File: demo_notes.py

package info (click to toggle)
aubio 0.4.9-5
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 3,720 kB
  • sloc: python: 20,447; ansic: 20,127; makefile: 348; sh: 232
file content (37 lines) | stat: -rwxr-xr-x 877 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
#! /usr/bin/env python

import sys
from aubio import source, notes

if len(sys.argv) < 2:
    print("Usage: %s <filename> [samplerate]" % sys.argv[0])
    sys.exit(1)

filename = sys.argv[1]

downsample = 1
samplerate = 44100 // downsample
if len( sys.argv ) > 2: samplerate = int(sys.argv[2])

win_s = 512 // downsample # fft size
hop_s = 256 // downsample # hop size

s = source(filename, samplerate, hop_s)
samplerate = s.samplerate

tolerance = 0.8

notes_o = notes("default", win_s, hop_s, samplerate)

print("%8s" % "time","[ start","vel","last ]")

# total number of frames read
total_frames = 0
while True:
    samples, read = s()
    new_note = notes_o(samples)
    if (new_note[0] != 0):
        note_str = ' '.join(["%.2f" % i for i in new_note])
        print("%.6f" % (total_frames/float(samplerate)), new_note)
    total_frames += read
    if read < hop_s: break