Re: Infrasonic Quartet

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Vedran Miletić wrote:> 2008/11/13 Vedran Miletić <rivanvx@xxxxxxxxx>:>> 2008/11/12 Pavel Hofman <pavel.hofman@xxxxxxxxx>:>>> Vedran Miletić napsal(a):>>>> 2008/11/12 Pavel Hofman <pavel.hofman@xxxxxxxxx>:>>>>> 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?>>> Well, I could work on the driver, it would be similar to Juli. ice1724.c is>>> mostly ready for the proprietary clock model. The aforementioned chips have>>> complete documentation publicly available. If I had the card physically to>>> trace connection and test (I am no Takashi the wizard :) ) and some>>> documentation available, it should be viable.>>>>>> Honestly I am not going to purchase it myself, I have no other use for it>>> plus PCI is almost history now. Unfortunately I have not met any PCI-express>>> card with quality 44.1kHz playback (i.e. dedicated crystal clock).>>>>>> Pavel.>>>>> I do agree that PCI is almost history nowadays. Better said, it should>> be. However, I see no viable replacement for Envy24 cards on PCI-E.>> Oxygen and X-Fi just don't cut it. Anything else?>>>> Of course, when it comes to Envy on PCI-E there is Tokyo Style S010>> DCS-SEV24, however that card doesn't support ASIO and since it uses>> PCI <--> PCI-E bridge it's performance (in low latency operation) will>> probably suck. And also it's not aimed at producers, and it doesn't>> even support ASIO in Windows. I believe there are no MIDI ports>> either.>>>> Therefore, out of all those "new" Envy24-based cards (since that's>> basically what's available in this price range), Quartet stands out as>> basically the best producer-oriented solution out there. Even more>> than that - this is by far the best Envy24 card I have seen so far.>> Almost like there is nothing to add :-) It's not available where I>> live (Croatia), but it might be in the future since Auzen started to>> distribute it, that's why I was interested in possibility of ALSA>> driver for it appearing.>>>> Well, I will contact Infrasonic in the coming days and let you know>> how it went. Fingers crossed.>>>> -->> Vedran Miletić>>> > I got a positive reply from Infrasonic, but haven't taken it further> since I lack coding skills in this regard. Anyone wants to?> 
Well, I am awaiting our second child which will keep me a bit busy. If the timing is not too tight, I think I could find some time to work on the driver, provided the manufacturer lends me the card and provides reasonable amount of information.
Pavel._______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel

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