Re: Does alsa_in reading from SPDIF input inject pops and clicks?

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I am considering

* Creative Sound Blaster X-Fi HD USB for headphone jack and SPDIF In.
* StarTech.com 7.1 USB Sound Card with
https://www.viatech.com/en/silicon/legacy/audio/vt1630a/ chipset for SPDIF
Out, SPDIF In, and headphone jack.
* Realtek ALC887 onboard soundcard for SPDIF out and potentially headphone
jack.

Obviously, X-Fi HD has far higher signal to noise ratio for DAC.
But, for SPDIF In,  StarTech.com 7.1 USB soundcard might be cheap and good
enough. VT1630A might also have a better implementation of SPDIF out that
emits clock signals in the absence of audio signals.
But, everything here is a speculation since I haven't tested any.

On Fri, Aug 9, 2019 at 11:18 AM Chris Caudle <[email protected]> wrote:

> On Thu, August 8, 2019 6:39 pm, crocket wrote:
> > If there is no audio data from SPDIF out, would SPDIF out still send
> clock
> > signals?
>
> Often that is the case, but you would have to consult the documentation
> for your particular audio interface to verify.
>
> --
> Chris Caudle
>
>
> _______________________________________________
> Jack-Devel mailing list
> [email protected]
> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
>

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<div dir=3D"ltr">I am considering<div><br></div><div>* Creative Sound Blast=
er X-Fi HD USB for headphone jack and SPDIF In.</div><div>* StarTech.com 7.=
1 USB Sound Card with=C2=A0<a href=3D"https://www.viatech.com/en/silicon/le=
gacy/audio/vt1630a/">https://www.viatech.com/en/silicon/legacy/audio/vt1630=
a/</a> chipset for SPDIF Out, SPDIF In, and headphone jack.<br></div><div>*=
 Realtek ALC887 onboard soundcard for SPDIF out and potentially headphone j=
ack.</div><div><br></div><div><div>Obviously, X-Fi HD has far higher signal=
 to noise ratio for DAC.</div><div>But, for SPDIF In,=C2=A0 StarTech.com 7.=
1 USB soundcard might be cheap and good enough. VT1630A might also have a b=
etter implementation of SPDIF out that emits clock signals in the absence o=
f audio signals.</div></div><div>But, everything here is a speculation sinc=
e I haven&#39;t tested any.</div></div><br><div class=3D"gmail_quote"><div =
dir=3D"ltr" class=3D"gmail_attr">On Fri, Aug 9, 2019 at 11:18 AM Chris Caud=
le &lt;<a href=3D"mailto:[email protected]">[email protected]</a>&g=
t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Thu=
, August 8, 2019 6:39 pm, crocket wrote:<br>
&gt; If there is no audio data from SPDIF out, would SPDIF out still send c=
lock<br>
&gt; signals?<br>
<br>
Often that is the case, but you would have to consult the documentation<br>
for your particular audio interface to verify.<br>
<br>
-- <br>
Chris Caudle<br>
<br>
<br>
_______________________________________________<br>
Jack-Devel mailing list<br>
<a href=3D"mailto:[email protected]" target=3D"_blank">Jack-De=
[email protected]</a><br>
<a href=3D"http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org=
" rel=3D"noreferrer" target=3D"_blank">http://lists.jackaudio.org/listinfo.=
cgi/jack-devel-jackaudio.org</a><br>
</blockquote></div>

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