# drum roll in traktor **URL:** \ **Category:** General Discussion\ **Created:** [June 24, 2009, 7:35pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582 "2009-06-24T19:35:01Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![OllieThomas](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/olliethomas/32/11769_2.png) [@OllieThomas](https://forum.djtechtools.com/u/OllieThomas)\ **Post date:** [June 24, 2009, 7:35pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/1 "2009-06-24T19:35:01Z")
**drum roll in traktor** Have followed Eans video. When i shorten the loop, it doesnt shorten by bar, but when held down shortens down in a fluid motion, i.e. gradually decreasing. what have i done wrong? cheers ollie p.s. would really appreciate if someone could take the time to answer this, this has bugged me for months, and the noob i still am, would be grateful x ---
**Author:** ![basspenetrator](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/basspenetrator/32/11426_2.png) [@basspenetrator](https://forum.djtechtools.com/u/basspenetrator)\ **Post date:** [June 24, 2009, 7:46pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/2 "2009-06-24T19:46:33Z")
i’m guessing you’re on traktor.. try pressing the snap button ---
**Author:** ![mpetersen3](https://avatars.discourse-cdn.com/v4/letter/m/a88e57/32.png) [@mpetersen3](https://forum.djtechtools.com/u/mpetersen3)\ **Post date:** [June 24, 2009, 8:51pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/3 "2009-06-24T20:51:05Z")
I would guess midi mapping, likely the shorten loop function is set to direct, and maybe you are using a linear fader or rotary? ---
**Author:** ![OllieThomas](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/olliethomas/32/11769_2.png) [@OllieThomas](https://forum.djtechtools.com/u/OllieThomas)\ **Post date:** [June 24, 2009, 10:54pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/4 "2009-06-24T22:54:43Z")
nothing to do with snap button. mpetersen3, definitely something to do with mapping. do you know how it works? alternatively, could somebody update the traktor 3 tks WITH drum roll for both decks A and B? would be a great help, in order to get those 1/32 buildups. ---
**Author:** ![OllieThomas](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/olliethomas/32/11769_2.png) [@OllieThomas](https://forum.djtechtools.com/u/OllieThomas)\ **Post date:** [June 25, 2009, 10:21am UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/5 "2009-06-25T10:21:30Z")
bump… ---
**Author:** ![DvlsAdvct](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/dvlsadvct/32/15020_2.png) [@DvlsAdvct](https://forum.djtechtools.com/u/DvlsAdvct)\ **Post date:** [June 25, 2009, 1:30pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/6 "2009-06-25T13:30:16Z")
There should be a function in the MIDI map called Loop Size, set one button to previous and one to next ---
**Author:** ![miyuru](https://avatars.discourse-cdn.com/v4/letter/m/48db29/32.png) [@miyuru](https://forum.djtechtools.com/u/miyuru)\ **Post date:** [June 25, 2009, 9:11pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/7 "2009-06-25T21:11:46Z")
You probably have the button mapped to Loop Start, FINE. You want it to be set to LP/2, which would cut the loop length in half each time you press it. ---
**Author:** ![OllieThomas](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/olliethomas/32/11769_2.png) [@OllieThomas](https://forum.djtechtools.com/u/OllieThomas)\ **Post date:** [June 25, 2009, 11:01pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/8 "2009-06-25T23:01:32Z")
miyuru, done that for both deck a and b now. b shortens, but only to a single 1 loop. a doesnt shorten at all now .arggggggggggh ---
**Author:** ![BentoSan](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/bentosan/32/15028_2.png) [@BentoSan](https://forum.djtechtools.com/u/BentoSan)\ **Post date:** [June 26, 2009, 2:12am UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/9 "2009-06-26T02:12:49Z")
> [@OllieThomas](#): > > miyuru, done that for both deck a and b now. b shortens, but only to a single 1 loop. > > a doesnt shorten at all now .arggggggggggh Sounds like when your shortening it its only shotening by one beat length - which means your not correctly triggering the /2 loop function ---
**Author:** ![DvlsAdvct](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/dvlsadvct/32/15020_2.png) [@DvlsAdvct](https://forum.djtechtools.com/u/DvlsAdvct)\ **Post date:** [June 26, 2009, 3:56am UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/10 "2009-06-26T03:56:40Z")
In your MIDI setup Add → Deck → Loop → Loop Length set one command to next, and one command to previous. ---
**Author:** ![nicolas](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/nicolas/32/15143_2.png) [@nicolas](https://forum.djtechtools.com/u/nicolas)\ **Post date:** [June 27, 2009, 4:58pm UTC](https://forum.djtechtools.com/t/drum-roll-in-traktor/4582/11 "2009-06-27T16:58:03Z")
Don´t forget to check the “Auto Repeat” box when mapping, this way you can make your loop as small as you want without having to press te same boton several times.