In Reply to: Do the math... posted by Frank.. on June 14, 2004 at 03:07:54:
*** Looking at the waveform isn't helpinf a lot as these graphs are rough estimates and not precise at the presented scale. ***Yes it is - I have the ability to zoom in to any precision in Cool Edit - far more precise than looking at statistics.
You are still confusing relative dynamics with dynamic range. They are NOT proportional to each other. relative dynamics is the difference in dB between any two points in a waveform. Dynamic range is the difference between the loudest signal and the noise floor.
Instead of arguing the point, why don't you do your own experiments and prove me wrong? All it takes is US$30 for the SACD and DVD-A, a US$100 soundcard and a universal player. You can download a trial edition of Adobe Audition, or Sound Forge but as I recall you already have Cubase.
Remember my assertion - any relatively "loud" point in the SACD recording is comparitively louder than the DVD-A in comparison to any relatively "soft" point in any part of the entire recording. Just don't select a soft point less than -60dB or so or you'll run into DSD ultrasonic noise.
The differences in relative dynamics between any two points can be up to 1-1.5dB - audibly significant.
Remember from digital sampling theory what i've empirically measured is actually possible. Remember that the analog reconstruction can have peaks higher than the highest digital sample. So it follows that different sampling rates can give rise to different reconstructions, which differ in relative dynamics.
One point of note: I am *not* saying the SACD recording is "better" than DVD-A, merely that it exhibits higher relative dynamics. It could well be that the DVD-A recording is accurately reflecting the "true" dynamics and the SACD is "exaggerating" dynamics. For example Dolby Digital exaggerates transients - that's why Dolby Digital always sound "punchy" in comparison to PCM.
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Follow Ups
- Re: Do the math... - Christine Tham 03:31:44 06/14/04 (17)
- Dolby - The Sound Guy 05:43:09 06/15/04 (1)
- Re: Dolby - Christine Tham 14:50:07 06/15/04 (0)
- Re: Do the math... - Frank.. 04:46:40 06/14/04 (14)
- Re: Do the math... - Christine Tham 05:19:03 06/14/04 (13)
- Re: Do the math... - Frank.. 06:05:30 06/14/04 (12)
- Did you actually read the AES paper? (nt) - Christine Tham 06:25:20 06/14/04 (11)
- Not yet.... - Frank.. 07:38:44 06/14/04 (10)
- Try reading the AES paper before posting any further (nt) - Christine Tham 14:05:33 06/14/04 (8)
- Found it. - Frank.. 06:24:13 06/15/04 (7)
- Thanks for taking the effort to find it and read it - Christine Tham 16:40:58 06/15/04 (6)
- Re: Thanks for taking the effort to find it and read it - Frank.. 01:01:42 06/16/04 (5)
- Re: Thanks for taking the effort to find it and read it - Dan Banquer 02:18:32 06/16/04 (1)
- Sadly... - Frank.. 03:06:53 06/16/04 (0)
- Re: Thanks for taking the effort to find it and read it - Christine Tham 01:29:10 06/16/04 (2)
- Believe what you like... - Frank.. 03:11:53 06/16/04 (1)
- Re: Believe what you like... - Christine Tham 04:43:44 06/16/04 (0)
- If someone Googles "Diana Krall" and finds this thread, they're in for a surprise ( nt :) - Eric LeRouge 08:37:51 06/14/04 (0)