Support and General Use > Recording
Tips on recording for a newbie
blindhippie:
--- Quote ---Try normalizing the file before splitting the tracks.
--- End quote ---
I did that already. But since the second half of the show is at the right level, it didn't change the beginning much.
--- Quote ---Set the gain of the pre-amp so that your signal reaches around 0dB with the gain on your iriver set to 10dB, that gives you 10dB headroom the AGC-safety can use.
--- End quote ---
So I set the pre-amp gain so that the meters are at the clipping point and then set the iRiver gain to +10dB and that *lowers* the levels to allow 10dB headroom? That sounds backward (but everything seems backward when 0 is loudest volume).
Thanks for such quick responses btw. y'all rock! (that's how we say it down here in Atlanta).
whatboutbob:
That's not quite what petur meant.
He means set the iriver to +10dB, then adjust your preamp so that levels are about 0dB (though I would suggest setting it just a tad lower than that - maybe -3 or -5dB). So the combination of gains from the iriver pre and the external pre take it up to around 0dB.
That way, using safety AGC, if the gig is louder than anticipated the AGC has 10dB headroom to decrease the gain if need be, so that you don't get distortion.
As far as salvaging the existing recording - 'tis a good lesson on why to stay away from AGC if possible (the only time i use agc is in a situation where i know I won't be able to check levels - i set safety agc just in case I've set the levels too high).
Its going to be a pain in the arse to bring the levels back up. The only time I've had to do this was when I adjusted levels manually in the middle of a set. I knew how much gain I'd applied so I simpy normalised the "pre-gain" quiet section by that amount , then did a crossfade between the two. Took a bit of fiddling. Would hate to have to do this over multiple incremental gain increases, but as far as I can see that's what you'd have to do.
petur:
sorry for being so confusing ;)
what I wanted to say:
I try to set my pre-amp gain so that during a concert, my levels are just below 0dB (ie max level) with the iriver gain set to +10dB (or +15dB for even more safety)
This way, if the concert somehow gets louder than expected, I still have 10dB margin.
Getting the levels right is something to be done during the first concert, after that just remember how the pre-amp was set.
I see whatboutbob got before me but I'll post this anyway :p
petur:
--- Quote from: whatboutbob on January 31, 2007, 03:40:08 AM ---As far as salvaging the existing recording - 'tis a good lesson on why to stay away from AGC if possible (the only time i use agc is in a situation where i know I won't be able to check levels - i set safety agc just in case I've set the levels too high).
Its going to be a pain in the arse to bring the levels back up. The only time I've had to do this was when I adjusted levels manually in the middle of a set. I knew how much gain I'd applied so I simpy normalised the "pre-gain" quiet section by that amount , then did a crossfade between the two. Took a bit of fiddling. Would hate to have to do this over multiple incremental gain increases, but as far as I can see that's what you'd have to do.
--- End quote ---
One tip is to use audacity's envelope tool to gradually change gain over time.
blindhippie:
Thanks, that makes sense now. I am going to try to normalize the individual songs and see how that works. I'll look into Audacity, too.
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