ref: e3e8e9d285fcd014bff0648c5ff3b4a2d76d7961
dir: /python/demos/demo_pysoundcard_record.py/
#! /usr/bin/env python
def record_sink(sink_path):
"""Record an audio file using pysoundcard."""
from aubio import sink
from pysoundcard import Stream
hop_size = 256
duration = 5 # in seconds
s = Stream(block_length = hop_size)
g = sink(sink_path, samplerate = s.sample_rate)
s.start()
total_frames = 0
while total_frames < duration * s.sample_rate:
vec = s.read(hop_size)
# mix down to mono
mono_vec = vec.sum(-1) / float(s.input_channels)
g(mono_vec, hop_size)
total_frames += hop_size
s.stop()
if __name__ == '__main__':
import sys
record_sink(sys.argv[1])