read_wave
- ketos.data_handling.data_handling.read_wave(file, channel=0, start=0, stop=None)[source]
Read a wave file in either mono or stereo mode.
Wrapper method around
- Args:
- file: str
path to the wave file
- channel: int
Which channel should be used in case of stereo data (0: left, 1: right)
- start: int (optional)
Where to start reading. A negative value counts from the end. Defaults to 0.
- stop: int (optional)
The index after the last time step to be read. A negative value counts from the end.
- Returns: (rate,data)
- rate: int
The sampling rate
- data: numpy.array (float)
A 1d array containing the audio data
- Examples:
>>> from ketos.data_handling.data_handling import read_wave >>> rate, data = read_wave("ketos/tests/assets/2min.wav") >>> # the function returns the sampling rate (in Hz) as an integer >>> type(rate) <class 'int'> >>> rate 2000 >>> # And the actual audio data is a numpy array >>> type(data) <class 'numpy.ndarray'> >>> len(data) 241664 >>> # Since each item in the vector is one sample, >>> # The duration of the audio in seconds can be obtained by >>> # dividing the the vector length by the sampling rate >>> len(data)/rate 120.832