In Reply to: RE: To Dither or Not to Dither? J. River/PonoMusic World posted by Archimago on April 15, 2016 at 16:13:12:
It should be possible to measure the distortion products added to low level test tones on the analog outputs of any of the SABRE chip based DACs. Most of these are pretty linear at low levels, so the distortion ought to show up out of the noise, especially when spectrum are computed over long averaging periods, which will reduce the residual noise of the DAC chip and output amplifiers.
You may need a low noise preamp to boost the output level of the DAC so that the noise and distortion products are well within the resolution of your ADC.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 04/16/1611:32:42 04/16/16 (32)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Archimago 08:31:19 04/17/16 (31)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 11:53:43 04/17/16 (29)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Ugly 13:31:44 04/17/16 (28)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 14:26:34 04/17/16 (27)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Archimago 17:41:35 04/19/16 (15)
- my comment is that it's just not audible anyways - fmak 12:48:34 04/23/16 (0)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Jaundiced Ear 22:25:05 04/19/16 (13)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 08:49:58 04/20/16 (12)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Jaundiced Ear 23:03:19 04/20/16 (1)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 08:50:30 04/21/16 (0)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Ugly 20:20:01 04/20/16 (9)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 08:42:09 04/21/16 (5)
- After 15 edits and deletes, maybe this is finally close to what I mean. - Ugly 11:56:41 04/23/16 (4)
- RE: After 15 edits and deletes, maybe this is finally close to what I mean. - Tony Lauck 14:44:37 04/23/16 (3)
- Crookwood says 20-30dB into the noise is possible. - Ugly 15:09:29 04/25/16 (2)
- RE: Crookwood says 20-30dB into the noise is possible. - Tony Lauck 12:10:22 04/26/16 (1)
- RE: Crookwood says 20-30dB into the noise is possible. - Ugly 21:09:25 04/26/16 (0)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Jaundiced Ear 23:28:30 04/20/16 (2)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Ugly 09:13:31 04/21/16 (1)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 09:36:10 04/21/16 (0)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Jaundiced Ear 23:12:30 04/17/16 (6)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Tony Lauck 14:36:22 04/19/16 (1)
- RE: To Dither or Not to Dither? J. River/PonoMusic World - Jaundiced Ear 20:22:44 04/19/16 (0)
- supposedly a measurement guy? - fmak 05:46:42 04/18/16 (3)
- RE: supposedly a measurement guy? - Mercman 07:33:55 04/18/16 (2)
- RE: supposedly a measurement guy? - Jaundiced Ear 21:09:05 04/18/16 (0)
- RE: supposedly a measurement guy?have you - fmak 07:56:53 04/18/16 (0)
- rebutting Archimago's claim - fmak 21:47:13 04/17/16 (3)
- Low Level Detail - Mr_Steady 18:19:38 04/19/16 (2)
- RE: Low Level Detail - Tony Lauck 09:30:50 04/20/16 (1)
- RE: Low Level Detail - fmak 06:08:10 04/22/16 (0)
- I don't believe it makes an audible difference - fmak 11:28:03 04/17/16 (0)