def get_sample_size(self, format):
"""
Returns the size (in bytes) for the specified
sample `format` (a |PaSampleFormat| constant).
:param format: A |PaSampleFormat| constant.
:raises ValueError: Invalid specified `format`.
:rtype: integer
"""
return pa.get_sample_size(format)
def get_sample_size(self, format):
"""
Returns the size (in bytes) for the specified
sample `format` (a |PaSampleFormat| constant).
:param format: A |PaSampleFormat| constant.
:raises ValueError: Invalid specified `format`.
:rtype: integer
"""
return pa.get_sample_size(format)
def get_sample_size(format):
"""
Returns the size (in bytes) for the specified
sample `format` (a `PaSampleFormat` constant).
:param `format`:
PortAudio sample format constant `PaSampleFormat`.
:raises ValueError: Invalid specified `format`.
:rtype: int
"""
return pa.get_sample_size(format)
def get_sample_size(format):
"""
Returns the size (in bytes) for the specified
sample `format` (a `PaSampleFormat` constant).
:param `format`:
PortAudio sample format constant `PaSampleFormat`.
:raises ValueError: Invalid specified `format`.
:rtype: int
"""
return pa.get_sample_size(format)
def __init__(self, channels: int = 1,
sample_format: int = PA_INT16,
sample_rate: int = 0):
msg = 'Param "channels" ({}) must be a positive integer greater than 1'.format(channels)
assert channels is not None and isinstance(channels, int) and channels > 0, msg
if sample_format not in PA_FORMATS:
formats = ', '.join([str(it) for it in PA_FORMATS])
msg = 'Param "sample_format" ({}) must be one of: [{}]'.format(sample_format, formats)
assert sample_format in PA_FORMATS, msg
msg = 'Param "sample_rate" ({}) must be a positive integer'.format(sample_rate)
assert (sample_rate is not None and
isinstance(sample_rate, (float, int)) and
sample_rate > 0), msg
sample_width = pa.get_sample_size(sample_format)
msg = 'Value "sample_width" ({}) must be integer between 1 and 4 inclusive'
assert isinstance(sample_width, int) and 1 <= sample_width <= 4, msg.format(sample_width)
self._channels = channels
self._sample_format = sample_format
self._sample_rate = int(sample_rate)
self._sample_width = sample_width
print "* starting stream"
_portaudio.start_stream(stream)
print "* recording"
all = []
for i in range(0, 44100 / chunk * RECORD_SECONDS):
data = _portaudio.read_stream(stream, chunk)
all.append(data)
print "* stopping stream"
_portaudio.stop_stream(stream)
print "* closing stream"
_portaudio.close(stream)
# match all initialize() with terminate() calls
_portaudio.terminate()
# write data to WAVE file
data = ''.join(all)
wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(_portaudio.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(data)
wf.close()
