Re: [SlimDevices: Touch] Touch with USB Output? Anybody do it yet?

2011-02-18 Thread metronet

JohnSwenson;579864 Wrote: 
> The C-media USB receivers are some of the worst ones ever made, their
> sole redeeming feature is that they are dirt cheap. No wonder you like
> the S/PDIF better. 
> 
> John S.

Hi John, do you think the CM6631 would be a better choice?

I am now thinking of getting the Asynchronous Mhdt USBridge to try with
your mod :)
>> http://dhost.info/mhdtlab/USBridge.htm

Thanks,


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Re: [SlimDevices: Touch] Instructions for connecting USB DAC to Touch

2010-12-29 Thread metronet

marea;595204 Wrote: 
> 
> It's work well if I connect th Touch to a non asynch Havana DAC via
> USB. 
> anyway, with my ears and system, I like more the connexion Touch -->
> spdif --> Havana 
> 
> My 2 cents

I second that. It sounds more nature from the Touch to Mhdt Havana via
the spdif.


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Re: [SlimDevices: Touch] Instructions for connecting USB DAC to Touch

2010-09-30 Thread metronet

JohnSwenson;579860 Wrote: 
> Both the Musiland 01 USD and the M2Tech will NOT work with the Touch.
> They require a custom driver of which only Mac or Windows versions
> exist. The Touch runs linux on an ARM processor so the existing drivers
> will not work. 
> 
> You HAVE to use a device that will work with a generic driver, NOT its
> own custom driver.
> 
> I'm not up on DSIX, I've seen two very different things on the net
> under that name, I'm not sure what you are referring to. One looks like
> a simple waveform reshaper and a transformer, the other has an
> oscillator and says something about a PLL, I have not been able to find
> any details about whats actually going on inside of this. 
> 
> I've written hundreds of pages on S/PDIF before, I'm not really up to
> that all over again. The upshot is that it is HIGHLY variable. Almost
> no devices actually really get the spec right so you are almost always
> dealing with a gamble as to what is going to work the best. In real
> life its all about which imperfection of transmitter matches the
> imperfections of the receiver the best. Which comes down to its
> impossible to make generalizations. Try a bunch of stuff and use the
> one that sounds the best. Just because something works best for someone
> else, its highly unlikely its going to be the best for you unless you
> have exactly the same gear.
> 
> 
> 
> John S.


Thanks John, I appreciate your thorough reply.

I haven't found a page that does a good job explaining DSIX in English
yet. I think the name stands for Digital Signal Isolation Exciter.
http://www.yasu-audio.com/dsix105_01.html

What USB/SPDIF converter would you recommend for the Touch usb out?


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Re: [SlimDevices: Touch] Touch with USB Output? Anybody do it yet?

2010-09-29 Thread metronet

iPhone;577838 Wrote: 
> Do you already own one? If the answer is NO, stay away from USB DACs.
> Use the Coax Digital out on the Touch!
> 
> If one just has to use a DAC with the Touch, use a DAC with Coax S/PDIF
> input with the Touch.
> 
> With both Toslink and COAX S/PDIF output available on all late model
> Squeezeboxes without speakers, my advice is to stay away from USB DACs
> IE why go there?

For the DAC I have and the USB receiver chip it uses I'd have to agree
with iPhone.

I have tested the Touch with the ALSA USB out mod to a Mhdt Havana USB
and I must say that I like the coax spdif from the Touch much better.

If I understand it correct, the Mhdt Havana DAC uses a C-media receiver
which than converts USB (adaptive mode) to spdif format for process.

Perhaps it depends on your DAC and it's design... (?)


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Re: [SlimDevices: Touch] Instructions for connecting USB DAC to Touch

2010-09-29 Thread metronet

JohnSwenson;578577 Wrote: 
> Do you know if the V-DAC uses asynchronous USB or adaptive USB? The USB
> driver in the Touch has a problem with some asynchronous
> implementations. I've sent a fix to the Logitech developers but I don't
> think its ever been put in a firmware. 
> 
> John S.


Hi John, do you happen to have a list of the asynchronous USB to spdif
converter that would work with the Touch, like the Musiland 01 USD?


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