Superboy Posted July 24, 2018 Share Posted July 24, 2018 I sent this to crumar, but I figured I'd give a try here to. Thanks. Hello, I just received the crumar mojo yesterday. I am setting it up and i have two issues I need help with: I'd like to use the sustain pedal to switch the rotary speed. It doesn't seem to work. I have two kinds of pedals, one with an "unbalanced" connecter, and one with a balanced connector. Neither work. I also have an adapter that switches the polarity for other keyboards, and switching the polarity doesn't work. I also see that you say not to use other pedals, but why not? It's just a normal 1/4 TRS plug with a pedal switch? The second...I was trying to connect direct into my RME soundcard. I noticed the buffer size on the organ setup is 128. I have mine set to 256. Is that a problem? The sounds was very static and garbled plugged directly into the RME inputs. But it's ok playing out of the amp. Thanks. Link to comment Share on other sites More sharing options...
Sven Golly Posted July 24, 2018 Share Posted July 24, 2018 1) Make sure you plug it in before turning the Mojo on. Also, does anything happen when you depress and then release the pedal? Are you sure it's a sustain pedal, not a latching switch pedal? Make? Model? 2) This is not an issue with the Mojo but with your RME and your computer. Crumar isn't going to help you with this, or at least will point out that the issue isn't theirs to solve. Also, you're misusing "balanced" and "unbalanced" to describe the connectors. They are "TRS" and "TS" respectively. The warning is because there's no guarantee that you don't have some sort of pedal that is active and applies a voltage across the connector and potentially damaging the Mojo. Link to comment Share on other sites More sharing options...
Superboy Posted July 25, 2018 Author Share Posted July 25, 2018 thanks sven. Yes I wasn't sure what terminology to use for the plugs. I have a TS old roland sustain pedal. It works for switching the leslie fast/slow, but ONLY if I plug it in AFTER turning the mojo on, and only if I use a custom adapter I have for switching the polarity of the plug, thus, turning it into a TRS actually. I also have the more deluxe triple sustain pedal from Roland. Each plug for it is TRS (3 of them). THis one does not work at all. If I turn it on plugged in, or plug it in later, it does nothing. It also does nothing if I put my polarity adapter on it. That is puzzling to me. I just order the crumar swell with built in switches, so thats coming. But I have a Yamaha FC-7 swell pedal, and that works fine with the mojo. I've only tried it plugged it while turning it on, and it works. Sometimes, in the first few minutes, I did experience some crackling when I used the pedal, but that went away after a while. Link to comment Share on other sites More sharing options...
Dave Bryce Posted July 26, 2018 Share Posted July 26, 2018 The dual Mojo needs a latching footswitch to change rotary speed, not a momentary one. If you plug a momentary (sustain) pedal into the Rotary Speed jack, the speed will only change while you're depressing and holding the pedal....and I don't think there's any way to get it to change the Rotary Speed if you plug it into the Sustain jack. The Mojo61 does let you use a sustain pedal to change rotary speed, and does have a dedicated Sustain pedal jack which handles that function when the 61 is in VB3 mode, and sustains when playing the piano sounds. That may be where some of the confusion lies. dB ==> David Bryce Music • Funky Young Monks <== Affiliations: Cloud Microphones • Music Player Network Link to comment Share on other sites More sharing options...
Sven Golly Posted July 27, 2018 Share Posted July 27, 2018 Whoops, I was assuming, probably incorrectly, that the OP had a Mojo 61. Good call, dB! Link to comment Share on other sites More sharing options...
Superboy Posted July 27, 2018 Author Share Posted July 27, 2018 thanks dave. yes this is the dual mojo. True, the sustain pedal works as you say. It works with my adapter for rotary speed as long as i plug it in after turning it on. not a good solution, but the mojo pedal will arrive in a couple days. ONe thing I dont understand...the mojo pedal has 2 switches and one trs cable. how does it control two switches with one plug? i believe on is for fast/slow, and the other is for brake/run. Link to comment Share on other sites More sharing options...
Dave Bryce Posted July 27, 2018 Share Posted July 27, 2018 ONe thing I dont understand...the mojo pedal has 2 switches and one trs cable. how does it control two switches with one plug? i believe on is for fast/slow, and the other is for brake/run. I'm not an engineer...but as I understand it, the TRS jack is what makes the dual switch possible. I don't think single latching footswitches require TRS jacks... dB ==> David Bryce Music • Funky Young Monks <== Affiliations: Cloud Microphones • Music Player Network Link to comment Share on other sites More sharing options...
wd8dky Posted July 27, 2018 Share Posted July 27, 2018 You are correct DB. The latching mechanism is mechanical and doesn't require a TRS plug. Link to comment Share on other sites More sharing options...
ZioGuido Posted July 28, 2018 Share Posted July 28, 2018 The FS/HM jack on the back of the MOJO accepts either the dual foot switch or the half moon and reconfigures itself automatically every time the Mojo is turned on and the accessory is already plugged in. You can't (shouldn't) connect a normal sustain pedal to that port as it won't function as expected. The sustain pedal goes to the 'Sustain' jack input and will only work as a sustain for the piano sounds. I too have an RME (FF800) and 256 of buffersize is good if you plan to do multitrack recording or mixing, you could opt for a lower buffersize if your computer is powerful enough and if you plan to use it for realtime virtual instruments. Anyway, this has no correlation with your Mojo. Link to comment Share on other sites More sharing options...
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