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cool edit pro keeps distorting, help anyone know why and how to stop?
dyluk1
post Oct 27 2011, 21:03
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Hi

I am using cool edit pro 2.1 and some finished songs are fine as sessions and fine as mp3 mixdowns- then randomly they start to distort and crackle and all saved playing and wavs are lost in a total mess of distortion and crackle....anyone know why and how to stop it?

Its random...and doesnt happen every time- I have used it for years and years and its only just started doing it.

I have unistalled and re-installed in case that helped and it hasnt..

any feedback woudl be appreciated...all my back catalogue is on cool edit so yes i know i can use another daw and am slowly transferring my old tracks over to cubase but still need to solve this issue
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DVDdoug
post Dec 2 2011, 23:45
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NOTE - I don't use CoolEdit or Audition, but I'm still NOT convinced there's a bug.

QUOTE
But after I do a mixdown (to create the MP3 file), SOME songs suddenly have distortion - sounds like crackling....

...If you figured out what causes this distortion (maybe something embedded in the track itself?) - because I have found that it occurs for some of the tracks when I tried to re-add/re-mix the track.
Like I said above, when you mix the files/tracks are added together. That increases the amplitude (volume). If the volume is too high and the peaks go over 0dBFS (the digital "maximum") you can get clipping (distortion) when you save in certain formats (like regular integer WAV).

The solution is simply to reduce the levels before mixing, or after mixing (i.e. normalize), and before saving, so that the peaks do not exceed 0dB. (Or, you can use dynamic compression to reduce the peaks while maintaining the overall volume-level.)

It's a good idea to normalize (or at least check your peak levels) after any processing (and always before saving).

If you are not watching your levels, you've probably got clipping in lots of your mixes, although you might not always be hearing it.

QUOTE
I have heard that Adobe Audition (the latest version) actually removed many of the features of the original Adobe Audition/CEPro.
I'm sure Adobe has also added quite a few features since they bought-out CoolEdit several years ago. And, you've got plenty of other choices. But, mixing is always done by summation by all analog & digital mixers so you are always in danger of clipping/distortion if you don't watch your levels!!!! (Although, analog mixers usually have more headroom, and people are more likely to take advantage of the master slider and watch the meters on an analog mixer.)

This post has been edited by DVDdoug: Dec 2 2011, 23:53
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rmb234
post Dec 7 2011, 05:52
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QUOTE (DVDdoug @ Dec 2 2011, 17:45) *
NOTE - I don't use CoolEdit or Audition, but I'm still NOT convinced there's a bug.

Like I said above, when you mix the files/tracks are added together. That increases the amplitude (volume). If the volume is too high and the peaks go over 0dBFS (the digital "maximum") you can get clipping (distortion) when you save in certain formats (like regular integer WAV).

The solution is simply to reduce the levels before mixing, or after mixing (i.e. normalize), and before saving, so that the peaks do not exceed 0dB. (Or, you can use dynamic compression to reduce the peaks while maintaining the overall volume-level.)

It's a good idea to normalize (or at least check your peak levels) after any processing (and always before saving).

If you are not watching your levels, you've probably got clipping in lots of your mixes, although you might not always be hearing it.


@DVDDoug - your input is very much appreciated. Thank you.

Can I bother you with a question (probably a basic one but I don't know much about sound terminology). When I add different tracks/mp3s/waves/etc. and start crossfading, I do notice that the amplitude (volume) of each track can be (and often is) different. What I have been doing is manually highlighting each track that has a low volume and applying the "Constant Amplification" feature to increase say by 5db or 3db, etc. Is there a way to highlight the entire string of tracks (all the tracks in the session) and "normalize" or make the amplification all the same? Can CEPro do that? If so could you direct me to the menus? Basically I want a full mix which has say "x' number of tracks, but they all have the same volume level - right now I manually increase the volume using constant amplification on a track by track basis and its very primitive as my ear can only sense large changes in track to track volumes.

Regarding your comments on Audition - you are probably right as I was speaking from hearing rumours only.

Thank you.
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Posts in this topic
- dyluk1   cool edit pro keeps distorting   Oct 27 2011, 21:03
- - 2Bdecided   I bet you it's a PC hardware fault that nothin...   Oct 27 2011, 21:52
- - DVDdoug   I don't use CEP... Is there a tool or function...   Oct 27 2011, 22:12
- - dyluk1   QUOTE (2Bdecided @ Oct 27 2011, 21:52) I ...   Oct 28 2011, 10:56
- - Arnold B. Krueger   QUOTE (dyluk1 @ Oct 27 2011, 16:03) Hi I...   Oct 28 2011, 13:55
- - dyluk1   no that isn t the problem- same on other systems w...   Oct 28 2011, 17:46
- - DVDdoug   If you really think there's something wrong wi...   Oct 28 2011, 18:25
- - mixminus1   Cool Edit -> F4 (Settings) -> Devices. What...   Oct 28 2011, 18:30
- - 2Bdecided   Do you mean that you load a wav into CoolEdit, do ...   Oct 31 2011, 11:37
- - bennetng   You said that you reinstalled XP. Which service pa...   Nov 2 2011, 04:40
- - 2Bdecided   CEP seems perfectly happy on XP SP3. That was 2008...   Nov 2 2011, 12:28
- - botface   I agree with 2Bdecided. I'm still using XP (Ho...   Nov 2 2011, 13:38
- - AndyH-ha   It may not be totally relevant, but I am using Coo...   Nov 2 2011, 20:54
|- - rmb234   Hi there, I have the exact same problem. I add tr...   Dec 2 2011, 05:10
- - DVDdoug   NOTE - I don't use CoolEdit or Audition, but I...   Dec 2 2011, 23:45
|- - rmb234   QUOTE (DVDdoug @ Dec 2 2011, 17:45) NOTE ...   Dec 7 2011, 05:52
|- - botface   QUOTE (rmb234 @ Dec 7 2011, 05:52) Is the...   Dec 7 2011, 10:04
|- - rmb234   another question friends: in CEPro, i notice that...   Jan 20 2012, 03:27
|- - 2Bdecided   QUOTE (rmb234 @ Jan 20 2012, 02:27) does ...   Jan 20 2012, 11:25
- - resmeltoma   distortion is of horrible magnitude.   Dec 3 2011, 10:56
- - AndyH-ha   Had you provided a short clip (maybe 10 to 15 seco...   Dec 3 2011, 11:42
- - cpam   i also have this distortion problem.   Dec 7 2011, 06:52
- - AndyH-ha   QUOTE the file sizes are much smaller than what th...   Jan 20 2012, 08:16
- - 2Bdecided   QUOTE (AndyH-ha @ Jan 20 2012, 07:16...   Jan 20 2012, 11:29


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