Parse an Ableton ASD clip file and its warp markers in Python. This module has been tested with.asd files saved with Ableton 9 and Ableton 10.
Note: Ableton Live 12 uses a different binary format that is not yet supported by this library.
pip install abletonparsing
To run the tests, you'll need to install additional dependencies:
# On macOSbrew install rubberband# On Ubuntu/Debiansudo apt-get install -y rubberband-cli# Install Python test dependenciespip install abletonparsing[test]# orpip install -e".[test]"# for development
Clip class:
- .loop_on - ( bool , READ/WRITE ) - Loop toggle is on
- .start_marker - ( float , READ/WRITE ) - Start marker in beats relative to 1.1.1
- .end_marker - ( float , READ/WRITE ) - End marker in beats relative to 1.1.1
- .loop_start - ( float , READ/WRITE ) - Loop start in beats relative to 1.1.1
- .loop_end - ( float , READ/WRITE ) - Loop end in beats relative to 1.1.1
- .hidden_loop_start - ( float , READ/WRITE ) - Hidden loop start in beats relative to 1.1.1
- .hidden_loop_end - ( float , READ/WRITE ) - Hidden loop end in beats relative to 1.1.1
- .warp_markers - ( list[WarpMarker] , READ/WRITE ) - List of warp markers
- .warp_on - ( bool , READ/WRITE ) - Warping is on
- .sr - ( float , READ/WRITE ) - Sample rate of audio data
WarpMarker class:
- .seconds - ( float , READ/WRITE ) - Position in seconds in the audio data.
- .beats - ( float , READ/WRITE ) - Position in "beats" (typically quarter note) relative to 1.1.1
Ifloop_on is false, thenloop_start will equal thestart_marker, andloop_end will equal theend_marker.
importabletonparsingimportlibrosaimportsoundfileassfimportpyrubberbandaspyrbbpm=130.audio_path='drums.wav'clip_path=audio_path+'.asd'audio_data,sr=librosa.load(audio_path,sr=None,mono=False)num_samples=audio_data.shape[1]clip=abletonparsing.Clip(clip_path,sr,num_samples)time_map=clip.get_time_map(bpm)# Time-stretch the audio to the requested bpm.output_audio=pyrb.timemap_stretch(audio_data.transpose(),sr,time_map)withsf.SoundFile('output.wav','w',sr,2,'PCM_24')asf:f.write(output_audio)