Audio Quality: Qualitative Analysis

For our qualitative audio analysis, we would like to stress again that listening to analog outputs on PC audio cards is a very subjective and difficult task. Digital should be used where possible, but the majority of people still run analog. And so the quality of analog output is still of the utmost importance.

-- 16-bit/44.1kHz/2-Channel Test: The Mangroves Live at Tir na Nog

This recording was done using a DigiDesign ProTools LE Digi 002 setup on a G5 at a local bar in Raleigh. Though the 1 room + 2 vox + 5 instrument mic setup (for a three piece indi/rock band) left a little to be desired, and the mix down was less than stellar, this gig makes an excellent test track. On the Gina3G and Intel solutions, it's easy to separate the noise and the music, but on the Audigy 2, the audience sounded a little smashed into the band. This problem wasn't as bad on the Audigy 4, but the crowd noise on the other cards seemed a little less muddy and thick. It's likely that any 44.1kHz audio source with a lot of high end will produce a muddled low end on Audigy cards because of the poor IMD at high frequencies. Just because we can't hear the high fequencies that are interfering doesn't mean that we can't hear the product of their interferance.


-- 24-bit/96kHz/6-Channel Test: Creative Labs Demo DVD-Audio

It was hard to decide on what media to choose, so we just pulled a track that we liked from the Creative sample disk. We went with Mannheim Steamroller - Leonardo from their American Gramaphone album. The track fits their normal eclectic style and mixes intricate rhythms with walking melodies. The synth harpsichord on drums is quite interesting. We used PowerDVD to play back the DVD-Audio on all 4 cards, and didn't have any problems. The voicing was clear all around, and try as we might, we couldn't discern one card from another. If we really cranked the volume to painful levels, we could hear some noise on the Intel solution. Unfortunately, there is no way to play DVD-Audio out over a digital connection to a receiver. This makes the analog signal quality of the card of the highest importance if DVD-Audio listening is going to be performed on the PC.


-- DVD-Video Tests: The Matrix / Dream Theatre Live at Budokan

We wanted to test a movie and a live audio performance with our DVD test. The Matrix is always fun to watch, so we just couldn't help popping that one in. And who's better live than Dream Theater? OK, so that may be totally subjective, but they at least create a lot of sound, and being a drummer, it's hard not to want to sit and listen to Mike Portnoy for multiple hours. Both The Matrix and Dream Theater Live at Budokan took full advantage of our 5.1 surround system, though we preferred listening to Dream Theatre using the higher quality headphones in stereo while watching. And so, we listened both ways on each card just to cover the bases.

And what do you know, but we just couldn't find favor with any of these cards. Each did as good of a job as the last playing back these higher quality audio streams.

The only discernable differences in our listening tests came in at 16-bit/44.1kHz on the Audigy series of cards. Tying it back to RMAA, we can point to the poor IMD performance. On a design level, some sites point out that this problem could stem from the fact that the creative DSP is locked at 16-bit/48kHz, and 44.1 is not an even multiple of 48 (as 96 and 192 are). This odd multiple resampling could be causing the issues, but that seems likely only if the DSP were enabled (some EAX/EQ/filtering turned on). In our RMAA tests and during playback, we made sure to disable these features, so this shouldn't have been a factor.

It is possible to have your favorite media player upsample your 44.1kHz media up to 48kHz, which would cause less problems than forcing a native 48kHz device to operate at 44.1kHz. Check the help files for resampling options.


Audio Quality: RightMark Audio Analyzer 16/44.1 Gaming Performance Tests
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  • smn198 - Thursday, February 3, 2005 - link

    For me personally what I would want is reviews of gaming perfomance since I used the SPDIF outputs and my HiFi so they all should so the same. I'd also like to know how much difference there really is between different EAX implementations and if it is true that a new SoundStorm board is coming out. I'm sure you know. Can't you just claim you forgot the NDA? ;)
  • reidc - Thursday, February 3, 2005 - link

    My main reason for a soundcard is transferring analog audio from my Turntable(remember those 12" pieces of vinyl????) to CD- or commonly referred to as "needle-drops". The higher quality DAC's and discrete components the better.

    When I went from my old SB-Live to turtle Beach Santa Cruz- I recevied a huge boost in quality- the drop in noise was huge.

