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The 1bit dac

post #1 of 9
10/17/11 at 7:35am
Thread Starter 

http://en.wikipedia.org/wiki/1-bit_DAC

 

I was wondering how does it compare to a 16bit bit dac and which is better?.

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post #2 of 9
10/18/11 at 2:35pm

single bit delta sigma dacs are very noisy. Most of us won't consider it at all. If you want to learn more, this is a good article: http://www.mother-of-tone.com/conversion.htm

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post #3 of 9
10/18/11 at 8:14pm
Quote:
Originally Posted by ujamerstand View Post

single bit delta sigma dacs are very noisy. Most of us won't consider it at all. If you want to learn more, this is a good article: http://www.mother-of-tone.com/conversion.htm



One of these is a 2000 Single bit CD player, the other is a modern 16 bit  player both from the same manufacturer

 

Signal-to-noise ratio: 110 dB

 

 

Signal to noise ratio, A Wtd. . 110 dB

 

 

 

 

 

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post #4 of 9
10/18/11 at 8:53pm
Quote:
Originally Posted by ujamerstand View Post

single bit delta sigma dacs are very noisy. Most of us won't consider it at all. If you want to learn more, this is a good article: http://www.mother-of-tone.com/conversion.htm


And I would take whatever comes from this website with a grain of salt:

 

http://www.mother-of-tone.com/mother.htm

Quote:

According to the Law of Attraction (like attracts like), the sound-character of a material that comes close to your own material is pleasing, whereas a sound character starts to hurt, the less the sound emanating material has to do with your own cellular material.

This is a simple realization, but you can explain a whole musical world with it. The characteristic construction and material of your ear is the yardstick, and the more a sound comes close to that characteristic, the better you feel and the more you are attracted to that sound.

 

 

 

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post #5 of 9
10/18/11 at 9:11pm

i've had a rega cd player that came with 1-bit dacs, one on each channel. The sound of this player was very "analogue" and quite dark sounding... very much the headphone equivalent of the Senn HD650 or LCD-2. not sure about hearing noise-to-signal ratio, the music from this player was very enjoyable. of course there are other components along the chain, but I'm quite sure the 1-bit dacs had a lot to do with the sound.

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post #6 of 9
10/21/11 at 4:09am
Thread Starter 

I'm acuallty trying to choose between cd players, http://www.teac.co.uk/products/separates-PD-D2620.php has the 1bit dual dac, claims signal to noise of over 100db, but is 20hz-20khz -+2 which is more frequency roll off than my speaker amp, my speaker amp is 20hz-20khz -+0.5 and it has a much harder job, the other is a http://www.us.onkyo.com/model.cfm?m=DX-C390&class=Compact Disc&p=s , it has a 24bit dac, claims 5 Hz-20 kHz which I would guess is -/+3db, signal to noise is 96db. I currently have a phillips cd630 which has 2x 16bit chips and claims 2hz-20khz which i would guess is -/+3db, and claims 110db signal to noise. I'm replacing the phillips because it's digital out doesn't work with my emu-404 and it only holds 1 cd but I don't want to replace it with something that is worse.

 

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post #7 of 9
10/21/11 at 6:35am

But is it "true" 24-bit, or a 1-bit DAC that claims to achieve the resolution of 24-bit?

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post #8 of 9
10/21/11 at 9:46am
Thread Starter 

The onkyo by the way it's worded I think has a real 24bit dac.

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post #9 of 9
10/21/11 at 10:18am
Thread Starter 

I think I will go with the teac after looking into Onkyos VLSC http://www.diyaudio.com/forums/digital-source/116842-onkyo-vlsc-vector-linear-shaping-circuitry.html .

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