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[py] add note2freq to midiconv.py
author
Paul Brossier
<piem@piem.org>
Mon, 29 Oct 2018 23:22:41 +0000
(
00:22
+0100)
committer
Paul Brossier
<piem@piem.org>
Mon, 29 Oct 2018 23:22:41 +0000
(
00:22
+0100)
python/lib/aubio/midiconv.py
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diff --git
a/python/lib/aubio/midiconv.py
b/python/lib/aubio/midiconv.py
index
ce58ddf
..
24b8395
100644
(file)
--- a/
python/lib/aubio/midiconv.py
+++ b/
python/lib/aubio/midiconv.py
@@
-4,7
+4,7
@@
__all__ = ['note2midi', 'midi2note', 'freq2note']
import sys
__all__ = ['note2midi', 'midi2note', 'freq2note']
import sys
-from ._aubio import freqtomidi
+from ._aubio import freqtomidi
, miditofreq
py3 = sys.version_info[0] == 3
if py3:
py3 = sys.version_info[0] == 3
if py3:
@@
-75,3
+75,26
@@
def freq2note(freq):
" convert frequency in Hz to nearest note name, e.g. [0, 22050.] -> [C-1, G9] "
nearest_note = int(freqtomidi(freq) + .5)
return midi2note(nearest_note)
" convert frequency in Hz to nearest note name, e.g. [0, 22050.] -> [C-1, G9] "
nearest_note = int(freqtomidi(freq) + .5)
return midi2note(nearest_note)
+
+def note2freq(note):
+ """Convert note name to corresponding frequency, in Hz.
+
+ Parameters
+ ----------
+ note : str
+ input note name
+
+ Returns
+ -------
+ freq : float [0, 23000[
+ frequency, in Hz
+
+ Example
+ -------
+ >>> aubio.note2freq('A4')
+ 440
+ >>> aubio.note2freq('A3')
+ 220.1
+ """
+ midi = note2midi(note)
+ return miditofreq(midi)