Hello. Just for fun I ran some tests on my soundcards (maudio which I have about a year and onboard soundcard).

I would like to know is it normal that my maudio card has "Frequency response (from 40 Hz to 15 kHz), dB +0.00, -0.00 " ??

Should probably run the AC97 card in 48KHz mode, since otherwise you're mostly testing it's resampler not the DAC.

I know but most music is in 44hz, so i don't mind that.

I get slightly worse values for all measurements, for frequency response it's +0.02, -0.07.

So either my setup is worse (power supply, e.g.) or something's wrong on your side. 0.00 look suspiciously
good. Maybe you're using some kind of audiophile cable :-). If you search the web, you'll find other's results - but I haven't found a 0.00.

Maybe you should check that really external loopback is used for testing (don't know offhand if the card has some kind of internal loopback). If the test works with the external cable removed, there's obviously something wrong. Otherwise you should just be happy to have such good measurements.

"Maybe you're using some kind of audiophile cable :-)"

no , i used cheapset cables i could find on maudio.


"Maybe you should check that really external loopback is used for testing "

but ac97 i did without cable. and cant run maudio test without cable.

Your frequency response is completely flat, whereas for others there's a slight dropoff at the beginning and at the end.

Any chance that you've used digital input/outputs? If not, I can't think of any other reason. But I guess it's nothing to worry about. Maybe you got the best Audiophile 2496 ever manufactured.

"Any chance that you've used digital input/outputs?"

no, just usual rca connector.

but how i could ran ac97 test without cable?

Are you sure it was 16bit? Noise level and Dynamic range should be lower @ 16 bits, about 96dB max.

Depends on the driver I guess. But it boils down that you use the wav output (or whatever it is called) instead of the line-in as recording device