vihreamies Posted October 16, 2010 Share Posted October 16, 2010 I have Yamaha sustain pedal, and it's so called "closed at the rest" pedal, where the tip and sleeve are connected when not pressed. For example Fatar VFP1 is the same. Well, I have Doepfer MKE, and that can be made with slight adjustments to circuit to work with such pedals as above mentioned, but what are the pedals that don't work like that, and can someone explain how they works? They can't be just opposite right? I hope there are some freaks out there best, -Vm Link to comment Share on other sites More sharing options...
mate stubb Posted October 16, 2010 Share Posted October 16, 2010 They can't be just opposite right? Yes, they can. The other type is the so called continuous sustain pedal which is a pot instead of a switch. Moe --- Link to comment Share on other sites More sharing options...
vihreamies Posted October 16, 2010 Author Share Posted October 16, 2010 Oh yes they can after all. Thanks Moe. -Vm Link to comment Share on other sites More sharing options...
MoodyBluesKeys Posted October 16, 2010 Share Posted October 16, 2010 The Yamaha sustain pedals use "normally closed" switches. Kurzweil and Casio use "normally open" switches. For some reason, although it is not technically correct, the general name for the difference has come to be called "polarity." Some of the accessory sustain type pedals on the market have an additional slide switch (usually mounted on side or bottom) that can change the pedal (which uses a three connection switch that can be connected either way). Normally closed - makes a completed circult until depressed. Normally open - only makes a completed circuit when it is depressed. So, they are "opposite" in that sense. Kurzweils generally sense the pedal on bootup and auto-configure. Nord Electro 3 can be set for either type. The other type of pedal that Moe is referring to that uses a potentiometer is technically called a "Continuous Control" pedal. It is typically used for Volume or Expression control, or "wah" type effects. Those pedals usually have three connections instead of two, the connection arrangement varies by manufacturer and type, the resistive value of the pot varies, and the "taper" of the pot may be either linear or logarithmic. Howard Grand|Hamm SK1-73|Kurz PC2|PC2X|PC3|PC3X|PC361; QSC K10's HP DAW|Epi Les Paul & LP 5-str bass|iPad mini2 "Now faith is the substance of things hoped for, the evidence of things not seen." Jim Link to comment Share on other sites More sharing options...
mate stubb Posted October 16, 2010 Share Posted October 16, 2010 Actually I was referring to the new class of pianos that can do partial pedalling based on in between values of the sustain CC - so they have a pot, but are sustain type pedals instead of volume type pedals. Moe --- Link to comment Share on other sites More sharing options...
Sven Golly Posted October 16, 2010 Share Posted October 16, 2010 I hope there are some freaks out there Am I alone in finding it unsettling that knowledge of how sustain pedals function is classified as "tech freak" knowledge? Link to comment Share on other sites More sharing options...
allan_evett Posted October 17, 2010 Share Posted October 17, 2010 I hope there are some freaks out there Am I alone in finding it unsettling that knowledge of how sustain pedals function is classified as "tech freak" knowledge? You are not alone.... I was wondering about that too. 'Someday, we'll look back on these days and laugh; likely a maniacal laugh from our padded cells, but a laugh nonetheless' - Mr. Boffo. We need a barfing cat emoticon! Link to comment Share on other sites More sharing options...
EscapeRocks Posted October 17, 2010 Share Posted October 17, 2010 Maybe the sustain pedal users only come out at night in Norway [video:youtube] David Gig Rig:Casio Privia PX-5S | Yamaha MODX+ 6 | MacBook Pro 14" M1| Mainstage Link to comment Share on other sites More sharing options...
vihreamies Posted October 17, 2010 Author Share Posted October 17, 2010 I hope there are some freaks out there Am I alone in finding it unsettling that knowledge of how sustain pedals function is classified as "tech freak" knowledge? Well, this is my kind of humor, what can I say. I consider myself as DIY man, and bit as a freak too. I was not experienced in sustain pedals and wanted to ask here, since I know there's people who can help me. best, -Vm Link to comment Share on other sites More sharing options...
