Changeset 6f944b5 for python/lib/aubio/midiconv.py

Timestamp:

Oct 30, 2018, 12:22:41 AM (5 years ago)

Author:

Paul Brossier <piem@piem.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master

Children:

e9a4402

Parents:

1f07bdd

Message:

[py] add note2freq to midiconv.py

File:

• python/lib/aubio/midiconv.py (modified) (2 diffs)

python/lib/aubio/midiconv.py

@@ -5 +5 @@
 
 import sys
-from ._aubio import freqtomidi
+from ._aubio import freqtomidi, miditofreq
 
 py3 = sys.version_info[0] == 3
@@ -76 +76 @@
     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)