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In Reply to: Low level resolution absent in DSD? posted by tenor39 on May 27, 2004 at 10:06:56:
Below is a thread where Christine observed the same behaviour.The cool edit statistic showed no samples below a certain level.
After she slapped a 6th order bessel filter at 20kHz the resolution showed up below that level.
With dsd it's a trade off between bandwidth or resolution.
In a practical setup without this filter there is indeed a loss of resolution. With a 50kHz filter (standard in most sacd players) it seems that the signal is not completely recovered from the noise floor.
I did some tests myself and found the noisefloor on some pure dsd recordings always at approximate -70dB* below full output.
*Not calibrated yet due to lack of pure dsd test signal disc.
Frank
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Follow Ups
- Re: Low level resolution absent in DSD? - Frank. 13:14:54 05/27/04 (20)
- Re: Low level resolution absent in DSD? - Tom Dawson 08:10:44 06/04/04 (0)
- no matter how high the ultrasonic noise... - tunenut 10:46:29 05/28/04 (18)
- No.... - Frank. 14:34:57 05/28/04 (17)
- Do you also hear this noise on "quiet" channels? - randyC 11:10:30 06/02/04 (1)
- Re: Do you also hear this noise on "quiet" channels? - Frank.. 14:55:30 06/03/04 (0)
- if you hear in band noise, it's nothing to do with DSD (NT) - tunenut 15:44:02 05/28/04 (14)
- Not true.... - Frank.. 16:39:46 05/28/04 (13)
- I know - tunenut 16:52:15 05/28/04 (12)
- Normal use... - Frank.. 12:06:21 05/29/04 (3)
- Analog mic preamp - RBP 13:06:31 06/01/04 (1)
- Re: Analog mic preamp - Frank.. 14:46:34 06/03/04 (0)
- I would have no problem accepting it.. - tunenut 13:52:40 05/29/04 (0)
- this is not new behaviour ... - Christine Tham 20:39:11 05/28/04 (7)
- Are you deaf? .... - Frank 11:52:24 05/29/04 (6)
- I am comparing against personal experience. are you? - Christine Tham 16:11:09 05/29/04 (5)
- Re: I am comparing against personal experience. are you? - Frank.. 02:53:08 05/30/04 (4)
- Re: I am comparing against personal experience. are you? - Christine Tham 13:53:34 05/30/04 (0)
- Re: I am comparing against personal experience. are you? - tenor39 05:22:23 05/30/04 (2)
- The opposite may be true, also - Eric LeRouge 08:04:47 06/01/04 (0)
- Re: I am comparing against personal experience. are you? - Christine Tham 14:20:51 05/30/04 (0)
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