Package: libtempo-py
LibTempoC++ / Python library for signal processing and tempo information extraction.CLIMP3, FLAC and WAV audio formats are supported.DownloadsExamplesMegadeth - Five MagicsLed Zeppelin - Stairway To HeavenDragonForce - Valley of the DamnedUsagelibtempo[audio]{OPTIONS}OPTIONS:

      -h, --help                        Display the help menu
      Basic
        -t[preferred_bpm],
        --preferred_bpm=[preferred_bpm]   (Default: 130) BPM around which the
                                          real bpm will be chosen.
        --bpm_rounding_precision=[bpm_rounding_precision]
                                          (Default: 0.500000) Precision of the
                                          BPM before correction..
        -s[smooth_length],
        --smooth_length=[smooth_length]   (Default: 20.000000) Length in seconds
                                          over which the tempogram will be
                                          stabilized to extract a steady tempo.
        -l[min_section_length],
        --min_section_length=[min_section_length]
                                          (Default: 10.000000) Minimum length
                                          for a tempo section in seconds.
        --max_section_length=[max_section_length]
                                          (Default: 40.000000) Maximum section
                                          length in seconds after which section
                                          is split in half.
      Advanced
        --bpm_window=[bpm_window]         BPM range which to check for tempo
                                          peaks.
        -m[tempo_multiples...],
        --tempo_multiples=[tempo_multiples...]
                                          Tempo multiples to consider when
                                          searching for correct offset
        --ref_tempo=[ref_tempo]           (Default: 60) Reference tempo defining
                                          the partition of BPM into tempo
                                          octaves for calculating cyclic
                                          tempogram.
        --tempo_window=[tempo_window]     (Default: 8) Analysis window length in
                                          seconds for calculating tempogram.
        --octave_divider=[octave_divider] (Default: 120) Number of tempo classes
                                          used for representing a tempo octave.
                                          This parameter controls the
                                          dimensionality of cyclic tempogram.
        --triplet_weight=[triplet_weight] (Default: 3.000000) Weight of the
                                          triplet intensity which will be adeed
                                          to its base intensity.
        --bpm_doubt_window=[bpm_doubt_window]
                                          (Default: 2.000000) Window around
                                          candidate bpm which to search for a
                                          more fine and correct bpm.
        --bpm_doubt_step=[bpm_doubt_step] (Default: 0.100000) Steps which to
                                          take inside the doubt window to fine
                                          tune the bpm.
        --click_track_subdivision=[click_track_subdivision]
                                          (Default: 8) Click subdivision for the
                                          click track.
      Output Flags
        -c[generate_click_track],
        --generate_click_track=[generate_click_track]
                                          (Default: 1) Wether or not a click
                                          track should be generated
        -o, --osu                         Wether or not to generate tempo data
                                          in osu format.
        --viz                             Saves a html file with useful graphs.
        -d, --dump                        Dump generated tempograms and novelty
                                          curves into a file.
      audio                             Audio file to extract tempo of.
      "--" can be used to terminate flag options and force all following
      arguments to be treated as positional optionsLibraryBuildingDocumentationFlaws / TODO'sBPM calculated is the percieved bpm. There is also real bpm which may be twice as high. (I would love to hear any suggestions how this could be helped)Pars where bpm is constantly changed are rounded away when making secions.Sometimes offset might be shifted by a 1/4th or 1/8th note.ReferencesTempogram & novelty curve calculation[1][2][3]Modified signal resampling code