def Initialize(self, indim, outdim):
self.warp = 1000.0 # let the samples flowing into the ring buffer set the pace
self.eegfs = self.samplingrate()
self.hwfs = int(self.params['HardwareSamplingRate'])
self.chunk = SigTools.msec2samples(
float(self.params['HardwareChunkMsec']), self.hwfs)
ringsize = SigTools.msec2samples(
float(self.params['NIABufferSizeMsec']), self.hwfs)
self.ring = SigTools.ring(ringsize, indim[0])
self.ring.allow_overflow = True
self.nominal['HardwareSamplesPerPacket'] = SigTools.msec2samples(
self.nominal['SecondsPerPacket'] * 1000.0, self.hwfs)
cutoff = float(self.params['DSFilterFreqFactor']) * self.eegfs / 2.0
order = int(self.params['DSFilterOrder'])
if order > 0 and cutoff > 0.0:
self.filter = SigTools.causalfilter(
freq_hz=cutoff,
samplingfreq_hz=self.hwfs,
order=order,
type='lowpass') #, method=SigTools.firdesign)
else:
self.filter = None
self.dsind = numpy.linspace(0.0,
self.nominal['HardwareSamplesPerPacket'],
self.nominal['SamplesPerPacket'] + 1,
endpoint=True)
self.dsind = numpy.round(self.dsind).astype(numpy.int).tolist()
self._threads['listen'].post('start')
self._threads['listen'].read('ready', wait=True, remove=True)
self._check_threads()
def Initialize(self, indim, outdim):
self.warp = 1000.0 # let the audio samples flowing into the ring buffer set the pace
self.eegfs = self.samplingrate()
self.audiofs = int(self.params['AudioSamplingRate'])
self.audiobits = int(self.params['AudioBitDepth'])
self.audiochunk = WavTools.msec2samples(float(self.params['AudioChunkMsec']), self.audiofs)
self.audiochannels = int(self.params['NumberOfAudioChannels'])
self.use_env = int(self.params['UseAudioEnvelope'])
ringsize = WavTools.msec2samples(float(self.params['AudioBufferSizeMsec']), self.audiofs)
self.ring = SigTools.ring(ringsize, self.audiochannels)
self.ring.allow_overflow = True
self.nominal['AudioSamplesPerPacket'] = WavTools.msec2samples(self.nominal['SecondsPerPacket']*1000.0, self.audiofs)
self.dsind = numpy.linspace(0.0, self.nominal['AudioSamplesPerPacket'], self.nominal['SamplesPerPacket']+1, endpoint=True)
self.dsind = numpy.round(self.dsind).astype(numpy.int).tolist()
self._threads['listen'].post('start')
self._threads['listen'].read('ready', wait=True, remove=True)
self._check_threads()
def Initialize(self, indim, outdim):
self.warp = 1000.0 # let the samples flowing into the ring buffer set the pace
self.eegfs = self.samplingrate()
self.hwfs = int(self.params['HardwareSamplingRate'])
self.chunk = SigTools.msec2samples(float(self.params['HardwareChunkMsec']), self.hwfs)
ringsize = SigTools.msec2samples(float(self.params['NIABufferSizeMsec']), self.hwfs)
self.ring = SigTools.ring(ringsize, indim[0])
self.ring.allow_overflow = True
self.nominal['HardwareSamplesPerPacket'] = SigTools.msec2samples(self.nominal['SecondsPerPacket']*1000.0, self.hwfs)
cutoff = float(self.params['DSFilterFreqFactor']) * self.eegfs / 2.0
order = int(self.params['DSFilterOrder'])
if order > 0 and cutoff > 0.0:
self.filter = SigTools.causalfilter(freq_hz=cutoff, samplingfreq_hz=self.hwfs, order=order, type='lowpass') #, method=SigTools.firdesign)
else:
self.filter = None
self.dsind = numpy.linspace(0.0, self.nominal['HardwareSamplesPerPacket'], self.nominal['SamplesPerPacket']+1, endpoint=True)
self.dsind = numpy.round(self.dsind).astype(numpy.int).tolist()
self._threads['listen'].post('start')
self._threads['listen'].read('ready', wait=True, remove=True)
self._check_threads()
def Initialize(self, indim, outdim):
self.warp = 1000.0 # let the audio samples flowing into the ring buffer set the pace
self.eegfs = self.samplingrate()
self.audiofs = int(self.params['AudioSamplingRate'])
self.audiobits = int(self.params['AudioBitDepth'])
self.audiochunk = WavTools.msec2samples(
float(self.params['AudioChunkMsec']), self.audiofs)
self.audiochannels = int(self.params['NumberOfAudioChannels'])
self.use_env = int(self.params['UseAudioEnvelope'])
ringsize = WavTools.msec2samples(
float(self.params['AudioBufferSizeMsec']), self.audiofs)
self.ring = SigTools.ring(ringsize, self.audiochannels)
self.ring.allow_overflow = True
self.nominal['AudioSamplesPerPacket'] = WavTools.msec2samples(
self.nominal['SecondsPerPacket'] * 1000.0, self.audiofs)
self.dsind = numpy.linspace(0.0,
self.nominal['AudioSamplesPerPacket'],
self.nominal['SamplesPerPacket'] + 1,
endpoint=True)
self.dsind = numpy.round(self.dsind).astype(numpy.int).tolist()
self._threads['listen'].post('start')
self._threads['listen'].read('ready', wait=True, remove=True)
self._check_threads()
