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Recording Enhancements Pack

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BayTaper:

--- Quote from: Wolf on August 09, 2006, 11:21:11 AM ---Very interesting BayTaper. I also bougth my H140 mainly for recording live gigs and this information helps to get hi quality recordings.

Do you by any chance has any screenshots documenting your analysis?
Thx, Wolf.

--- End quote ---

Note the flat tops that are not occuring at 0 db. All the neg gain did was scale it down but left the clipping there (which is honestly exactly what I expected it to do). So, for me, once I confirm that, my thinking is that I'd never use the "negative" side of the gain structure because I'm only making things worse than they already are. And if I wasn't actually clipping, then I don't think I would ever want to lower the gain on-the-fly, when I can just do that in post with (arguably) a better algorithm than the H120 is using.

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Wolf:
Thx again BayTaper. The image suggest that the gain reduction is applied after the ADC adquired the (already clipped) signal. I didn't expect that.
Will probably make some tests on my own with test signals and see what I can get.

Thx. Wolf.

petur:
I just did a small test:

- disabled gain
- set gain to 0
- increase input signal until the peakmeters reach 0 dB and then give it a bit more
- decrease recording gain until peakmeters are below 0 dB

after step4 the waveform looked like this (scale in dB, gain set at -5 dB)

Davide-NYC:
I think the difference was that BayTaper's input signal was strong enough to clip when the unit was set at 0db 'volume' and 0db 'gain'.
Petur, was your input signal strong enough?
I am willing to do some testing as well.
Let me know what you want done exactly.

BayTaper:
Yeah, let there be no doubt, I was sending a signal that was clipping the hell out of the iRiver with the sole purpose to try to understand WTH negative gain was going to do with it. It pretty much did exactly what I was expecting it to, it lowered the gain of the clipped signal. Now, it seems like Petur did the exact same thing as me, so I'm a bit perplexed why his waveforms look so nice and round. :) But, not sure if Petur was really clipping hard enough to really tell, and in my waveform pic above, you can see I "zoomed" way into the waveform (down to the individual sample, you can see the "dots") to take a closer look.

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