• SONAR
  • How do I match BPM to a WAV file in Sonar so that I can create the drum tracks separately
2014/12/12 13:03:32
magik570
We decided to record some tracks to play on stage along with live vocals and guitars. They are cover songs (different language).. in order for me to do the beats properly, I decided to put the real song wav file in a track for reference.
My question is, how do I match the song with Sonar's metronome? I looked at the song in 'Loop Construction' view and it gave me avg of 115. But actual song differs time to time (not intentionally)..
So I changed the song's tempo (after settting the project at 115) to 115 (Audiosnap--> Clip follows project). Then I took advantage of 'Fit to Time' option to stretch audio.
But, my metronome still is not syncing.
Anything I could have differently? Is there a better way?
 
Thanks in Advance..
2014/12/12 13:28:41
stickman393
I dump the complete song as a wav into an audio track; then enable the metronome so I can hear the clicks. Then I adjust the BPM until the first 10 bars or so are in synch. Then I move the NOW time progressively further along, listening to the synch of the music to the click. Finally, I get to the end of the audio clip, and chances are I have a BPM of 115.75 or something like that. And it's "good enough".
 
This only works if you know that the audio wav uses a static BPM value. If it varies over time, then you have to use more complicated techniques to generate a tempo map.
2014/12/12 13:47:04
robert_e_bone
Audiosnap has some kind of way to build a tempo map of a given track, and will insert tempo changes into the track to match any tempo changes in the actual song data.
 
I don't have time at the moment to look up that section of documentation for you, but if you haven't found it in a couple of hours, I will be back and can find that for you.
 
I have used this technique for finding all the tempos in a free-flowing guitar track by Steve Morse, from the Dixie Dregs, and it worked perfectly to match the project tempos to what had been recorded.
 
Bob Bone
2014/12/12 14:00:52
magik570
Bob, 
I found this:
http://www.cakewalk.com/Documentation?product=SONAR%20X2&language=3&help=AudioSnap.06.html
Will review soon..
If you were referring to any other documentation, please list at your convenience. 
 
Thanks again...
 
2014/12/12 16:21:41
robert_e_bone
Yup.  That's what I used.
 
Bob Bone
 
 
2014/12/12 17:14:44
mettelus
The method I have used for this is to first set the project tempo as close as possible, then shift the clip right to align an initial beat. Using shift-m you can set that initial beat and work through the clip every few bars or so (depending how much drift you have), and use shift-m to align further (turn off snap-to-grid so you can precisely mark beats). Each time you use shift-m you will modify the project's tempo map.

Oh, and after aligning that initial beat, right click the clip and "bounce to clip(s)."
2014/12/12 17:29:50
Kev999
mettelus
The method I have used for this is to first set the project tempo as close as possible, then shift the clip right to align an initial beat. Using shift-m you can set that initial beat and work through the clip every few bars or so (depending how much drift you have), and use shift-m to align further (turn off snap-to-grid so you can precisely mark beats). Each time you use shift-m you will modify the project's tempo map.

Oh, and after aligning that initial beat, right click the clip and "bounce to clip(s)."

 
That's exactly the method I use, except for the "Bounce to Clip(s)" part. What is the purpose of bouncing?
2014/12/12 19:09:26
robert_e_bone
Audio Snap will insert tempo changes for all tempo changes detected in the song, which may vary at points throughout the song.
 
You can then view the tempo map to see where all of those changes are.
 
Bob Bone
 
2014/12/12 19:33:01
TomHelvey
If the reference song doesn't change tempo you can do it by adjusting the tempo until the kick and snare hits line up with the markers. If the song is all over the map, try this: http://forum.cakewalk.com...udioSnap-m3056749.aspx
2014/12/12 22:12:04
mettelus
Kev999
That's exactly the method I use, except for the "Bounce to Clip(s)" part. What is the purpose of bouncing?



I think this is specific to using AudioSnap, and cannot offhand remember the exact answer. FastBikerBoy responded to that in another thread and it seems to make the pool cleaner. For using Shift-M, IIRC, placing a tempo insert on that first beat is all that is needed. If aligning the first beat to a bar (without the tempo insert) and inserting a tempo change 4 bars down, it can nudge the placement of that initial beat otherwise.
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