Tempo

[joecc]

Hi there,
I'm using Reason and Adobe Audition, when I cut a loop (its speed is 100BPM) how do I match this w my track (at 120BPM) with changing pitch....??

thanks,
joe

[BJG145]

Is this a drum loop...? (If so, the usual way is to use some beat slicing tool, like ReCycle...)

[joecc]

It's a drum loop with a riff (i hope to eq out the main beats)....
So its speed is at 100bpm, my project is at 120...how will i speed up sample, whilst keep the pitch?

thanks,
joe

[narcoman]

You'll not have much joy eqing out beats - but just cut the sample up on each beat. Easy peasy to move it around to {nearly} any tempo. What DAW are you using?

[joecc]

So what you are saying is if it's a bar loop, cut it into 4 individual beats? (assuming 4 beats in the bar)....

I'm using Reason....thanks...

[narcoman]

So what you are saying is if it's a bar loop, cut it into 4 individual beats? (assuming 4 beats in the bar)....

I'm using Reason....thanks...

No. Cut on every transient hit of the drum kit. For a small shift like you're looking at it'll work - unless the rhythm is really unusual. So this includes hit hat hits, snare hits, kick etc etc. It'll be something like 8 or so parts per bar - depending on what's happening.

[joecc]

The 'bit' that I want is an instrumental passage, about two-bars long, with beats underneath.....All I really want is the instrumental passage, minus the beats....can't be eq'd out though??

thanks

[A Non O Miss]

Why not just take the 100bpm into Audition Edit mode and use the time stretch effect, preserve pitch and a ratio of 120. That should do it.

[The Elf]

If the ‘beat’ in your loop is a kick drum (the only part that can really be considered as being 'underneath') then you might get away with a high-pass filter to take out much of its bottom end, but you’ll also affect any other low instruments, typically bass. This works best when you’re going to add another kick or bass over the loop. A narrow notch filter might do a decent job if you’re careful to hone in carefully on the kick’s fundamental frequency.

If there’s much more to the ‘beat’ (e.g. snare, hats, percussion, etc.), then it’s going to be tough trying to reduce them all without significantly impacting the rest of the audio, but some exacting work with more notch filtering might get you something that will work behind other audio parts.