intro algorithm sounds

Blind source separation - sound examples

The following sound examples illustrate the speech enhancement capabilities of the blind source separation algorithm in different noise scenarios. For each scenario two sound files are presented :

  • the unprocessed sound file, which is the signal captured by the front microphone of the right hearing aid. The front microphone signals of the left and the right hearing aid are the inputs to the blind source separation algorithm.
  • the processed sound file, which is the output of the blind source separation algorithm.

Low-reverberant room with stationary directional background noise

  • low-reverberant room
  • male speaker in front of the listener (at 0°)
  • directional stationary noise source having the average spectrum of human speech at the right-hand side of the listener (at 60°)
  • average speaker signal level 5 dB above the noise signal level in the unprocessed condition (SNR=5dB)

unprocessed.mp3
processed.mp3

Living room with a directional music signal as background noise

  • living room
  • male speaker in front of the listener (at 0°)
  • directional music source at the right-hand side of the listener (at 60°)
  • average speaker signal level equal to the noise signal level in the unprocessed condition (SNR=0dB)

unprocessed.mp3
processed.mp3