Re: [LAU] Linux audio droid?

The Nexus One has a '600MHz' FPU on its Qualcomm ARM core. I doubt if
that will translate into 600 MFlops as there will be performance degredation
and any app has to be quite specifically coded to actually use the FPU, a bit
like you have to code specifically for MMX and SSE on Intel architectures,
the compiler does not do this automatically.

If the code does not optimise onto the architecture you end up with soft floats
and consequent performanace limitations. I wouldn't imagine softfloats being
be a big issue for Jack itself but may be for any code that wanted to do any DSP
on the audio distributed by Jack.

You also need to consider that having limited FPU performance may imply
having multiple apps running DSP code is out of the question, which implies
Jack (as an audio distribution server) is of limited use.

Android is an interesting platform though, not least because it does have
reasonable horsepower on the Nexus and it is multitasking. Why the iPhone
dropped that capability beats a lot of people.

How much are you looking to do on it?

Kind regards, nick.

"we have to make sure the old choice [Windows] doesn't disappear”.
Jim Wong, president of IT products, Acer

> Date: Sun, 14 Feb 2010 10:28:47 +0100
> From: jeremy@email-addr-hidden
> To: linux-audio-user@email-addr-hidden
> Subject: Re: [LAU] Linux audio droid?
>
> Ken Restivo wrote:
> > Just curious: do any of the Android-capable phones have an FPU? Can any of them run JACK?
> >
> > I've got a Linux audio instrument that fits in my backpack; the next challenge would be to see if I can get on that fits in my pocket.
> >
> > -ken
> > _______________________________________________
> > Linux-audio-user mailing list
> > Linux-audio-user@email-addr-hidden
> > http://lists.linuxaudio.org/listinfo/linux-audio-user
>
> Just had my first cup of coffee... Sorry Ken.
>
> Hello Ken,
>
> The Motorola Droid (or Milestone) and its little brother the Droid
> Devour have FPU's. You can also run Android on the Nokia N900 which has
> an FPU also. And then there's the Nexus One.
> I'm sharing your curiosity so I'll keep an eye on this thread.
>
> Best,
>
> Jeremy
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user@email-addr-hidden
> http://lists.linuxaudio.org/listinfo/linux-audio-user
                                               
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Received on Sun Feb 14 16:15:02 2010