Re: [LAU] Envy24Control is missing the Analog Volume tab - need guidance...

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To: Tim E. Real <termtech@...>
Cc: <linux-audio-user@...>
Date: Monday, November 5, 2012 - 9:06 pm

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On Mon, Nov 5, 2012 at 3:51 PM, Tim E. Real wrote:

> **

i use(d to use) them all the time (they died and are currently in a repair
queue). there's absolutely no problem with external converters.

>

i think you're confused tim. external converters generally have no controls
at all. they are hardware boxes with a few switches here and there. there
are often no levels to set, and if there are, its under h/w control (and/or
physical alteration as is the case with my tango24's)

Could this be solved be someone writing a userspace app to do it,

there is no problem to fix. computer OS drivers do not get to reach
"beyond" the devices they control to toggle parameters on unknown devices
that may or may not actually exist. its that simple. my RME device driver
has no idea what type of converters i am using, and no reason to do so.
this is what protocols are for :)

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On Mon, Nov 5, 2012 at 3:51 PM, Tim E. R=
eal <termtech@rogers.com> wrote:

On November 5, 2012 06:59:12 AM you wrote:

On Mon, Nov 5, 2012 at 4:19 AM, Tim E. Real <termtech@rogers.com> wrote:<=
br>

His converters are external. Does ALSA know how t=
o work with=A0such converters? I'll read a bit more tomorrow. I bet=
some better answers
=A0will appear here though...
external converters are invisible to ALSA, just a=
s they are to CoreAudio or any other audio API. they exist on the "far=
side" of the device being controlled by the driver, and only exist as=
far as the driver is concerned in an indirect sense - they might control w=
ord clock-driven sample rate, for example.=A0

Thanks Paul.
Wow that's a bummer. No external converters?i use(d to use) them all the time (they died and a=
re currently in a repair queue). there's absolutely no problem with ext=
ernal converters.
=A0
=A0
Is there no mechanism to set the converter levels other=
than hard-coded hacks?i think you're c=
onfused tim. external converters generally have no controls at all. they ar=
e hardware boxes with a few switches here and there. there are often no lev=
els to set, and if there are, its under h/w control (and/or physical altera=
tion as is the case with my tango24's)

Could this be solved be someone writing a userspace app=
to do it,
or is this more of a core ALSA problem which would nee=
d wider fixing?there is no problem to fix. =
computer OS drivers do not get to reach "beyond" the devices they=
control to toggle parameters on unknown devices that may or may not actual=
ly exist. its that simple. my RME device driver has no idea what type of co=
nverters i am using, and no reason to do so. this is what protocols are for=
:)

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Re: [LAU] Envy24Control is missing the Analog Volume tab - n..., Paul Davis, (Mon Nov 5, 9:06 pm)