[alsa-devel] Infrasonic Quartet

Vedran Miletić rivanvx at gmail.com
Wed Nov 12 19:16:32 CET 2008

2008/11/12 Pavel Hofman <pavel.hofman at insite.cz>:
> Vedran Miletić wrote:
>> Auzen started to distribute one cool new Envy24HT-S card, and it looks
>> really interesting to me. Specs are awesome, and it also has word
>> clock on card!
>> http://www.auzentech.com/site/products/infra_quartet.php
>> http://www.infra-sonic.com/site/p_PCI_quartet.php
>> http://www.newegg.com/Product/Product.aspx?Item=N82E16829156007
>> According to envy24.svobodno.com, it has:
>> Infrasonic Quartet      0x3030  0x4953
>> Envy24HT-S - supported by ALSA
>> AK4620B (ADC / DAC) - not sure, probably not supported?
>> AK4112 - not sure either?
>> However it has Xilinx on card in similar way as ESI Juli@ does, so
>> it's probably not a standard Envy24HT-S card.
>> Any ideas if this card could be supported?
> According to the block diagram in the User's Manual the Xilinx plays a major
> role. The FPGA provides even more functions than in Juli.
> Without some information from the manufacturer (even if under NDA) the
> driver will be rather difficult to write. The FPGA is controlled by Envy's
> GPIOs and their signals would have to be electrically analyzed under Windows
> driver - a pretty complicated task. It is very different from a regular card
> with well-documented codecs only where you just need to trace codec pins to
> corresponding GPIOs.
> Pavel.

First off, thanks for answering. I didn't expect anyone to answer,
since this card isn't this common yet, so it surprised me that it
caught someone's interest. Good :)

Well, IMHO, this card is as far as Envy24HT-S can go. Sure you can
have more inputs/outputs, but at 4x4 and without breakout box that's
it, in terms of features. So, I didn't expect the design to be simple
at all. Not to mention unsupported DAC/ADC and DIT.

Yet, assuming we get the specifications from Infrasonic/Auzen, would
you or anyone else be interested in coding a driver?

Vedran Miletić

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