I am trying to retrieve data from a microphone that connected to iMic USB,
and I found the time of submitting a usbIrp to an isochronous pipe is about
12 ms (synd or async). iMic USB has three wMaxPacketSize settings, and the
largest one is 200 bytes, that amounts to 8.3k samples/second (for a two
byte sample). But the standard audio sample rate is 44.1k, so 8.3k is way
too slow. Is there any way to enhance the speed? I noticed iMic USB works
fine under Windows with 44.1 k sample rate. Any help will be appreciated.
Charles Chen
_________________________________________________________________
Express yourself instantly with MSN Messenger! Download today - it's FREE!
http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
_______________________________________________
javax-usb-devel mailing list
javax-usb-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/javax-usb-devel
