Shortcut to your own realdrums.

Read through the realdrums stylemaking tutorial:

Look for the templates and download them.

Stylemaking templates for RealDrums developers

Now here's the shortcut:

In each template.txt file you'll see comments at the end that explain in simple terms what the .wav file should look like.

For example, if one looks at: 64_bars_of_drumming_with_shots_two_endings.txt
At the end you'll see

;The wave file that accompanies this text file should follow this scheme:
; bar# 1-2 - count-in for two bars (ie, "one, two, one-two-three-four")
; Bars 3-36 will use the same basic groove:
; 3 - PostFill (usually a bar of playing with a cymbal shot at the downbeat, or some kind of bar that would sound good after a fill)
; 4-9 - normal playing
; 10 - Fill
; 11 - PostFill
; 12-17 - normal playing
; 18 - Fill
; 19 - PostFill
; 20-25 - normal playing
; 26 - Fill
; 27 - PostFill
; 28-33 - normal playing
; 34 - Fill
; 35-36 - 2 bar ending
; Bars 37-70 will use a slightly different groove ('B' section) than 3-18
; 37 - PostFill
; 38-43 - normal playing
; 44 - Fill
; 45 - PostFill
; 46-51 - normal playing
; 52 - Fill
; 53 - PostFill
; 54-59 - normal playing
; 60 - Fill
; 61 - PostFill
; 62-67 - normal playing
; 68 - Fill
; 69-70 - 2 bar ending
; 71 - single drum hit, which will be used for "shots" in Band-in-a-Box
; 72 - single drum hit, which will be used for "pushes" in Band-in-a-Box

In even simpler terms this could be:
Count in bars: 1 2
Drum Beat 8 bars with crash at beginning, and fill at end “A” variation: 2 3 4 5 6 7 8 9
Repeat this 3 more times: 10 - 34
Ending bars “A”: 35 36
Drum Beat 8 bars with crash at beginning, and fill at end “B”: 37 38 39 40 41 42 43 44
Repeat this 3 more times: 45 – 68
Ending bars “B”: 69 70
A Shot, for starters just us a single beat on 1: 71
A Push, for starters just us a single beat on 1: 72

Now given a DAW with a matrix type clip editor, like Ableton Live, Sonar, or many others, you'll notice many drums clips are 4 or 8 bars in length. They usually include a crash at the start, and a little fill at the end. They may be audio clips or midi clips.

In the DAW you can find drum clips and drag them in the above template order. Then export this as a .wav file.

For example, here's a drum track that matches the above template I put together from stomps and claps.

After making a wave of a drum track you can add to realdrums.
Go back to the realdrum tutorial and see how to get BIAB to recognize this.

For example:
Make a directory in bb\drums folder, for example something like: bb\drums\MyStyle
copy in the template named “64_bars_of_drumming_with_shots_two_endings.txt” but rename it to something like:
Copy in the .wav file you made, then edit the MyStyle_120_style.txt and change the first line:

Back in BIAB, in the realdrum picker dialog your need to hit the “Rebuild” button. And this case my styles shows up as a realdrum “MyStyle”. To which I can add as a realdrum track.

An example BIAB song made from the stompsclaps_120_style.wav – using Children's melody maker:

It's all fun!

This at least gets you going. More than likely you will need to go back and edit the _style.txt file to better match your .wav file. The templates can only hint at what is appropriate for your drum wave file, you'll really have to go back and adjust things to better select parts, not cut off fills, hit the crashes right, etc. You don't have to make it perfect when soloed, it will be fine with other instruments.

As far as making realdrum styles for multiple tempos, the DAWs will usually allow the tempo to be changed even from audio clips. Within reason. You need to save out several different tempo wav files for BAIB to pick from. Again see the realdrum tutorial.

One hint: Don't add reverb to the raw .wav file. Add it in to Band-in-a-Box on the mixer reverb setting.