[RWP] changing tempo in reaper.

[Roy Shtupler]

yes , george martin and his sun tried that on their "love" project in which 
they did mashups of several elements from several beatles songs together.
cheers
Roy.
----- Original Message ----- 
From: "Derek Lane" <derek at pdaudio.net>
To: "Reapers Without Peepers" <rwp at reaaccess.com>
Sent: Sunday, May 23, 2010 1:45 AM
Subject: Re: [RWP] changing tempo in reaper.


>I thought that at first, but that makes a measure from the selection, but 
>doesn't set the initial project tempo.  I had to read his directions 
>carefully to get the subtle differences.  Now, heres something that would 
>be cool.
> Lets say someone loaded any given motown track in to reaper and marked off 
> every measure by selecting the content and pressing alt shift c, wouldn't 
> it be a wild thing if somehow you could set the project tempo, then use 
> those marks for reaper to figure out how much various parts of the audio 
> would be stretched or compressed to make those musicians from the past 
> play to any click you then chose?
> ----- Original Message ----- 
> From: "Roy Shtupler" <shtupler at 013.net>
> To: "Reapers Without Peepers" <rwp at reaaccess.com>
> Sent: Saturday, May 22, 2010 6:38 PM
> Subject: Re: [RWP] changing tempo in reaper.
>
>
>>I think the keystroke for the detection is Alt+Shift+C.
>> cheers
>> Roy.
>> www.soundclick.com/tzackeek
>> ----- Original Message ----- 
>> From: "Scott Chesworth" <scottchesworth at gmail.com>
>> To: "Reapers Without Peepers" <rwp at reaaccess.com>
>> Sent: Saturday, May 22, 2010 8:00 PM
>> Subject: Re: [RWP] changing tempo in reaper.
>>
>>
>>> Hi Derek,
>>>
>>> Only started exploring this myself last night, so forgive the
>>> inevitable rambling.
>>>
>>> For simplicity, let's assume you have a project with a single track of
>>> audio, you know it was recorded to a click, but you want to identify
>>> the original bpm then be able to adjust that at will.
>>>
>>> First, we need to ensure that the timebase for this track is set to
>>> time, rather than beats or position or anything else, otherwise when
>>> Reaper adjusts the project tempo it's also going to start tinkering
>>> with the playrate of the audio before we want it to. Set the timebase
>>> for the track in the track menu, or do it for the whole project in
>>> project settings if you prefer.
>>> Next, we need to mark out a bar (or measure on your side of the pond)
>>> for Reaper to be able to figure out the bpm. Place the time selection
>>> neatly around a measures worth of audio with Alt+Shift+[ and
>>> Alt+Shift+]. You can check the selection is neat by looping the
>>> selection, or my new favourite way is to jump to slightly before the
>>> start of the time selection and then use Alt+Space to play missing out
>>> that chunk you've selected. Whichever method you choose, if everything
>>> sounds neat and in time you should be good to go.
>>> Now, we need the actions list because by default this action isn't
>>> bound to a keystroke. Hit F4 to show the actions list, and type tempo
>>> into the filter box you land in. Tab round to the multi-select list
>>> box of choices, and choose "Set project time signiture / tempo from
>>> time selection...". Tab round to "Run/close", and you should be taken
>>> directly to the project settings box. Shift tab once will read you the
>>> new tempo Reaper has decided upon, and it's unlikely to be right on
>>> the money but it will be close if you're selection was accurate.
>>> Accept it, because annoyingly the box is read only at this stage. Now
>>> when you play the project, the click should be roughly right although
>>> it'll probably drift over time. Head back into Project Settings with
>>> Alt+Enter and adjust that tempo to the nearest whole number, and that
>>> should cure the drifting, think Reaper is a bit oversensitive.
>>> The last step is to make sure that your track or project timebase
>>> (whichever you modified earlier) are set back to "Beats (position,
>>> length, rate) so that the audio will sync. Now, if you try adjusting
>>> the project tempo in project settings, the track should sync to each
>>> change perfectly.
>>>
>>> FWIW, I've only tried this so far on quite standard tempo 4/4 stuff as
>>> time is of the escence here at the mo, but I'd assume it can work with
>>> other time sigs too because the boxes to specify those aren't read
>>> only at any stage, my guess is that the read only tempo box would
>>> recalculate if you typed in 6/8 or whatever.
>>>
>>> Hth
>>> Scott
>>>
>>> On 5/22/10, Derek Lane <derek at pdaudio.net> wrote:
>>>> I'm missing how to get audio to sync to tempo.  The autodetect features 
>>>> seem
>>>> to not be working, and checking the box to do this in the project 
>>>> properties
>>>> is doing nothing.  Can someone tell me what I'm missing or provide a 
>>>> step by
>>>> step reference as to how this is to be done?
>>>
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>>
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