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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: What's the math behind a digital volume control? posted by JayM on February 8, 2007 at 17:46:32:
Digital attenuation done with PCM truncates data. It is roughly 1 bit loss of resolution per 6dB attenuation. Some clever designs use dithering and wordlength expansion to minimize this effect, but it's still there.Regards,
Alex
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Follow Ups
- Re: What's the math behind a digital volume control? - Alex Peychev 19:01:47 02/08/07 (3)
- "truncation" - pls explain - JayM 21:00:19 02/08/07 (2)
- Re: "truncation" - pls explain - Werner 23:27:48 02/08/07 (1)
- There is also a question of to what degree the loss of resolution is audible. - PAR 06:53:54 02/10/07 (0)
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