ref: d3b1eb196325b80ad269ca74456b8f08d1ea4f27
parent: f1198eff4b34b29bc4d6bdd5e3c1e03d5a8d068e
author: Paul Brossier <piem@piem.org>
date: Fri Jul 27 05:28:07 EDT 2012
demo_tss.py: added simple tss demo
--- /dev/null
+++ b/interfaces/python/demo_tss.py
@@ -1,0 +1,35 @@
+#! /usr/bin/python
+
+import sys
+from aubio import source, sink, pvoc, tss
+
+if __name__ == '__main__':
+ if len(sys.argv) < 2:
+ print 'usage: %s <inputfile> <outputfile_transient> <outputfile_steady>' % sys.argv[0]
+ sys.exit(1)
+
+ samplerate = 44100
+ win_s = 512 # fft size
+ hop_s = win_s / 2 # block size
+ threshold = 0.26
+
+ f = source(sys.argv[1], samplerate, hop_s)
+ g = sink(sys.argv[2], samplerate)
+ h = sink(sys.argv[3], samplerate)
+
+ pv = pvoc(win_s, hop_s) # phase vocoder
+ pw = pvoc(win_s, hop_s) # another phase vocoder
+ t = tss(win_s, hop_s) # transient steady state separation
+
+ t.set_threshold(threshold)
+
+ read = hop_s
+
+ while read:
+ samples, read = f() # read file
+ spec = pv(samples) # compute spectrum
+ trans_spec, stead_spec = t(spec) # transient steady-state separation
+ transients = pv.rdo(trans_spec) # overlap-add synthesis of transients
+ steadstate = pw.rdo(stead_spec) # overlap-add synthesis of steady states
+ g(transients, read) # write transients to output
+ h(steadstate, read) # write steady states to output