File IO

in pysndlib.clm

file2ndarray(filename, channel=None, beg=None, size=None)

return an ndarray with samples from file and the sample rate of the data

Parameters:

• filename – filename

• channel – if None, will read all channels, otherwise just channel specified

• beg – beginning positions to read in samples

• size – size in samples to read

Returns:

tuple of np.ndarray and sample rate

Return type:

tuple

ndarray2file(filename, arr, size=None, sr=None, sample_type=None, header_type=None, comment=None)

write an ndarray of samples to file

Parameters:

• filename – name of file

• arr – np.ndarray of samples

• size – number of samples to write. if None write all

• sr – sample rate of file to write

• sample_type – type of sample type to use. defaults to clm.sample_type

• header_type – header of sample type to use. defaults to clm.header_type

Returns:

length in samples of file

Return type:

int