'default_low_input_latency', 'default_low_output_latency'ĭefault latency values for interactive performance. The maximum number of input/output channels supported by theĭevice. 'max_input_channels', 'max_output_channels' Query_hostapis() to get information about a host API. The dictionaries have the following keys: 'name' No arguments were specified – a DeviceList containing one 'output', a single dictionary is returned with informationĪbout the default input or output device, respectively.Ī dictionary with information about the given device or – if If device is not specified and kind is 'input' or If specified, information about only the given device is Numeric device ID or device name substring(s). To find the default input/output device(s), use vice. Information and capabilities of PortAudio devices.ĭevices may support input, output or both input and output. Return information about available devices.

query_devices ( device=None, kind=None ) ¶ The last invocation of play(), rec() or playrec(), This applies only to streams created by calls to play(), rec()Īn OutputStream, InputStream or Stream associated with out ( numpy.ndarray or subclass, optional) –Īll parameters of Stream – except channels, dtype,.Playback/recording in the background), if True, wait until If False (the default), return immediately (but continue See the parameter mapping of rec() and play(), input_mapping, output_mapping ( array_like, optional) –.

The output data type is obtained from data.dtype anyway. If dtype is not specified, it is taken from data.dtype The number of output channels is obtained from data.shape. Simultaneous playback and recording of NumPy arrays.

playrec ( data, samplerate=None, channels=None, dtype=None, out=None, input_mapping=None, output_mapping=None, blocking=False, **kwargs ) ¶ If False (the default), return immediately (but recordingĬontinues in the background), if True, wait until recordingĪ non-blocking invocation can be stopped with stop() or turned If mapping is given, channels is silently ignored. List of channel numbers (starting with 1) to record. It’s not natively supported by PortAudio. Recorded in float32 format and converted afterwards, because Not needed if out is given.Īnd uint8 can be used. dtype ( str or numpy.dtype, optional) –ĭata type of the recording.rec ( frames=None, samplerate=None, channels=None, dtype=None, out=None, mapping=None, blocking=False, **kwargs ) ¶ Stop() or turned into a blocking one with wait().Īll parameters of OutputStream – except channels, dtype,Ĭallback and finished_callback – can be used. A non-blocking invocation can be stopped with If False (the default), return immediately (but playbackĬontinues in the background), if True, wait until playback Number of channels in data (except if data is mono, in whichĬase the signal is played back on all given output channels).Įach channel number may only appear once in mapping. List of channel numbers (starting with 1) where the columns ofĭata shall be played back on. It to PortAudio, because it’s not supported natively. The data types float64, float32, int32, int16, int8įloat64 data is simply converted to float32 before passing The columns of a two-dimensionalĪrray are interpreted as channels, one-dimensional arrays are Play back a NumPy array containing audio data. play ( data, samplerate=None, mapping=None, blocking=False, loop=False, **kwargs ) ¶

Default avrecorder