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In Reply to: in other words, you had no basis for saying that i had "faulty logic" posted by Christine Tham on February 16, 2005 at 00:09:03:
<< Incorrect. If the same ADC converter is used, both 16-bit and 24-bit versions are decimated from the same sigma-delta modulated stream. any noise and distortion (eg. quantization error) is determined by the sigma-delta modulation and not by the final output format. >>So if we output to say 8-bits, it's your view that the 8-bit version would be no more noisy than the 24-bit version?
Obviously that can't be right. The format determines the noise if the inherent noise of the format is greater than the noise of the converter.
<< the only difference is the 16-bit version discards any information below 16-bit. >>
Sort of. Unless the converter is broken, it uses dither, not truncation. (Re-)quantization adds noise. It's not a lossless process (this is true even if the converter is perfect). Sampling at 24-bits is less lossy than sampling at 16-bits, assuming the converter is capable of providing better than 16-bit performance.
<< like i said, if you disagree, please provide proof in the form of validated double blind testing results. >>
I'm not the one making subjective claims. You made a statement about the audibility of 16-bit vs. 24-bit, which I did not argue with. I disputed the logic that if the 24-bit version sounds better than the 16-bit version, it must be because the source is somehow superior to 16-bits.
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Follow Ups
- Re: in other words, you had no basis for saying that i had "faulty logic" - Max 02:48:28 02/16/05 (20)
- Re: in other words, you had no basis for saying that i had "faulty logic" - Christine Tham 11:29:17 02/16/05 (19)
- Dither/truncation - Max 16:50:39 02/18/05 (16)
- Isn't Dither "analog" like noise added at low levels to "smooth" out the signal to make PCM listenable? - Teresa 01:48:38 02/19/05 (12)
- Re: Isn't Dither "analog" like noise added at low levels to "smooth" out the signal to make PCM listenable? - Christine Tham 02:54:35 02/19/05 (11)
- Re: Isn't Dither "analog" like noise added at low levels to "smooth" out the signal to make PCM listenable? - Max 04:31:19 02/19/05 (10)
- Re: Isn't Dither "analog" like noise added at low levels to "smooth" out the signal to make PCM listenable? - Christine Tham 11:25:19 02/19/05 (9)
- I did what you asked - Max 15:13:15 02/19/05 (8)
- Re: I did what you asked - Christine Tham 22:38:46 02/20/05 (7)
- Coming closer to agreement, maybe - Max 06:25:43 02/21/05 (6)
- Re: Coming closer to agreement, maybe - Christine Tham 13:01:40 02/21/05 (5)
- Re: Coming closer to agreement, maybe - Max 14:59:37 02/21/05 (4)
- Re: Coming closer to agreement, maybe - Christine Tham 23:54:15 02/21/05 (3)
- Re: Coming closer to agreement, maybe - Max 05:01:07 02/22/05 (2)
- still waiting for the validated double blind tests - Christine Tham 12:40:21 02/23/05 (1)
- some explanation to help you understand why your point about "boosting" is invalid - Christine Tham 18:38:03 02/23/05 (0)
- like i said - go and understand how a sigma delta ADC works - Christine Tham 23:09:46 02/18/05 (2)
- Re: like i said - go and understand how a sigma delta ADC works - Max 04:14:37 02/19/05 (1)
- for the final time, go and do research before posting further (nt) - Christine Tham 11:08:42 02/19/05 (0)
- Noise does not add? - Max 16:36:25 02/18/05 (1)
- Not significantly: -80dB + -96dB = -79.9dB (not audible) (nt) - Christine Tham 22:59:58 02/18/05 (0)
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