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In Reply to: "A 1 dB change in volume is the smallest difference that a human can detect!" posted by Metralla on March 29, 2014 at 10:19:33:
"Why would you say that?"
I don't know why, but it's clearly incorrect. 1 dB is well over the threshold of what I can hear. I just ran a test and when white noise takes a volume jump of +0.5 dB or -0.5 dB the transition is noticeable as an increase or decrease in volume. I would guess that most people can hear differences down to a threshold between 0.1 dB and 1.0 dB.
The article is incorrect in other respects. The dynamic range for 16 bit audio is not 96 dB if the audio is dithered properly. If this is done, then another 6 dB is lost, which reduces the range to 90 dB. Worse, if complex music is recorded without any limiting or compression, there will be a peak to average ratio of about 20 dB due to wave crests. If these are to be handled without clipping the 0 VU level needs to be set at -20 dBfs. This takes the dynamic range down to about 70 dB.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups
- RE: "A 1 dB change in volume is the smallest difference that a human can detect!" - Tony Lauck 11:15:59 03/29/14 (3)
- What do you recommend for Peak - oldmkvi 12:02:17 03/29/14 (2)
- RE: What do you recommend for Peak - Tony Lauck 13:31:14 03/29/14 (1)
- RE: What do you recommend for Peak - oldmkvi 14:29:44 03/29/14 (0)
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