How to quantize multitrack audio with audiosnap

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JazzSinger
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2012/04/28 15:06:30 (permalink)

How to quantize multitrack audio with audiosnap

Found lots of old posts with the same problem. No real answers in any of them.
 
I went through many videos. Mostly they read what is written on the button without explaining further. No video tackles simple quantization.
 
The manual does have a section "Why would I use it" with 7 applications, but not the most obvious, how to quantize tracks. I thought "To sync an audio clip to the project tempo would be it (3 easy steps) but it just jumbles everything into a complete mess.
 
I have 38 tracks. The drummer was excellent, but over time, naturally, he drifts off the grid. But it is just a drift. He was superbly accurate.
 
I want to quantize the drum track to the average tempo, and all other tracks also.
 
One Sonar University video says you have to take out all transients on the bass drum that are not on the beat, so I did that and only left the whole note beats.
 
Hit Quantize, set to whole notes, and audiosnap does not even do THAT right! Transients did change positions, but not on the grid.
 
Does anyone know of tutorials or videos to achieve this most obvious of audiosnap tasks? 
 
#1

18 Replies Related Threads

    JazzSinger
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    Re:How to quantize multitrack audio with audiosnap 2012/04/28 15:09:38 (permalink)
    I found a video where at one point the guy says: "Those pool markers can be used to apply tempo to another track which is known as groove matching"

    I thought, GREAT! This could be it - and then he turns the page, without explaining further. AAAARGH!
    #2
    MarkH
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    Re:How to quantize multitrack audio with audiosnap 2012/04/28 15:25:28 (permalink)
    You have probably already found this on your travels, but this SOS article really helped get my head around the audiosnap pool.

    http://www.soundonsound.com/sos/nov11/articles/sonar-workshop-1111.htm
    #3
    tunekicker
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    Re:How to quantize multitrack audio with audiosnap 2012/04/28 15:42:02 (permalink)
    Great find Mark. Thanks for posting.

    Peace,

    Tunes
    #4
    JazzSinger
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 06:45:57 (permalink)
    thanks from me, too.

    I cannot find an authors name. I wonder how they managed to figure all that out.
    #5
    jimmyrage
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 08:55:56 (permalink)
    I've had decent results by using it only on problem parts, like single measures and such.
    #6
    LJB
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 09:11:28 (permalink)
    I use another DAW for sorting out timing issues - that one has very "elastic audio warping" facilities. Till X1 gets as good as that, I wiill keep using the other DAW for audio quantizing.

    Ludwig Bouwer, One Big Room Studios.
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    Check out my work at www.onebigroom.co.za

    #7
    timidi
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 09:40:13 (permalink)
    LJB


    I use another DAW for sorting out timing issues - that one has very "elastic audio warping" facilities. Till X1 gets as good as that, I wiill keep using the other DAW for audio quantizing.

    What is the other DAW LJB? Thanks.

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    #8
    M_Glenn_M
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 10:20:56 (permalink)
    A very good find Mark. I have struggled with AudioSnap features but this seems very clear.
    It covers a lot of the common errors that I made with this great, but confusing, tool.

    FastBikerBoy did a good job on an A/S video too.


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    #9
    FastBikerBoy
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 10:38:04 (permalink)
    I'm no expert on audio snap but in my experience the key to getting results (for me) is to make sure the clip map is lined correctly to start with. If that isn't set up correctly I can't get it to work properly either. Setting that up can be a bit convoluted as well especially if the first transients aren't the first beat. You then need to start inserting transients at the start of the clip or there's all sorts of problems with it.

    Have a look at the video M_Glenn_M mentioned above and see if that helps. I could always put up another one if it's something I do. I mainly use it to sort out the bass with the drums as well as the tempo extraction shown in the video.

    I haven't used the quantise to the set M:B:T much because I prefer the natural drift through a song but it's certainly something I can have a go at as I understand the theory of doing it. If I have any success I'll put a video up and you can see if that helps. I may well be back to rant though.
    #10
    JazzSinger
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 11:40:18 (permalink)
    Much appreciated, thanks. It's put some concepts into a mental framework for me.
     
    Just a question: doesn't three dots in the tempo selection mean a waltz?
     
    #11
    FastBikerBoy
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 12:02:23 (permalink)
    TBH I haven't a clue, I just assumed that the star markings were an indication of how likely that tempo was to be the correct one. I haven't seen a mention of them in documentation anywhere but if it was waltz time it would be 3/4 and hence set by the beats per measure figure.

