Re: Help!
Re: Help!
- Subject: Re: Help!
- From: Brian Willoughby <email@hidden>
- Date: Mon, 29 Apr 2002 18:51:39 -0700
[ > > # of controllers=3
[ > > name of Controller[0]=[Plantronics headset]
[ > > name of Controller[1]=[Plantronics headset]
[ > > name of Controller[2]=[Built-in audio controller]
[ > >
[ > > why is it doing that when I only have one plantronics headset plugged
[ > > in?
[ >
[ > The reason why is that USB devices don't present their input and output
[ > data synchronously. They have to be clocked differently so they show up as
[ > separate devices in the HAL.
[
[ So duplicates should be discarded?
No. Technically, they're not duplicates. One is the input half of the
headset (mic), and the other is the output half (earpiece). If you discard
one, you won't be able to transfer audio in that direction.
Look at what Daisy shows you for a clearer idea of how your hardware is being
presented to the software system. My USB Audio device (eMagic EMI 2|6) shows
up as two unidirectional devices also, just as Jeff predicts.
Brian Willoughby
Sound Consulting
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| References: | |
| | >Re: Help! (From: Jeff Moore <email@hidden>) |
| | >Re: Help! (From: Matthew Johnson <email@hidden>) |