JeffLearman Posted October 17, 2010 Share Posted October 17, 2010 Nord Electro 3 can be set for either type. True, but when you configure the NE2 in the non-default (normally open) mode, the software switch debouncing doesn't work well for the leslie speed control. At least, that's what mine does. Pressing the pedal is often seen as hitting it twice, leaving the rotor at the same speed. As you might imagine, it's not consistent: sometimes it seems to work fine. It's possible they fixed this on NE3. Link to comment Share on other sites More sharing options...
MoodyBluesKeys Posted October 17, 2010 Share Posted October 17, 2010 I have a bunch of KurZweil (normally open) pedals, and use with my NE3 - have not had any problem with getting two hits when depressing the pedal, so my assumption is that the NE3 does fix that issue. Howard Grand|Hamm SK1-73|Kurz PC2|PC2X|PC3|PC3X|PC361; QSC K10's HP DAW|Epi Les Paul & LP 5-str bass|iPad mini2 "Now faith is the substance of things hoped for, the evidence of things not seen." Jim Link to comment Share on other sites More sharing options...
AnotherScott Posted October 17, 2010 Share Posted October 17, 2010 The Yamaha sustain pedals use "normally closed" switches. Kurzweil and Casio use "normally open" switches. For some reason, although it is not technically correct, the general name for the difference has come to be called "polarity." I think that, if you have the "wrong" kind, you can re-wire it and get it to work by switching the two wires that go to the 1/4" connector... what in another context you would call switching the positive and the ground, or, switching polarity. Maybe this is the best place for a shameless plug! Our now not-so-new new video at https://youtu.be/3ZRC3b4p4EI is a 40 minute adaptation of T. S. Eliot's "Prufrock" - check it out! And hopefully I'll have something new here this year. ;-) Link to comment Share on other sites More sharing options...
AnotherScott Posted October 17, 2010 Share Posted October 17, 2010 Actually I was referring to the new class of pianos that can do partial pedalling based on in between values of the sustain CC - so they have a pot, but are sustain type pedals instead of volume type pedals. While they are using the shape of a sustain pedal, I believe they are still, internally, the same kind of CC pedal that MoodyBluesKeys described, so you're actually talking about the same thing. Except the sustain-pedal shaped ones spring back. Maybe this is the best place for a shameless plug! Our now not-so-new new video at https://youtu.be/3ZRC3b4p4EI is a 40 minute adaptation of T. S. Eliot's "Prufrock" - check it out! And hopefully I'll have something new here this year. ;-) Link to comment Share on other sites More sharing options...
JeffLearman Posted October 17, 2010 Share Posted October 17, 2010 I think that, if you have the "wrong" kind, you can re-wire it and get it to work by switching the two wires that go to the 1/4" connector... what in another context you would call switching the positive and the ground, or, switching polarity. Some you can, some you can't. It depends on whether the switch inside has both NO and NC taps. Link to comment Share on other sites More sharing options...
Throbert Posted October 18, 2010 Share Posted October 18, 2010 Yes Fatar makes CC sustain pedals in various single and multi configurations. GEM used their pedals for the PRO series stage pianos over 15 years ago. When you depress the pedal it engages a simple linkage that is attached to the wiper of a potentiometer (I forget what the resistance is) and the leads of that potentiometer are terminated at a 1/4 TRS connection. I have mine plugged into my midi time piece so I can dial it in and send it where ever. Works for the RPX module since GEM only put the contact jack on it for some reason. Triton Extreme 76, Kawai ES3, GEM-RPX, HX3/Drawbar control, MSI Z97 MPower/4790K, Lynx Aurora 8/MADI/AES16e, OP-X PRO, Ptec, Komplete. Ashley MX-206. future MOTU M64 RME Digiface Dante for Mon./net Link to comment Share on other sites More sharing options...
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