Virtual Mixture System

1
Virtual Mixture System
Audio reproduction system we aim

• Generate binaural signals at user-selected
  listening positions
• from audio signals of multiple sound sources.

• We developped using sound separation technique.

2
Recording Musical Instrument Sounds

• Recorded at sound-proof room.
• Experiment condition is given below.

(Violin) Y.Ohishi
(Flute) A.Naito
3
Source Separation by FD-ICA

• Source separation method based FD-ICA
  (Frequency-Domain Independent Component
  Analysis).

• Estimate separation filter with respect to each
  frequency band using obserbed signals.

• Separation signals demo

Violin
Flute
Observed
4
Convolute with HRTFs

• Sounds recomposed using HRTFs(Head Related
  Transfer Functions) and separation signals.

HRTFs databases condition (given by T.Nishino).

• Virtual mixture sound demo.

y
z
x