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Re: Sound hardware access for RO

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In article <4f1253d9$0$5678$ba4acef3@reader.news.orange.fr>, Rick Murray
<heyrickmail-usenet@yahoo.co.uk> wrote:
> On 14/01/2012 21:34, druck wrote:

> > But I doubt any RISC OS system has the horse power to deal with 96K/24
> > bit sound.

> ?

> A 200MHz ARM with 100MHz DSP (DM320 chip) is quite capable of 128K AAC
> audio and 2500kbps H.263 video, playback or recording, in realtime,
> while (slowly) running an OS for telnet access via ethernet.

> A generic last-year Android mobile, running on 700MHz-1GHz, ought to
> find D1 H.264 and XviD a breeze, while 800MHz up ought to get some
> mileage out of HD XviD with software decode. Such phones are comparable
> to the likes of RaspberryPi (which can do HD) and the Beagle.

> If that is possible, I can't see 96K/24bit being *that* much of a
> struggle, surely?

Nor can I. The defeat seems to me to be in the attitude.

FWIW I've also had my Iyo playing various kinds of file. In terms of the OS
and app, this works OK. The problem is the limitations in the physical DAC
arrangements.

> > If you really want to involve the computer, how about DNLA software

> To Jim: Please name our killer application.

> I see it as a chicken and egg, for we *have* no killer audio playback
> app because we have no killer audio DAC because... 

Yes, that is how I view it at present. No one will think of using a RO
based system for serious audio because the DAC 'solutions' available have
been lousy. No one will spend time developing good playing apps capable of
handling, say, 96k/24bit flac if there is no sign of hardware that could
play that *as* 96k/24 without fouling it up.

So far as I can see this has little to do with anything inherent in RO as
an OS. But everything to do with the choice of hardware *and methods
implimented to drive it*. Right down to the bodged Iyonix hardware that
tries to play 44.1k at 48k, so mangles the result.

Yet the whole point of the iso/asynch USB DACs is that they take much of
the load of decent conversion away from the computer itself. And can do so
with a generic driving system that is openly defined. So once in place it
can be used for a range of DACs potentially using a range of RO hardware.
So a general solution rather than a case-by-case hack. I've now tested a
number of such DACs. The more of them I test, and the more people in HiFi
talk about them, the more this seems to me like an opportunity that will be
missed.

Unfortunately, I now think my initial suspicion that there is little
intersection between those who work on RO OS and apps and those with an
involvement in good audio look correct. This may be the result of the same
'loop' so that those with a more audio-focussed awareness have gone
elsewhere long ago.

However I do think the responses I've had here do clarify the lack of
interest people have in even looking seriously at this area. The base
problem is a presumption that it isn't even worth thinking about. This then
become the self-fulfilling loop you describe above.

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

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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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