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Subject:Recording and creating loops for sale on the "net".
Posted by: mmccarrell
Date:7/15/2004 6:26:51 AM

I'm trying to create custom loops, such as guitar and drums, to make and sell on the internet. Can someone tell me the process to make them, and create them where they will work with the other loops people buy, such as drum loops, I have pro-tools that I have been using to make the loops, then load them in acid. Most loops are defaulted at 120.000 BPM's, so I want to make sure mine will line up with other disc's that people own, so mine will match up,,,Thanks all!

Subject:RE: Recording and creating loops for sale on the "net".
Reply by: JohnnyRoy
Date:7/15/2004 7:21:19 AM

I would pick up a copy of Sound Forge and use its ACID Properties tagging to make the properties correct. Sound Forge will let you tag the wave file as a One-Shot, Loop with root note for transposing and number of beats, or as an ACID 2, or ACID 3 (beatmapped) wave. This is especially important for your drum loops since you don’t want them to transpose when key changes are made. Then when you drop the tagged loop on ACID it should reflect its true BPM, key, etc. that you used in ProTools when you created it. I record my loops right in ACID so I don’t have to worry about this extra step.

I believe there are some free tools on the net that will manipulate ACID properties too. I just don’t remember their names because I use Sound Forge for this. Even the cheapest Screenblast Sound Forge version ($69) has this ACID property editing capability.

~jr

Subject:RE: Recording and creating loops for sale on the "net".
Reply by: Snappy
Date:8/1/2004 2:21:46 PM

The most important point I would add is: make sure your loops are TIGHT!

Tight edit at the start, and tight quantization on all the major hits.

This is the single-biggest factor in seeking 'compatibility' with other loops, IMO.

Of course, some drum beats will lose their 'life' if all the feeling is quantized out of them, so use your judgement.

Subject:RE: Recording and creating loops for sale on the "net".
Reply by: Iacobus
Date:8/2/2004 11:56:32 AM

Adding to what others have said, know that time and tempo are related.

For example, a standard 4/4 measure of audio at 120.000 BPM is exactly 2 seconds long. The same measure of audio at 100.000 BPM is exactly 2.4 seconds long. This may be important if you want to glean a measure of audio from a take, or just want to construct a loop from scratch.

There's an easy formula to use to determine exactly how many seconds you need:

240 / (intended tempo) = (number of seconds needed)

If you need a two measure loop, just double the number of seconds needed. (It's all really relative.)

This formula changes depending on different time signatures. For example, if you wanted to create a 3/4 loop rather than the standard 4/4, you'd use the following formula instead:

180 / (intended tempo) = (number of seconds needed)

When you're making ACIDized loops, be sure to utilitize ACID Pro's ability to use stretch markers, which can help a loop stretched to other tempos sound that much better.

Iacobus
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