Fix issue #166 (synthesizing scores with pickup measures) #167
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Codecov ReportBase: 80.53% // Head: 81.17% // Increases project coverage by
Additional details and impacted files@@ Coverage Diff @@
## develop #167 +/- ##
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+ Coverage 80.53% 81.17% +0.63%
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Files 63 63
Lines 10313 10488 +175
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+ Hits 8306 8514 +208
+ Misses 2007 1974 -33
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| Potential extensions | ||
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| * allow for bpm to be a callable or an 2D array with columns (onset, bpm) |
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This pull request implements these extensions (now as part of the performance_notearray_from_score_notearray method below)
partitura/io/exportaudio.py
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| semitones, while "natural" will use natural ratios within an octave. | ||
| Otherwise it uses a callable. See `midi_pitch_to_natural_frequency` | ||
| and `midi_pitch_to_frequency` for more info on the "equal_temperament" | ||
| and "natural" tuning. |
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natural temperament is based on the reference pitch of A, this choice is not clearly documented and gives wrong results for many pieces where the base note should be different. I see two ways of fixing this, 1) using the midi_pitch_to_tempered_frequency function instead or 2) clearly documenting that this renders a version based on reference pitch A with interval ratios given in NATURAL_INTERVAL_RATIOS
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I added a symmetric 5-limit temperament table FIVE_LIMIT_INTERVAL_RATIOS
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The new changes reflect both suggestions:
- The function
midi_pitch_to_tempered_frequencyis now used instead ofmidi_pitch_to_natural_frequencyiftuning="natural" - The docstring explicitly states that the function computes intervals with respect to a reference pitch and that the
FIVE_LIMIT_INTERVAL_RATIOSare used by default.
This pull request contains the following changes
synthesizefunctionperformance_note_array_from_score_note_arraywhich allows for more flexibility converting score-like note arrays to performance-like note arrays (including adding extra features for non-constant tempo and velocity inperformance_from_part)