def testDecreaseVolume(self):
'''Test Decrease Volume'''
f = SOUNDS + 'Blip.wav'
media.setTestMediaFolder()
sound = media.makeSound(f)
# samples = media.getSamples(sound)
i = 0
counter = 0
print "changing"
# while i <= media.getLength(sound):
for sample in media.getSamples(sound):
value = media.getSample(sample)
media.setSample(sample, (value * 0.5))
print "comparing"
original = media.makeSound(f)
counter = 0
while counter < media.getLength(sound):
if(int(media.getSampleValueAt(sound, counter)) != int(media.getSampleValueAt(original, counter) * 0.5)):
self.fail("Sample %s not decreased properly" % counter)
# print "%s != %s at %s" %
# (media.getSampleValueAt(sound,counter),
# (media.getSampleValueAt(original,counter)*2.0), counter)
counter += 1
def testNormalize(self):
'''Test Normalize Volume'''
largest = 0
f = 'Blip.wav'
media.setTestMediaFolder()
sound = media.makeSound(f)
#for sample in media.getSamples(sound):
counter = 0
while counter < media.getLength(sound):
sample = media.getSampleObjectAt(sound, counter)
largest = max(largest, abs(media.getSample(sample)), media.getSample(sample))
counter += 1
amplification = 32767.0 / largest
counter = 0
while counter < media.getLength(sound):
sample = media.getSampleObjectAt(sound, counter)
louder = amplification * media.getSample(sample)
media.setSample(sample, louder)
counter += 1
original = media.makeSound(f)
counter = 0
while counter < media.getLength(sound):
if( int(media.getSampleValueAt(sound,counter)) != int(media.getSampleValueAt(original,counter)*amplification)):
self.fail("Sample %s not normalized properly" % counter)
#print "%s != %s at %s" % (media.getSampleValueAt(sound,counter), (media.getSampleValueAt(original,counter)*amplification), counter)
counter += 1
def testIncreaseVol(self):
'''Test Increase Volume'''
f = SOUNDS + 'Blip.wav'
media.setTestMediaFolder()
sound = media.makeSound(f)
samples = media.getSamples(sound)
i = 0
while i < media.getLength(sound):
# for sample in media.getSamples(sound):
value = media.getSampleValueAt(sound, i)
media.setSample(media.getSampleObjectAt(sound, i), (value * 2.0))
i = i + 1
original = media.makeSound(f)
counter = 0
while counter < media.getLength(sound):
newval = int(
round(media.getSampleValueAt(original, counter) * 2.0))
if (newval > 32767):
newval = 32767
if(newval < -32768):
newval = -32768
if(media.getSampleValueAt(sound, counter) != newval):
self.fail("Sample %s not increased properly" % counter)
counter += 1
def testDecreaseVolume(self):
'''Test Decrease Volume'''
f = SOUNDS + 'Blip.wav'
media.setTestMediaFolder()
sound = media.makeSound(f)
# samples = media.getSamples(sound)
i = 0
counter = 0
print "changing"
# while i <= media.getLength(sound):
for sample in media.getSamples(sound):
value = media.getSample(sample)
media.setSample(sample, (value * 0.5))
print "comparing"
original = media.makeSound(f)
counter = 0
while counter < media.getLength(sound):
if (int(media.getSampleValueAt(sound, counter)) != int(
media.getSampleValueAt(original, counter) * 0.5)):
self.fail("Sample %s not decreased properly" % counter)
# print "%s != %s at %s" %
# (media.getSampleValueAt(sound,counter),
# (media.getSampleValueAt(original,counter)*2.0), counter)
counter += 1
def testIncreaseVol(self):
'''Test Increase Volume'''
f = SOUNDS + 'Blip.wav'
media.setTestMediaFolder()
sound = media.makeSound(f)
samples = media.getSamples(sound)
i = 0
while i < media.getLength(sound):
# for sample in media.getSamples(sound):
value = media.getSampleValueAt(sound, i)
media.setSample(media.getSampleObjectAt(sound, i), (value * 2.0))
i = i + 1
original = media.makeSound(f)
counter = 0
while counter < media.getLength(sound):
newval = int(round(
media.getSampleValueAt(original, counter) * 2.0))
if (newval > 32767):
newval = 32767
if (newval < -32768):
newval = -32768
if (media.getSampleValueAt(sound, counter) != newval):
self.fail("Sample %s not increased properly" % counter)
counter += 1
def testNormalize(self):
'''Test Normalize Volume'''
largest = 0
f = 'Blip.wav'
media.setTestMediaFolder()
sound = media.makeSound(f)
#for sample in media.getSamples(sound):
counter = 0
while counter < media.getLength(sound):
sample = media.getSampleObjectAt(sound, counter)
largest = max(largest, abs(media.getSample(sample)),
media.getSample(sample))
counter += 1
amplification = 32767.0 / largest
counter = 0
while counter < media.getLength(sound):
sample = media.getSampleObjectAt(sound, counter)
louder = amplification * media.getSample(sample)
media.setSample(sample, louder)
counter += 1
original = media.makeSound(f)
counter = 0
while counter < media.getLength(sound):
if (int(media.getSampleValueAt(sound, counter)) != int(
media.getSampleValueAt(original, counter) *
amplification)):
self.fail("Sample %s not normalized properly" % counter)
#print "%s != %s at %s" % (media.getSampleValueAt(sound,counter), (media.getSampleValueAt(original,counter)*amplification), counter)
counter += 1
def testMedia(self):
f = SOUNDS + "preamble.wav"
media.setTestMediaFolder()
sound = media.makeSound(f)
self.assertEquals(sound.getLength(), 421110)
#self.assertEquals(media.getSamples(sound), 421110)
self.assertEquals(media.getSampleValueAt(sound, 0), 36)
self.assertEquals(media.getSampleValueAt(sound, 1), 29)
# self.assertEquals(media.getLength(sound),220568)
self.assertEquals(media.getSamplingRate(sound), 22050.0)
self.assertEquals(media.getSampleValueAt(sound, 220567), 44)
def testMedia(self):
f = SOUNDS + "preamble.wav"
media.setTestMediaFolder()
sound = media.makeSound(f)
self.assertEquals(sound.getLength(), 421110)
#self.assertEquals(media.getSamples(sound), 421110)
self.assertEquals(media.getSampleValueAt(sound, 0), 36)
self.assertEquals(media.getSampleValueAt(sound, 1), 29)
# self.assertEquals(media.getLength(sound),220568)
self.assertEquals(media.getSamplingRate(sound), 22050.0)
self.assertEquals(media.getSampleValueAt(sound, 220567), 44)