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Real-time binaural analysis using Linux?

Dear List,

The department I am working for is considering purchasing some
equipment for research purposes in binaural hearing (HRTF-based sound
source localisation, amongst others).
The computer on which we are intending to run the (real-time) binaural
analyses is a PC running LINUX.

1) Part of the question is general and applies to anyone interested
   in real-time sound source localisation with a pair of mics as input:
   There are apparently two main options for the acquisition of the
   acoustic signals: a sound-card vs an A/D convertor. How do they compare?

2) Linux-oriented question: Do most cards have drivers for Linux?

Many thanks in advance.


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   Dr. Eric Mousset - Research Associate
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   University of Sydney                              phone: +61 2 9351 7208
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