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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: "Zero-Stuffing"..... posted by Todd Krieger on February 24, 2007 at 17:52:39:
HowdyPerhaps you didn't notice that I said "Just as a refresher of SSRC, conceptually you upsample by the numerator of your ratio, then filter out everything over 1/2 of the lowest of the input clock rate and the output clock rate and then down sample by the denominator."
It's that filtering that does your interpolation. There are of course other methods of interpolating but they are heuristics. The method I outlined is the mathematically correct one...
-Ted
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Follow Ups
- Nope - Ted Smith 18:02:46 02/24/07 (32)
- Re: Nope - Todd Krieger 18:28:37 02/24/07 (31)
- Oh, we could be zeroes, just for one day ... - Werner 00:26:29 02/26/07 (13)
- Re: Oh, we could be zeroes, just for one day ... - Todd Krieger 10:52:10 02/28/07 (11)
- You might be interested in this ... - Christine Tham 14:32:14 02/28/07 (10)
- Re: You might be interested in this ... - Werner 23:28:55 02/28/07 (9)
- Re: You might be interested in this ... - Christine Tham 23:48:47 02/28/07 (8)
- Re: You might be interested in this ... - Werner 03:18:08 03/01/07 (7)
- Re: You might be interested in this ... - Christine Tham 13:26:53 03/01/07 (6)
- Re: You might be interested in this ... - Werner 00:07:15 03/02/07 (5)
- Re: You might be interested in this ... - Christine Tham 16:58:49 03/02/07 (4)
- Re: You might be interested in this ... - Werner 00:31:32 03/05/07 (3)
- Re: You might be interested in this ... - Christine Tham 14:58:30 03/05/07 (2)
- Re: You might be interested in this ... - Werner 23:41:41 03/05/07 (1)
- Re: You might be interested in this ... - Christine Tham 14:10:30 03/06/07 (0)
- :) [nt] - Ted Smith 17:55:16 02/26/07 (0)
- I'm talking about SSRC not oversampling.... - Ted Smith 18:45:30 02/24/07 (16)
- They're One and the Same!!!! - Todd Krieger 19:10:58 02/24/07 (15)
- Wrong, zero stuffing and filtering do exactly the right thing - Ted Smith 02:22:38 02/25/07 (9)
- The Problem is Context and Confusion..... - Todd Krieger 11:58:45 02/25/07 (8)
- Re: The Problem is Context and Confusion..... - Ted Smith 14:04:16 02/25/07 (0)
- And Most-Importantly..... - Todd Krieger 12:11:30 02/25/07 (6)
- Re: And Most-Importantly..... - Ted Smith 13:55:47 02/25/07 (5)
- I can see why he drove real_jj mad :-) (nt) - Christine Tham 13:59:36 02/25/07 (4)
- Yep :-) - Ted Smith 14:07:26 02/25/07 (3)
- Including me, I presume? (nt) - Christine Tham 14:26:24 02/25/07 (2)
- Hmmm, I don't remember :) [nt] - Ted Smith 14:29:43 02/25/07 (1)
- Very diplomatic :-) - Christine Tham 14:35:01 02/25/07 (0)
- Believe it or not, zero-stuffing followed by a digital filter works - Christine Tham 21:50:17 02/24/07 (4)
- Now I See the Origin of the Confusion...... - Todd Krieger 00:45:25 02/25/07 (3)
- Wow. I think you are the one that is confused - Christine Tham 13:46:04 02/25/07 (2)
- Re: Wow. I think you are the one that is confused - Todd Krieger 15:13:01 02/25/07 (1)
- Yeah - I hear you :-) - Christine Tham 15:50:41 02/25/07 (0)
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