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Post by starandchlorisse on Nov 24, 2016 16:00:19 GMT
Thank for all this info -
A question which might be silly for you.
I might have made almost the same mistake Ethan made - in a long recording narration session I realized that in the beginning my mic which has a converted was slightly red ;
then I corrected I lowered the input signal but I forgot to make a note or to discard the part I thought it might be distorting before.
/ I assume that I will be able to indentify it if it is distorted from the wave form or from sound and then I can delete this part if needed correct ?
(i am asking this question because i was wondering if clipping has happened before the signal is entered in the software would be visible in the waveform or only audible .?)
many thanks
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Post by rock on Nov 24, 2016 20:31:41 GMT
I never looked for it but I imagine you should be able to see clipping in a signal that was input to the interface converter that way. If you wanted to, it should be easy enough to run a test. Keep in mind if you have a tube preamp (or other fancy designs) designed for "soft clipping", the waveform may not have sharply clipped edges and flat tops but rounded edges. If so, the distortion is not harsh and may not be obviously noticeable as distortion. Actually, I have a little mic preamp project on the back burner (have not touched it in over a year) with a very simple design. As the signal level is increased into the non linear area, the first thing that you see (on a scope) is the signal becomes asymmetrical from crest to trough and then finally the tops and bottoms start to flatten. I don't know what is sounds like, I have not gotten that far:(
Funny thing, even though I have accidentally recorded levels a little over FS, I have never heard anything noticeable. I'm using reaper so IDK if there is some thing going on with the signal to automatically fix it but I guess I should test it and deliberately run measured signals over FS and see where I can hear the distortion.
Cheers, Rock
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Post by rock on Nov 24, 2016 21:38:38 GMT
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Post by Hexspa on Nov 25, 2016 3:44:38 GMT
In the upper right there's a gear icon with a drop down menu which includes "delete post".
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Post by Ethan Winer on Nov 25, 2016 17:33:57 GMT
even though I have accidentally recorded levels a little over FS, I have never heard anything noticeable. Right, the common belief that "digital" distortion is horrible and must be avoided at all costs is silly. Clipping is clipping, and being over 0 dBFS by a few dB here and there is not a big deal and can often be repaired anyway. I made an example Wave file that goes with my Audio Expert book to prove the point. I intentionally added "overs" of 2-3 dB on a gentle acoustic guitar recording. There is a slight difference between the original and the distorted copy, but it's very minor and certainly wouldn't be a deal breaker. Once the guitar is mixed with the rest of a track, it probably wouldn't even be noticeable at all.
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Post by Hexspa on Nov 26, 2016 0:30:06 GMT
even though I have accidentally recorded levels a little over FS, I have never heard anything noticeable. Right, the common belief that "digital" distortion is horrible and must be avoided at all costs is silly. Clipping is clipping, and being over 0 dBFS by a few dB here and there is not a big deal and can often be repaired anyway. I made an example Wave file that goes with my Audio Expert book to prove the point. I intentionally added "overs" of 2-3 dB on a gentle acoustic guitar recording. There is a slight difference between the original and the distorted copy, but it's very minor and certainly wouldn't be a deal breaker. Once the guitar is mixed with the rest of a track, it probably wouldn't even be noticeable at all. Agreed. They say you should really avoid it on the master buss for mixing. I guess that makes sense but I haven't tested it out. In any case you're supposed to leave headroom for mastering. -m
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