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Topic: Audigy 2 ZS PCMCIA Possible to do BitPerfect SPDIF? (Read 2190 times) previous topic - next topic
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Audigy 2 ZS PCMCIA Possible to do BitPerfect SPDIF?

I've seen mixed posts. Some saying it's impossible and others say they have it working.

I've tried foobar2000 ASIO, Kernel Stream. WinAmp ASIO, ASIOForall, Kernel Stream.

PCM 44.1/16 CD comes through fine. But DTS CD's, WAV files with (DD or DTS) get digital noise.

One test is that KMixer Volume control should be bypassed if you have it setup correctly and it is still in effect.

Does the Audigy 2 ASIO driver from Creative work?

Audigy 2 ZS PCMCIA Possible to do BitPerfect SPDIF?

Reply #1 –
Hi,

I have an Audigy 2 ZS pcmcia connected to an Onkyo st-h790 through spdif.

Everything works perfectly fine.    DVDs, DTS files, wav/dts, audio dts, you name it.  And using foobar too.  No special configuration.    All I need is to enable the "Enable Bit Accurate Playback"  option.    The receiver automatically detects whatever DTS signal comes in.

Audigy 2 ZS PCMCIA Possible to do BitPerfect SPDIF?

Reply #2 –
Some comments.  I have two of these cards both in Dell laptops, one 6 years old and the other about 3.  I only play bit-for-bit ripped WAV files and set the card for 44.1/16. Comments refer to both PCs - I swapped cards with same results.

1 - Bit perfect won't stay checked.  Check it and reboot - gone.  I can't tell any difference in sound with it on or off.
2 - I use KS: kernel streaming - Asio4all wouldn;t work and then I just kept reselecting and restarting Foobar and it started working.  I can't tell any difference in sound quality.
3 - We are not getting bit-perfect as I hear a strange high-frequency artifact - extremely subtle but something is going on up there.  I have no clue why - some say Creative lies about up/down sampling others make odd comments - I have no idea, I just know that there is a difference in sound in the higher frequencies.  Overall the sound is very good.
4 - The jitter out of the card must be high.  I know this because I put an old Audio Alchemy DTI 32 Pro jitter reducer/reclocker between the card and my Accuphase DAC/CD player and it made a surprising improvement. (the high frequency artifact is there with or without this unit)
5 - Overall I am happy with these cards.

By the way, I am having a volume drop in one of my PCs that I don't believe is related to the cards as I swapped them with the same results - see my earlier posts.

Oh, and I have the audigy mixer disabled via windows - just in case as I am paranoid.  I use my DAC for volume control and Foobar is set a max volume.