SoundDeviceSamplesGenerator#
- class acoular.sdinput.SoundDeviceSamplesGenerator(*args, **kwargs)
Bases:
SamplesGeneratorController for sound card hardware using sounddevice library.
Uses the device with index
deviceto read samples from input stream, generates output stream via the generatorresult().- device
input device index, refers to sounddevice list
- num_channels
Number of input channels, maximum depends on device
- num_samples
Number of signal samples
- collect_samples
Indicates if samples are collected, helper trait to break result loop
- sample_freq
Sampling frequency of the signal, changes with sinusdevices
- precision
Datatype (resolution) of the signal, used as dtype in a sd Stream object
- overflow
Indicates that the sounddevice buffer has overflown
- running
Indicates that the stream is collecting samples
- stream
The sounddevice InputStream object for inspection
- digest
A unique identifier for the generator, based on its properties. (read-only)
- device_properties()
Display the properties of the sounddevice input device.
- Returns:
- Dictionary of device properties according to sounddevice
- result(num)
Python generator that yields the output block-wise.
Use at least a block-size of one ring cache block.
- Parameters:
- numinteger
This parameter defines the size of the blocks to be yielded (i.e. the number of samples per block).
- Returns:
- Samples in blocks of shape (num,
num_channels). The last block may be shorter than num.
- Samples in blocks of shape (num,