def getDevices():
"""Get a `list` of audio capture device (i.e. microphones) descriptors.
On Windows, only WASAPI devices are used.
Returns
-------
list
List of `AudioDevice` descriptors for suitable capture devices. If
empty, no capture devices have been found.
"""
try:
Microphone.enforceWASAPI = bool(prefs.hardware["audioForceWASAPI"])
except KeyError:
pass # use default if option not present in settings
# query PTB for devices
if Microphone.enforceWASAPI and sys.platform == 'win32':
allDevs = audio.get_devices(device_type=13)
else:
allDevs = audio.get_devices()
# make sure we have an array of descriptors
allDevs = [allDevs] if isinstance(allDevs, dict) else allDevs
# create list of descriptors only for capture devices
inputDevices = [
desc for desc in
[AudioDeviceInfo.createFromPTBDesc(dev) for dev in allDevs]
if desc.isCapture
]
return inputDevices
def getDevices(kind=None):
"""Returns a dict of dict of audio devices of specified `kind`
kind can be None, 'input' or 'output'
The dict keys are names, and items are dicts of properties
"""
if sys.platform == 'win32':
deviceTypes = 13 # only WASAPI drivers need apply!
else:
deviceTypes = None
devs = {}
if travisCI: # travis-CI testing does not have a sound device
return devs
else:
allDevs = audio.get_devices(device_type=deviceTypes)
# annoyingly query_devices is a DeviceList or a dict depending on number
if type(allDevs) == dict:
allDevs = [allDevs]
for ii, dev in enumerate(allDevs):
if kind and kind.startswith('in'):
if dev['NrInputChannels'] < 1:
continue
elif kind and kind.startswith('out'):
if dev['NrOutputChannels'] < 1:
continue
# we have a valid device so get its name
# newline characters must be removed
devName = dev['DeviceName'].replace('\r\n', '')
devs[devName] = dev
dev['id'] = ii
return devs
def getDevices(kind=None):
"""Returns a dict of dict of audio devices of specified `kind`
The dict keys are names and items are dicts of properties
"""
devs = {}
if travisCI: # travis-CI testing does not have a sound device
return devs
else:
allDevs = audio.get_devices(kind)
# annoyingly query_devices is a DeviceList or a dict depending on number
if type(allDevs) == dict:
allDevs = [allDevs]
for ii, dev in enumerate(allDevs):
# newline characters must be removed
devName = dev['name'].replace('\r\n', '')
devs[devName] = dev
dev['id'] = ii
return devs