    I don't know for fact though, as I said I'm no expert I do what I do and most of it I've figured out by reading the docs and trial and error. I have discovered that the clip map is a big part of getting it to work. While editing the clip map you can also use "Merge & Lock Markers" from 2 or more tracks if those tracks contain other beats. For example a kick track might have beats 1 & 3, while the snare has 2 & 4.
    #12
    gray36
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 18:53:37 (permalink)
    In the CAKE TV Part 1 Webinar, Seth shows in detail how to groove match with Audiosnap, if that helps any, it was right before X1d came out. Might be worth checking out. Good luck!

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    #13
    digi2ns
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 22:17:13 (permalink)
    I read through the Ref Guide and it is very specific on making sure you do certain things in certain orders or it wont work.  Under or in each section it also gives a brief explaination of when each type of snap, pool, etc... is used.  This particular circumstance you are asking was outlined in there.
    Id recommend reading all of the features on it first and when they are used before jumping right into trying to line everything up the first time. 
    Have you saved an extra copy of the project before you attempt changes? Nice to have one to fall back on until yyou figure it out


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    #14
    digi2ns
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    Re:How to quantize multitrack audio with audiosnap 2012/04/29 22:36:53 (permalink)
    One thing I did notice in the article above (which is very good) they didnt discuss splitting the beats into seperate clips. I believe this really helps with the algorythms and keep the sound good on drum tracks.

    I think it all starts about page 583
    Heres a copy of a page I was talking about with suggested uses.

    Synchronizing audio and the project tempo
    There are many reasons why you may want to synchronize audio clips with the project tempo. The
    following list presents a few common examples.
    AudioSnap provides two ways to quickly synchronize audio and the project tempo map:
    Applying an audio clip’s internal tempo map to the project’s global tempo map. Use this
    method if you want the project tempo to match an audio clip’s tempo and have audio beats
    aligned with the project’s time ruler.
    This is useful in the following scenarios:
    • If you recorded an audio track without using the metronome, and you want the project’s
    measure and beat boundaries to align with the audio. For example, you may have recorded an
    audio track that you would like to use as the tempo reference when recording additional tracks.
    • If you want both audio and MIDI edits to snap to audio beats.
    • If you want to use the Quantize and Groove Quantize commands on audio clips, and have
    audio beats quantized correctly.
    • If you want to remix an existing song that has been imported into SONAR (from an audio CD or
    MP3 file, etc.). In order to add new drum loops and MIDI instruments that play in time with the
    original song, you need to create a tempo map from the original song.
    For details, see “To sync the project tempo to an audio clip” on page 587.
    Applying the project’s tempo to a clip’s tempo map. Use this method if you want a clip to
    follow the project tempo.
    This is useful in the following scenarios:
    • If you want to synchronize new audio with existing audio.
    • If you want to tighten up a new audio track so it fits well with the timing and tempo of an
    existing track.
    • If you want to globally change the project’s tempo after audio has been recorded.
    For details, see “To sync an audio clip to the project tempo” on page 587 and “To copy the project
    tempo to an audio clip’s tempo map” on page 588.


    MIKE

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    #15
    JazzSinger
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    Re:How to quantize multitrack audio with audiosnap 2012/04/30 05:46:52 (permalink)
    This is good stuff. Thanks, will look into it next weekend.
    #16
    LJB
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    Re:How to quantize multitrack audio with audiosnap 2012/04/30 06:10:33 (permalink)
    timidi


    LJB


    I use another DAW for sorting out timing issues - that one has very "elastic audio warping" facilities. Till X1 gets as good as that, I wiill keep using the other DAW for audio quantizing.

    What is the other DAW LJB? Thanks.


    Timidi, Let's just say if you google the words in quotation marks you'll find it amongst some of the top DAWs. Sone even claim it's the industry standard for anyone who wants professional tools :O) I just like the elasticity of its audio warping.

    Ludwig Bouwer, One Big Room Studios.
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    Check out my work at www.onebigroom.co.za

    #17
    JazzSinger
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    Re:How to quantize multitrack audio with audiosnap 2012/04/30 06:35:46 (permalink)
    LJB, from your experience, how much different is this from Sonar's own Ctrl+Drag the end of a clip?

    I am getting to the point where I want to get a second DAW.

    I only do demos and it's only a secondary income, but I still need to be able to deliver to deadlines occasionally.
    #18
    tfbattag
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    Re:How to quantize multitrack audio with audiosnap 2013/04/16 23:53:48 (permalink)
    meant to post this in a different thread.....

    Thomas Battaglia
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