Separating 3 Speech Signals using 2 Microphones for Convolutive Mixtures (DEMO PAGE)

Alireza Masnadi-Shirazi, Wenyi Zhang and Bhaskar D. Rao

Real room mixtures:

1.      Recorded in a conference room setting

2.      The sources were 3 loudspeakers positioned on a table, 1-2 m away from microphone pair

3.      Distance between the 2 microphones was 4cm

Simulated room mixtures:

1.      Used Image method to simulate room mixing

2.      1.5 m away from microphone pair

3.      Distance between the 2 microphones was 10 cm

Audio Files (Male, Digits, Real room): (if files do not play when clicked, right click and save to your computer)

Microphone 1 Microphone 2

True source 1 True source 2 True source 3

Glimpsing-IVA: Separated source 1 Separated source 2 Separated source 3

Sawada et al. T-F masking[1]: Separated source 1 Separated source 2 Separated source 3

Audio Files (Male, Digits, Simulated room):

Microphone 1 Microphone 2

True source 1 True source 2 True source 3

Glimpsing-IVA: Separated source 1 Separated source 2 Separated source 3

Sawada et al. T-F masking[1]: Separated source 1 Separated source 2 Separated source 3

 

Audio Files (Female, Real room):

Microphone 1 Microphone 2

True source 1 True source 2 True source 3

Glimpsing-IVA: Separated source 1 Separated source 2 Separated source 3

 

[1] H. Sawada, S. Araki, and S. Makino, A two stage frequency-domain blind source separation method for underdetermined

convolutive mixtures, in 2007 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2007