    I'd love to see how the TB SC holds up in this regard compared to the listed products.

    Oh- my TB SC is currently not in a PC- as I am just getting the Intel 915 board running in a mchine. I assume by seeing the Intel HD Audio tests- I WILL be putting my Santa Cruz in.

    Chris
  • sandorski - Thursday, February 3, 2005 - link

    Yup, a wider range of cards would be nice.
  • ottodostal - Thursday, February 3, 2005 - link

    I am quit disappointed with this review as there are only so few audio cards there. There are so many of them on the market! You must definitely include M-Audio Revolution 7.1, and some card from Audiotrak Maya + Prodigy series (aka Prodigy 7.1), and Aureon 7.1 Universe or DMX 6fire from Terratec. These are of the major cards on the market and there are missing. You could also include Turtle Beach Santa Cruz, and some card from Hercules.

    I would also include more mid-range and maybe some even some high-en cards (like those from Aardvark or R M E or MOTU ) generally, do not concentrate on low-end cards like Audigy 2 from Creative. In graphic cards reviews you expect us to pay over 600USD for them, so why to concentrate on value cards in audio tests? BTW if you think that people are not doing such things like playing games on audio cards which cost over 800USD you are wrong :)

    You should also include some external USB and Firewire cards like Audiophile USB or FireWire 410 from M-Audio (one of my friends recently brought the Audiophile USB replacing some older Audiotrak Maya and he is quit happy with it. He told that even listening to mp3 files is clearly better).

    You must also include latency tests in the review and you should comment on support of main standards lide ASIO and GSIF.
  • DerekWilson - Thursday, February 3, 2005 - link

    #13, ceefka,

    if you're refering to not calling Intel HD audio, it can do 24-bit/96kHz ... It just can't record at that bit rate. Playback is no problem. Of course, it's not as high quality as we would expect to see from that many bits per sample at that sampling rate.

    #12, S0me1X,

    The gina3g uses an external DAC/ADC which is one of the reasons we see a cleaner signal. Of course, the soundblaster uses a /better/ DAC, so we see lower noise and dynamic range even though the signal looks a lil shaky at spots.

    external DACs are a very good idea.

    Derek Wilson
  • ceefka - Thursday, February 3, 2005 - link

    Any chance for one of the Terratec soundcards? I heard they're pretty good.

    My ideal soundcard or onboard solution should be
    -96KHz/24-bit DTS/Dobly Surround and any previous standard
    -optical and coaxial s/pdif input and output
    -perhaps an analogue breakoutbox for simple stereo operation and additional analogue outputs.

    With so many DVD-players around (even in cars), there is no need to stay in the 44.1/16 realm. 48/24 already sounds so much better than 44.1/16.

    It would be nice to have onboards being taken more seriously by the manufacturers. The leads on a mobo are all quite exposed to everything else going on in there. A few efforts in shielding would probably make a real difference, even without changing the chip. I am not ready to pay for a crappy onboard solution. And don't call it HD unless it can do 96/24.
  • S0me1X - Thursday, February 3, 2005 - link

    Best way to get quality sound out of a pc is to use an external DAC. I'm using a Benchmark DAC1 that I'm very happy with :)
  • SignalPST - Thursday, February 3, 2005 - link

    I just hope that Creative would fix the 44.1kHz resampling issue and IMD problems with the Sound Blaster Zenith sound cards thats suppose to come out sometime this year.
  • sxr7171 - Thursday, February 3, 2005 - link

    I don't see how the Audigy 4 is so much better than the Audigy 2 to recommend it over the Audigy 2. They are pretty much the same with the Audigy showing weaknesses and one strength in 24/96 D/A conversion. I guess internal computer audio is still not to be taken very seriously except for games (which the reviews sort of hints at).
  • wrecktangle - Thursday, February 3, 2005 - link

    any chance you could take a look at the m-audio revo 5.1? i've been looking for a review of this card for a long time. even a short update/comparison to the revo 7.1 would be great.

    on the whole, this review seems alright. kinda short though. definitely touch on recording quality in the future. maybe you could also stretch out the qualitative bit with some more music listening tests of other genres.

    is it just me, or are the spectrum plots missing?

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