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Author Topic: Making a “matrix” and choice of software?  (Read 5610 times)

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Offline Sebastian

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Re: Making a “matrix” and choice of software?
« Reply #15 on: November 03, 2009, 03:40:34 PM »
I just mixed my first matrix in almost two years. It was the first time I used Apple's Logic for such a thing and I must say I'm really impressed. All I had to do was to line up the beginnings of the two sources, then use Logic's "Flex" view to add markers on one of the sources. Then I dragged these Flex markers to compensate for any drifting in the two sources and Logic did all the syncing/time stretching for me.

Offline junkyardt

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Re: Making a “matrix” and choice of software?
« Reply #16 on: November 21, 2009, 09:46:22 PM »
i've got a question related to matrixes in Cool Edit Pro, hopefully there's an easy answer and i just don't know where to look. ok, this first part isn't really directly related but i'm just laying out the concept i'm after--i have an issue with my Denecke PS-2 that causes very brief channel dropouts if i bump one of the XLR connectors while recording. so, to fix these dropouts (usually just for a fraction of a second), i just highlight the small section i want, go to channel mixer in CEP and patch the left channel to the right or vice versa to eliminate the bad channel. so for that fraction of a second i'll have 2-channel mono, but that's of course better than having one channel mono with one channel completely missing.

so...now i'm matrixing 2 sources and i've got the time stretch figured out and the sync itself is done pretty well, but one of these sources has some small issues here and there that, like the channel dropouts i mentioned, also only occur for a fraction of a second. and they are pretty annoying. so basically i'd like to be able to look at the matrix in multitrack view before saving the mixdown, and go through it and wherever the issues occur, highlight that small section of the mix and specify that the mix should only contain one of the two sources for that fraction of a second (the non-problematic one obviously). so i know the concept i'm after (what i described in the first paragraph regarding 2 channels of one source) but i can't seem to find what feature in CEP i should use to accomplish a similar result when dealing with 2 sources. can anyone point me in the right direction here?

Offline bobcat

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Re: Making a “matrix” and choice of software?
« Reply #17 on: November 22, 2009, 03:02:29 PM »


 join the club! i just attempted to 'matrix' a recording of mine and the first 5 tunes i got pretty easy.only by cutting up the file at the beginning and basically getting lucky..

 im having a lot of problems though. i dont know how to sync them up in adobe. im reading about time stretching and this and that...can someone piont me in the right direction a little? i guess u have to go to the 'EDIT' section of the program and do one track at a time?? its just confusing the way it works,,but i really want to do this..!   hope someone can help out a bit.

 cheers.

kirk97132

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Re: Making a “matrix” and choice of software?
« Reply #18 on: November 22, 2009, 03:18:26 PM »
JumkyardT...you can accomplish things like that by opening an automation lane for the track you want excluded and put markers in at that point.  I'm not where I can check on my Audition but I think you can have it turn mute on and off.  If not you can just drop the volume down for those sections. 

bobcat...you can only stretch/shrink one track at a time.  And yes you have to do it in edit view in Audition.  As for syncing sources recorded on same recorder(IE:4track)  insert them in multitrack and then drag sources so that peaks line up.  Assuming that you are trying to overcome something like the mics back in room and sbd issue.  If it is two different sources you will need to get them to the same length(stretch/shrink).

Offline bobcat

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Re: Making a “matrix” and choice of software?
« Reply #19 on: November 22, 2009, 04:48:16 PM »

 thanks kirk for your help. i got the stretch part going on i think properly. ...wll see how this goes..its a pain in the ass to matrix no matter what way u look at it..god.. :/ i wont be doing this very often at all..im sort regretting it already :S

kirk97132

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Re: Making a “matrix” and choice of software?
« Reply #20 on: November 22, 2009, 05:16:45 PM »
I found that no matter what calculations I treid it still comes down to trial and error getting the settings right.  What I have found is that no matter what recorders I've used the differences were never more than 0.006%.  Hope that helps

Offline bobcat

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Re: Making a “matrix” and choice of software?
« Reply #21 on: November 22, 2009, 05:34:37 PM »

 i hope so too man, what im mixing is two recordings off MD of the same show. one thing i noticed..i got a couple pops in a few tunes i made..i wonder why that is? they arent on the original files..just the matrix.. hmm

 also is it normal that  the 'mixdown' file once u matrix is in 20HZ? in the settings thats the default. just wondering if my conversion to 14hz has anything to do with that.. doubt it but who knows..this is very complex! but i want to do it right!

 
« Last Edit: November 22, 2009, 05:36:16 PM by bobcat »

kirk97132

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Re: Making a “matrix” and choice of software?
« Reply #22 on: November 23, 2009, 12:47:00 PM »

 i hope so too man, what im mixing is two recordings off MD of the same show. one thing i noticed..i got a couple pops in a few tunes i made..i wonder why that is? they arent on the original files..just the matrix.. hmm

 also is it normal that  the 'mixdown' file once u matrix is in 20HZ? in the settings thats the default. just wondering if my conversion to 14hz has anything to do with that.. doubt it but who knows..this is very complex! but i want to do it right!

I use: File > Export > audio mixdown Depending on what I'm doing I either save it in the 32 bit 48Hz.  I record in 24/48.  I dunno what you are talking about with the 20 and 14 Hz settings.  Is that what a mini disc uses?  You set all that stuff any way you choose.  So it's up to you.  I can't answer you question about pops.  But remember when mixing you are summing the signals (adding them) so if each recording has a high peak in the same spot the mix could have an even higher peak.  You want to make sure you mixdown isn't clipping the signal.  Read up on the sticky at the top of this thread. 

Offline notsofast

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Re: Making a “matrix” and choice of software?
« Reply #23 on: November 23, 2009, 03:25:29 PM »
I intially had some clicks/pops in my intial efforts to do a matrix. In working with Easyjim I came to realize that I was experiencing phase issues. I went back and did more playing with it and they did go away as I got the sync down. Math + (trial + error) = results.

I woulsd also say one of my leassons learned was during the mix down to be cautious on out put levels, I ran -6 to be safe. Again advice from others said I could compensate post mix down and I found that worked nicely for me.

I want to thank all for this info share, it has helped a lot.

Tim
"Please post the show - I don't think it sucked, which is my normal rule for show postings" Dave Alvin

Offline bobcat

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Re: Making a “matrix” and choice of software?
« Reply #24 on: November 23, 2009, 03:30:23 PM »
 actually i found out what the 'pops' were. in adobe it saves the mixdown as 32 bit. i meant 26HZ as in what it says in winamp for the HZ..its either 26 or 28.. cant read it really in that small box..

anyway when i converted the 32 bit file to 16bit i got some pops for some reason..i used dbpoweramp version 11. i know its that for sure cause the original file is pop free. and in my adobe it seems to be no setting to change it permanatley so everytime i go to save a mixdown file now i go and change the frequency..it renders it and walla..comes out 16 bit pop free...weird issue but just a warning for people if they do that..

 (oh,whats a sticky at the top of this thread? a sticky?)
 
 oh kirk..that file i sent you has the pops in it..this is before i realized how to change that. there are three of them but 2 that are more noticeable...u can find them :)
« Last Edit: November 23, 2009, 03:33:24 PM by bobcat »

 

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