def __init__(self):
output_device = 'Apple Inc.: Built-in Output'
output_device_idx = None
dac = rt.RtAudio()
n_devices = dac.getDeviceCount()
for i in range(n_devices):
info = dac.getDeviceInfo(i)
#print(info)
if info['name'] == output_device:
output_device_idx = i
self.buffer_size = 256
oParams = {
'deviceId': output_device_idx,
'nChannels': 2,
'firstChannel': 0
}
dac.openStream(oParams, {}, 44100, self.buffer_size, self.callback)
dac.startStream()
self._idx = 0
t0 = time.time()
while True:
if time.time() - t0 > 2:
break
try:
dac.stopStream()
except:
pass
if dac.isStreamOpen():
dac.closeStream()
def __init__(self):
input_device = 'Apple Inc.: Built-in Microphone'
dac = rt.RtAudio()
input_device_idx = None
n_devices = dac.getDeviceCount()
for i in range(n_devices):
info = dac.getDeviceInfo(i)
#print(info)
if info['name'] == input_device:
input_device_idx = i
print(input_device_idx)
self.buffer_size = 512
oParams = {
'deviceId': input_device_idx,
'nChannels': 1,
'firstChannel': 0
}
dac.openStream({}, oParams, 48000, self.buffer_size, self.callback)
dac.startStream()
self.data = []
t0 = time.time()
while True:
if time.time() - t0 > 2:
break
try:
dac.stopStream()
except:
pass
if dac.isStreamOpen():
dac.closeStream()
samples = 0.5*np.cos(self.phase * self.freq)
# Ensure result is the right size!
assert samples.shape[0] == 256
assert samples.dtype == np.float32
# Use numpy array view to do a once-copy into memoryview
# (ie. we only do a single byte-wise copy of the final
# result into 'playback')
usamples = samples.view(dtype=np.uint8)
playback_array = np.array(playback, copy=False)
np.copyto(playback_array, usamples)
except ModuleNotFoundError:
print('Numpy not available, using struct.')
dac = rt.RtAudio()
n = dac.getDeviceCount()
print('Number of devices available: ', n)
for i in range(n):
try:
print(dac.getDeviceInfo(i))
except rt.RtError as e:
print(e)
print('Default output device: ', dac.getDefaultOutputDevice())
print('Default input device: ', dac.getDefaultInputDevice())
print('is stream open: ', dac.isStreamOpen())
#from pk.audio import media
import rtaudio
#wav = media.SndFile("/Users/jwp/ppDemos/BART/bang.wav")
dev = rtaudio.RtAudio()
print dev