def test_Limiter_Recorder_Overlap_Deco_rewind_and_read(self):
# Use arbitrary valid block_size and hop_size
block_size = 5
hop_size = 4
ads = ADSFactory.ads(
data_buffer=self.signal,
sampling_rate=16,
sample_width=2,
channels=1,
max_time=0.80,
block_size=block_size,
hop_size=hop_size,
record=True,
)
# Read all available data overlapping blocks
ads.open()
i = 0
while True:
block = ads.read()
if block is None:
break
i += 1
ads.rewind()
# Build a BufferAudioSource
audio_source = BufferAudioSource(self.signal, ads.sampling_rate,
ads.sample_width, ads.channels)
audio_source.open()
# Compare all blocks read from OverlapADS to those read
# from an audio source with a manual position setting
for j in range(i):
tmp = audio_source.read(block_size)
block = ads.read()
self.assertEqual(
block,
tmp,
"Unexpected block '{}' (N={}) read from OverlapADS".format(
block, i),
)
audio_source.position = (j + 1) * hop_size
ads.close()
audio_source.close()
def test_Limiter_Recorder_Overlap_Deco_rewind_and_read(self):
# Use arbitrary valid block_size and hop_size
block_size = 1600
hop_size = 400
ads = ADSFactory.ads(
audio_source=self.audio_source,
max_time=1.50,
block_size=block_size,
hop_size=hop_size,
record=True,
)
# Read all available data overlapping blocks
ads.open()
i = 0
while True:
block = ads.read()
if block is None:
break
i += 1
ads.rewind()
# Read all data from file and build a BufferAudioSource
fp = wave.open(dataset.one_to_six_arabic_16000_mono_bc_noise, "r")
wave_data = fp.readframes(fp.getnframes())
fp.close()
audio_source = BufferAudioSource(wave_data, ads.sampling_rate,
ads.sample_width, ads.channels)
audio_source.open()
# Compare all blocks read from OverlapADS to those read
# from an audio source with a manual position setting
for j in range(i):
tmp = audio_source.read(block_size)
self.assertEqual(
ads.read(),
tmp,
"Unexpected block (N={0}) read from OverlapADS".format(i),
)
audio_source.position = (j + 1) * hop_size
ads.close()
audio_source.close()
def test_Overlap_Deco_read(self):
# Use arbitrary valid block_size and hop_size
block_size = 1714
hop_size = 313
ads = ADSFactory.ads(
audio_source=self.audio_source,
block_size=block_size,
hop_size=hop_size,
)
# Read all available data overlapping blocks
ads.open()
ads_data = []
while True:
block = ads.read()
if block is None:
break
ads_data.append(block)
ads.close()
# Read all data from file and build a BufferAudioSource
fp = wave.open(dataset.one_to_six_arabic_16000_mono_bc_noise, "r")
wave_data = fp.readframes(fp.getnframes())
fp.close()
audio_source = BufferAudioSource(wave_data, ads.sampling_rate,
ads.sample_width, ads.channels)
audio_source.open()
# Compare all blocks read from OverlapADS to those read
# from an audio source with a manual position setting
for i, block in enumerate(ads_data):
tmp = audio_source.read(block_size)
self.assertEqual(
block,
tmp,
"Unexpected block (N={0}) read from OverlapADS".format(i),
)
audio_source.position = (i + 1) * hop_size
audio_source.close()
