Digital EQ? (Off Topic)

by Bert , Sunday, August 02, 2009, 22:34 (5379 days ago) @ Telstar

Hello Guido,

I dont do double conversion.

I did not say you do, I just agreed with your remarks here.

I run the equalization in the computer before going to the DAC. Some analog filters caNot be simulated, but it is possible to do things that caNot be done in analog (i.e. very high orders without any sound degradation or phase shift). I use a 96dB highpass for the Hemps, which relieves them completely of handing low freqs, where they distort a LOT. That and a 4db notch at 3k really did wonders.

If you need to go digital then this would be the best way to do but it can be done adequate analog too though, if you know how. Perhaps not as steep but with a properly designed 12dB analog passive crossover and the suggested notch at 3kHz will have the same effect (sufficiently limiting cone movement and taming the peak).

Digital EQ is easy and there are many options possible but do not forget that processing takes "energy" away from the PC....and since there are differences in sound (usually worse when the PC is doing harder work).

The more you "stress" the capacity of your PC, the worse the sound. I am not sure if it is the work done by the PC doing this or the unstable clock or introducing jitter anyhow by altering the bits for more or less amplitude at a certain frequency range...

This is an interesting explanation. CDP can sound as "digital" as a computer, but generally they sound better. Why? I think it's because of the interface. That's the real bottleneck of computers used a source.

Yes, A CDP but that is not what I was referring too... :wink:

A pci/pci-e internal card has theoretically the lowest jitter, but having the DACs in all that polluted environment is far from ideal.

Yep, I agree here but I have to say that I am not bothered having any real knowledge about the subject to discuss though but I do have my ears to agree with it or not...

Bert

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