# analyze clarinet tone # print 'analyzing clarinet 4G# (%s)' % time.ctime(time.time()) a = loris.Analyzer( 390 ) a.setFreqDrift( 30 ) a.setAmpFloor( -80 ) cf = loris.AiffFile( os.path.join(path, 'clarinet.aiff') ) v = cf.samples() samplerate = cf.sampleRate() clar = a.analyze( v, samplerate ) print 'checking SDIF export/import' loris.exportSdif( 'clarinet.pytest.sdif', clar ) clar = loris.importSdif( 'clarinet.pytest.sdif' ) try: print 'making a bogus attempt at writing an Spc file' print 'WARNING: this will fail because the Partials are unchannelized' loris.exportSpc( 'bad_spc_file.pytest.spc', clar, 90 ) except: import sys print 'caught:', sys.exc_type, sys.exc_value loris.channelize( clar, loris.createFreqReference( clar, 415*.8, 415*1.2 ), 1 ) loris.distill( clar ) # just for fun, print out the average # frequency of the first partial in the # clarinet analysis:
def analyze_if_needed(self, aiff_file = None): if aiff_file and os.path.isfile(aiff_file[:-4]+'.sdif'):#is there a twin sdif analysis self.analysis = loris.importSdif(aiff_file[:-4]+'.sdif')#if so, use it else: self.analyze(aiff_file) return self
# analyze clarinet tone
#
print 'analyzing clarinet 4G# (%s)' % time.ctime(time.time())
a = loris.Analyzer(390)
a.setFreqDrift(30)
a.setAmpFloor(-80)
cf = loris.AiffFile(os.path.join(path, 'clarinet.aiff'))
v = cf.samples()
samplerate = cf.sampleRate()
clar = a.analyze(v, samplerate)
print 'checking SDIF export/import'
loris.exportSdif('clarinet.pytest.sdif', clar)
clar = loris.importSdif('clarinet.pytest.sdif')
try:
print 'making a bogus attempt at writing an Spc file --'
print 'this will fail because the Partials are unchannelized'
loris.exportSpc('bad_spc_file.pytest.spc', clar, 90)
except:
import sys
print 'caught:', sys.exc_type
print 'error is:', sys.exc_value
print 'OK, moving on!'
loris.channelize(clar, 415)
loris.distill(clar)
# just for fun, print out the average