The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
NNTP-Posting-Date: Sat, 28 Dec 2002 00:36:10 -0600
From: "Mike Shonle"
Subject: Re: USB Design. Need advice.
Date: Sat, 28 Dec 2002 01:37:10 -0500
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers
X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly
What about just using a soundcard, or am I missing something here?
"Dan McDaid" wrote in message
> Hi. I need to make an isochronus usb device that has two audio out
> and two in.
> I'm new to USB but have a decent background in electronics.
> My question is pretty simple. I can rig up a USB-DAC IC to get a singe
> audio out channel. Now if i use two of these ICs and put them behind a
> USB-Hub IC then with appropriate drivers I can send the digital streams to
> each IC, which are essentially separate devices. Similarly, I can rig up
> two ADC-USB circuits and put them behind this same internal hub. Bang it
> all in a box, stick some phono plugs on and a usb cable and with any luck
> can get down to writing the software.
> This all seems pretty sloppy though and there must be a way I can combine
> all this stuff into one device without this whole hub idea. Trouble is,
> never used USB before and should really do some reading. Theres so much
> the net though its hard to wade through all the irrelevant stuff.
> Im planning to build my own version of www.finalscratch.com. The idea
> two vinyl turntables are plugged into the 2x IN channels, the two out
> channels get connected to the DJ mixer console. The two vinyl disks that
> are put onto each turntable respectively, are pressed with some sort of
> waveform that can be interpreted digitally as a timeline. (waiting on a
> replacement LP from Stantons FinalScratch - in post so I can see how it
> works and rip it off - cheaper than having my own vinyl pressed several
> times until I got the right idea!). The idea is that two mp3s are
> out the interface into the mixer. The timebase of each mp3 is mapped to
> controlled by the vinyl. Thus you can manipulate mp3s exactly like vinyl.
> Why do I want to do this? Well apart from the $500 price tag for the
> original FinalScratch, its an interesting project.
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup