Groups > comp.sys.acorn.programmer > #1335

Re: Sound hardware access for RO

From	Jim Lesurf <jcgl@audiomisc.co.uk>
Subject	Re: Sound hardware access for RO
Newsgroups	comp.sys.acorn.programmer
Date	2012-01-17 09:28 +0000
Message-ID	<5252e61730jcgl@audiomisc.co.uk> (permalink)
References	(4 earlier) <4f1253d9$0$5678$ba4acef3@reader.news.orange.fr> <jeugt8$gh9$1@dont-email.me> <almarsoft.7324079975835647142@news.orange.fr> <52520a9bf5jcgl@audiomisc.co.uk> <4f151393$0$2519$ba4acef3@reader.news.orange.fr>
Organization	None

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In article <4f151393$0$2519$ba4acef3@reader.news.orange.fr>, Rick Murray
<heyrickmail-usenet@yahoo.co.uk> wrote:
> On 15/01/2012 18:30, Jim Lesurf wrote:

> > That comes out as a raw data rate of 96000 x 8 bytes per sec = 768,000
> > bytes/sec
> [...]
> > Now that is a lot of data, but I'm surprised if the USB wasn't able to
> > cope in *any* RO hardware.

> Like I said earlier, a 200MHz ARM is happy writing 2628kbit of video
> data to USB in realtime. Actually, I lie. Looking at the flashy light on
> the USB stick, it does it in bursts every 8-12 seconds. This meaning if
> a 200MHz ARM can burst it, a slower ARM ought to be capable of at least
> streaming it...but I don't think this idea is going to be aimed at an
> ARM610 RiscPC now, is it? ;-)

A 610 RPC isn't what I had in mind. ;->

My interest is in something that would work on things like a BB, ARMini, or
a Raspberry Pi. I'd also like it work on an Iyo as that seems as if it may
be feasible to me. The point of the USB route, though, is to make it as
'generic' as possible.

Maker's of USB DACs I have discussed them with are often keen that their
products be as 'generic' in their ability to work as they can. This shows
up in their being willing to help me check and debug problems with Linux
even though their main focus is on Windows and Mac. So a generic USB
iso/asynch should open up access to many good DACs for a range of hardware
for RO. How wide this would all be, I don't know. We will only know if and
when someone does it.

Slainte,

Jim

-- 
Electronics  http://www.st-and.ac.uk/~www_pa/Scots_Guide/intro/electron.htm
Armstrong Audio  http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc  http://www.audiomisc.co.uk/index.html

Thread

Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-11 12:18 +0000
  Re: Sound hardware access for RO Alan Wrigley <spamhater@keepyourfilthyspamtoyourself.co.uk> - 2012-01-11 12:30 +0000
    Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-11 13:43 +0000
      Re: Sound hardware access for RO Jeremy Nicoll - news posts <jn.nntp.scrap007@wingsandbeaks.org.uk> - 2012-01-11 22:35 +0000
        Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-12 10:08 +0000
          Re: Sound hardware access for RO Alan Wrigley <spamhater@keepyourfilthyspamtoyourself.co.uk> - 2012-01-12 17:57 +0000
            Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-13 12:05 +0000
      Re: Sound hardware access for RO Roger Darlington <rogerarm@freeuk.com> - 2012-04-03 09:03 +0100
        Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-04-03 09:53 +0100
  Re: Sound hardware access for RO John Kortink <kortink@inter.nl.net> - 2012-01-11 14:10 +0100
    Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-11 15:13 +0000
      Re: Sound hardware access for RO Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-01-11 17:04 +0000
      Re: Sound hardware access for RO John Kortink <kortink@inter.nl.net> - 2012-01-11 19:58 +0100
    Re: Sound hardware access for RO "Ste (news)" <steve@revi11.plus.com> - 2012-01-15 17:14 +0000
      Re: Sound hardware access for RO Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-01-17 07:11 +0100
  Re: Sound hardware access for RO druck <news@druck.org.uk> - 2012-01-11 20:52 +0000
    Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-12 09:21 +0000
      Re: Sound hardware access for RO druck <news@druck.org.uk> - 2012-01-14 20:34 +0000
        Re: Sound hardware access for RO Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-01-15 05:19 +0100
          Re: Sound hardware access for RO druck <news@druck.org.uk> - 2012-01-15 12:30 +0000
            Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-15 13:38 +0000
              Re: Sound hardware access for RO druck <news@druck.org.uk> - 2012-01-17 23:38 +0000
                Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-18 09:37 +0000
                Re: Sound hardware access for RO Jeremy Nicoll - news posts <jn.nntp.scrap007@wingsandbeaks.org.uk> - 2012-01-27 02:05 +0000
                Re: Sound hardware access for RO Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-01-27 05:19 +0100
            Re: Sound hardware access for RO Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-01-15 15:57 +0100
              Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-15 17:30 +0000
                Re: Sound hardware access for RO Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-01-17 07:22 +0100
                Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-17 09:28 +0000
                Re: Sound hardware access for RO Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-01-17 11:31 +0000
                Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-17 12:34 +0000
            Re: Sound hardware access for RO Dave Higton <davehigton@dsl.pipex.com> - 2012-01-16 21:19 +0000
          Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-15 10:18 +0000
            Re: Sound hardware access for RO Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2012-01-15 16:18 +0100
              Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-15 17:39 +0000
        Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-15 10:01 +0000
  Re: Sound hardware access for RO Dave Higton <davehigton@dsl.pipex.com> - 2012-01-16 21:28 +0000
    Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-17 09:35 +0000
    Re: Sound hardware access for RO Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-01-17 11:37 +0000
      Re: Sound hardware access for RO davehigton <davehigton14@googlemail.com> - 2012-01-17 05:07 -0800
        Re: Sound hardware access for RO Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-01-17 16:46 +0000
          Re: Sound hardware access for RO Ron <beeb@woosh.co.nz> - 2012-01-18 11:22 +1300
            Re: Sound hardware access for RO Theo Markettos <theom+news@chiark.greenend.org.uk> - 2012-01-17 23:42 +0000
              Re: Sound hardware access for RO Ron <beeb@woosh.co.nz> - 2012-01-18 13:47 +1300
      Re: Sound hardware access for RO Jim Lesurf <jcgl@audiomisc.co.uk> - 2012-01-17 12:36 +0000

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