ls /home/andres/Documents/src/marsyas/build/bin

import sys
sys.path.append('/home/andres/Documents/src/marsyas/build/bin')

!onsets -h

!onsets 'sources/Dire Straits - Walk of life.wav' > wof_onsets.txt

f = open('wof_onsets.txt')
lines = f.readlines()
print lines[:5]
print lines[-5:]

onsets = [float(val) for val in lines[3:-1]]

onsets[0], onsets[-1]

plot(diff(onsets))

plot(diff(onsets)[:-1])

plot(diff(onsets)[:-1])
hlines(diff(onsets)[:-1].mean(), 300, 500)
hlines(diff(onsets)[:-1].mean()* 2, 300, 500)
hlines(diff(onsets)[:-1].mean()/ 2, 300, 500)
xlim(300, 500)

!mkcollection -c sources.mf -l sources "/home/andres/Documents/01 Documentos/06 Santa Barbara/Lectures/240E/ipython/sources/"

!bextract -h

!bextract -fe -mfcc -w mfcc.arff sources.mf

ls

import arff

mfccs = arff.load('MARSYAS_EMPTYmfcc.arff')

mfccs

mfccs = list(mfccs)

len(mfccs)

mfccs[0]

mfccs = []
for row in arff.load('MARSYAS_EMPTYmfcc.arff'):
    mfccs.append(list(row)[1:14])

imshow(array(mfccs).T, aspect='auto', interpolation='nearest')

!bextract sources.mf -w ms.arff -p ms.mpl -cl GS

ls

!sfplugin -h

!sfplugin -pl ms.mpl sources/superstition.wav

!mkcollection -c sources2.mf -l sources2 "/home/andres/Documents/01 Documentos/06 Santa Barbara/Lectures/240E/ipython/sources2/"

!bextract sources.mf sources2.mf -p ms.mpl -cl GS

!sfplugin -pl ms.mpl sources2/turangalila_excerpt.wav

!sfplugin -pl ms.mpl sources/passport.wav

import marsyas

mng = marsyas.MarSystemManager()
fnet = mng.create("Series", "featureNetwork")

# functional short cuts to speed up typing 
create = mng.create
add = fnet.addMarSystem 
link = fnet.linkControl
upd = fnet.updControl
get  = fnet.getControl

# Add the MarSystems 
add(create("SoundFileSource", "src"))
add(create("TimbreFeatures", "featExtractor"))
add(create("TextureStats", "tStats"))
add(create("Annotator", "annotator"))
add(create("WekaSink", "wsink"))

# link the controls to coordinate things
link("mrs_string/filename", "SoundFileSource/src/mrs_string/filename")
link("mrs_bool/hasData", "SoundFileSource/src/mrs_bool/hasData")
link("WekaSink/wsink/mrs_string/currentlyPlaying","SoundFileSource/src/mrs_string/currentlyPlaying")
link("Annotator/annotator/mrs_natural/label", "SoundFileSource/src/mrs_natural/currentLabel")
link("SoundFileSource/src/mrs_natural/nLabels", "WekaSink/wsink/mrs_natural/nLabels")

# update controls to setup things 
upd("TimbreFeatures/featExtractor/mrs_string/disableTDChild", marsyas.MarControlPtr.from_string("all"))
upd("TimbreFeatures/featExtractor/mrs_string/disableLPCChild", marsyas.MarControlPtr.from_string("all"))
upd("TimbreFeatures/featExtractor/mrs_string/disableSPChild", marsyas.MarControlPtr.from_string("all"))
upd("TimbreFeatures/featExtractor/mrs_string/enableSPChild", marsyas.MarControlPtr.from_string("MFCC/mfcc"))
upd("mrs_string/filename", marsyas.MarControlPtr.from_string("sources.mf"))
upd("WekaSink/wsink/mrs_string/labelNames", 
			  get("SoundFileSource/src/mrs_string/labelNames"))
upd("WekaSink/wsink/mrs_string/filename", marsyas.MarControlPtr.from_string("mfcc_python.arff"))

# do the processing extracting MFCC features and writing to weka file 
previouslyPlaying = ""
while get("SoundFileSource/src/mrs_bool/hasData").to_bool():
	currentlyPlaying = get("SoundFileSource/src/mrs_string/currentlyPlaying").to_string()
	if (currentlyPlaying != previouslyPlaying):
		print "Processing: " +  get("SoundFileSource/src/mrs_string/currentlyPlaying").to_string()
		
	fnet.tick()
	
	previouslyPlaying = currentlyPlaying

mfccs = []
for row in arff.load('mfcc_python.arff'):
    mfccs.append(list(row)[1:14])

imshow(array(mfccs).T, interpolation='nearest', aspect='auto')
colorbar()