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wow, breakaway with this ?
it seens that ASUS starts leaving the realtek chipsets!!
Leif , can you tell us if you have seen this new high definition sound card ? VIA VT2020 (BD192/24 ENVY HD
it’s in all the new ASUS mainboards!
Hi Camclone!
I haven’t seen this one, but VIA VT1708B is crap. The output spectrum is so dirty it’s completely unusable for MPX.
If you have an oscilloscope, you can test your board yourself, Camclone. (If you don’t, you really should, considering how much you’re into processing). Play a 57 kHz sinewave through the output and see what it looks like on the scope. If it look like a nice steady sinewave, you’re good. If it looks all jagged and bent out of shape, congratulations — you have a shitty output dac 🙂.
///Leif
ASUS do not use Realtek long time ago. Now uses chips from Advanced Devices Company, but specialy maded for them (like AD2000B).
I don’t know about new VIA chips in ASUS boards, but realtek and new AD chips are good. 😉btw. Juli@ rulez
i wonder what will Lief think about this card when he test it.Juli@ rules indeed. 🙂
I really don’t have the time or resources to test every consumer level sound card or motherboard myself, but the good news is, anyone can do it! All you need is Breakaway, and a scope. With the multitude of test tones available in BBP, you can test easily test every important aspect of the dac.
///Leif
Too bad for ASUS chosing the VIA chipsets for onboard sound 🙁
You where right , even this new 10 channel chipset (via) has very dirty output .I love realtek onboard soundcards 🙂 it’s free of charge and very stable ..if you use the latest drivers … 🙂
ESI Jul is the best for it’s money too!
Thanks everyome.
( I play with Realtek onboard Realtek ALC1200 )Hardware oscillator,
but if someone else buy a motherboard with that chipset ( VIA VT2020 (BD192/24 ENVY) please make another test.finnaly, i prefer Realtek with latest drivers
it’s like an 200 dollars soundcard…except ..ASIO support ..There’s a few more differences between Realtek and Juli@, other than ASIO support.. Even if the ADC and DACs behave well, the noise floor is much higher on Realtek, much lower analog output level (and input clip level), no balanced i/o, etc etc.
It’s possible to use on-board audio for MPX out — I frequently do for demos — but I wouldn’t run my station on it.
///Leif
actually realtek have low noise.. i tested ALC 889 .. maybe the best one from realtek
# Hardware Features High performance DACs with 108dB signal-to-noise ratio (A-weighting)
# High performance ADCs with 104dB signal-to-noise ratio (A-weighting).But i must mention recommended card from many people … E-MU 0202 .. this is the worst sound card i tested on 192khz I/O.
Both realtek and Alanlog Devices (HD) Onboard soundcards are better.I couldn’t disagree more about the E-MU 0202. It sounds, tests and measures better than any on-board chips I have ever heard. Realtek make good audio chips, but they’re not pro audio quality. You notice the difference when you actually test it in the real world.
Most manufacturers specs are done in the lab under ideal conditions. Once the audio chip is actually mounted to a motherboard, things change radically.
///Leif
Mostly because of all the other stuff that gets slapped on and plugged into the mainboard, not even to mention the quality of the power supply being used.
Devices that use their own powering from a wallwart, preferably a high frequency switching design (very few converters do that, but more are starting to) the cleaner the power source is. Getting the electronics outside of the massive RFI of the mainboard itself is most of the battle though.
Another decent onboard audio brand that you don’t see too much of anymore is C-Media.
http://www.cmedia.com.tw/
The ASUS Xonar D2 has a C-Media chipset for instance.But as Leif said… fine for a portable demo, but wouldn’t run a station with onboard audio. 🙂 It is inherently filthy business.
ESI MAYA44 sounds much better with the MPX in Breakaway Broadcast and ASIO without latency problems 🙂
So , let’s make a conclusion and let google …crawl this topic to it’s cache 🙂 🙂) !
The most tested and ..stable …and "clean" soundcards with ASIO support and LOW COST are :
ESI MAYA44 and ESI Juli
Well done ESI !
As far as I know, the nyquist theorem is a pain when you try to draw all juice from a given sound card, especially when it comes to the distortion of the sine waves at enormously high frequencies like 57KHz.
Can anyone recommend the single most linear sound card with a recording and playback sampling rate of 192 KHz and above, since you are all deep into DSP and I guess you have teated a whole bunch of relative tools? Anything up to 384KHz? I am actually trying to use it as an oscilloscope – spectrum analyzer for audio frequencies. I do have an analog oscilloscope, up to 20MHz, but is bulky and I cannot fit it in my small test bench neatly.
Howdy!
The Nyquist theorem is not the problem. This theorem states any frequency below 96 kHz is perfectly reproducable with 192k sampling, and it’s right. 57k is well below 96k 🙂. Problems arise only from d/a converters with erroneously designed reconstruction filters.
Every Realtek HD audio dac i’ve tried (the ones that support 192k) has given me perfect sinewave output at any frequency up to 60 kHz. (I haven’t tested higher).
VIA Vinyl VT1708B on the other hand, not the case. In fact, i don’t know what they did to make it so bad!
Juli@ is a really nice and linear card, especially by soldering in bigger capacitors to improve the low frequency response. For software, take a look at my program MpxTool – http://mpxtool.com .
Best,
///Leif
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