems in multitracks without bleed. |
| """ |
| from __future__ import print_function |
|
|
| import medleydb |
| from medleydb import download |
| from medleydb import TRACK_LIST_V1 |
| from medleydb import TRACK_LIST_V2 |
| from medleydb import TRACK_LIST_EXTRA |
| from medleydb import TRACK_LIST_BACH10 |
| import shutil |
| import sox |
| import tempfile |
|
|
| from medleydb.annotate.activation_conf import compute_activation_confidence |
| from medleydb.annotate.activation_conf import write_activations_to_csv |
|
|
| import os |
|
|
|
|
| def ensure_samplerate(audio_path): |
| samplerate = sox.file_info.sample_rate(audio_path) |
| if samplerate != 44100: |
| tfm = sox.Transformer() |
| tfm.rate(44100) |
| _, pyin_audio = tempfile.mkstemp(suffix='.wav') |
| tfm.build(audio_path, pyin_audio) |
| os.remove(audio_path) |
| shutil.move(pyin_audio, audio_path) |
|
|
|
|
| def main(): |
| full_list = ( |
| TRACK_LIST_EXTRA + TRACK_LIST_V2 + TRACK_LIST_V1 + TRACK_LIST_BACH10 |
| ) |
| for track_id in full_list: |
| print(track_id) |
| try: |
| mtrack = medleydb.MultiTrack(track_id) |
| if mtrack.has_bleed or os.path.exists(mtrack.activation_conf_fpath): |
| continue |
|
|
| for stem in mtrack.stems.values(): |
| print(stem.stem_idx) |
| download.download_stem(mtrack, stem.stem_idx) |
| ensure_samplerate(stem.audio_path) |
|
|
| activations, index_list = compute_activation_confidence(mtrack) |
| write_activations_to_csv( |
| mtrack, activations, index_list, debug=True |
| ) |
|
|
| download.purge_downloaded_files() |
| except: |
| print("Something failed...") |
|
|
|
|
| if __name__ == '__main__': |
| main() |
|
|
