rich.o Posted September 26, 2016 Share Posted September 26, 2016 Problem: PX-560 | CC doesn't provide smooth volume control when pedal is assigned to CC11:Expression I bought the M-Audio EX-P expression pedal. Calibrated and assigned it to CC 11 controller so I could control volume with my foot. I returned it back because it seemed to be causing a very noticeable volume jump just as the layer fades in. I was expecting the expression pedal to increase the volume smoothly, just like when you use the keyboard's master volume knob, but that's not what happened. Initially, the sound jumps from off to some low level; and it's definitely a jump and nothing like a fade in. As I further depress the pedal, it's not smooth at all in the first ~25-33% of travel. Once I'm past that first third of the travel, the pedal seems to operate smoothly. But it really kills anything subtle you're trying to do at lower volume levels. So I bought the Moog ACCEP003 EP3 expression pedal. Plugged it in; calibrated it, and same thing - volume jumping at initial fade-in and then along the first 25 - 33% of travel. Kind of like a detented pot, if you know what I mean by that. It's looking like my PX-560 is the problem. Now it could be just my keyboard, but I'm thinking that people just haven't noticed it yet because they're fading in a sound while another sound is already playing so the problem would be masked. That other sound could be coming from their own keyboard or their band mates' instruments. Either way, it probably wouldn't be noticeable. Took a while before I caught it. Anyway, I'm assuming this problem exists for all PX-560's. I'm guessing it's a firmware issue where the code/function that interprets and translates the pedal's variable resistance/impedance at its lowest levels is not granular enough to produce a smooth continuous controller response over the entire range of travel on the pedal. Maybe it's a problem having to do with the characteristics of the pedal's potentiometer, but I'm betting that routine could be written that notices when jump in db is about to happen and branch off to a subroutine that smooths out that volume level transition over time. You'd have to have to play with the timing so that is sounds natural/believable/reponsive, or as close to it as possible, but I bet could be done. Thoughts? Thanks! Quote Link to comment Share on other sites More sharing options...
RGeigerUSA Posted September 29, 2016 Share Posted September 29, 2016 I'm having the same problem. It's pretty frustrating to purchase a "flagship" model and have it not work properly on something as basic as a smooth volume transition with an expression pedal. I've tried it with THREE different pedals - all display the same behavior. Moreover, I've tested each of these pedals on 3 other keyboards (each one) and the ALL work perfectly. This is clearly a problem with the 560 and it should be fixed immediately. The other thing I have a big issue with is not being able to select a "registration" with a simple midi message. I mean, really? What's up with that? I can do it with the XW-P1, but not with the 560. Quote Link to comment Share on other sites More sharing options...
bfields Posted November 12, 2016 Share Posted November 12, 2016 For what it's worth, my experience with expression pedals: I already had a Yamaha FC7, and I could plug it in and calibrate it and it would sort-of work but no matter how I fiddled with parameters I could never get it to smoothly sweep across the range I wanted to. So I bought a Roland EV-5, because it was one of the ones listed as tested on p. EN-10 of the manual. It's been fine for my purposes. But my ear or my requirements may be different from yours. I was testing with filter cutoff on an analog synth sound, and expression on an organ sound. In both cases I'd be unlikely to notice imperfect behavior near zero. For example in the organ case I care about making the organ more or less prominent compared to the rest of the band, I'm probably never going to need it to fade in or out smoothly from silence. OK, I tried it just now: I set the EV-5 to control volume of a string sound, turned master volume all the way up and used the internal speakers, and: yeah, it's unpredictable and jumpy at the bottom of the range. Bah. Quote Link to comment Share on other sites More sharing options...
rich.o Posted November 23, 2016 Author Share Posted November 23, 2016 Exactly what I have been seeing. This is a recode for Casio. Gotta manage those subtle volume increases without jumping. Pretty much kills the thought of recording anything with CC:11 set to expression. Quote Link to comment Share on other sites More sharing options...
Geo Posted November 29, 2016 Share Posted November 29, 2016 I 'd like to buy an expression pedal that definitely works properly with my PX-560. From what I've read here, there is a problem. I have an Korg expression pedal which works well on my Korg keyboard, but only the first 25% of travel works on the PX-560. No doubt this is something to do with the potentiometer impedance. Are any senior forum contributors, who own a PX-560, aware of this issue ? And is Casio looking at the problem ? Quote Link to comment Share on other sites More sharing options...
Markkukalevi Posted December 6, 2016 Share Posted December 6, 2016 Hello I have Moog EP-3 and it works perfectly. Did you try with different positions of switches. At the bottom and on side; my positions to those are like this: 2 Quote Link to comment Share on other sites More sharing options...
PriviaMan Posted December 19, 2016 Share Posted December 19, 2016 I have the same issue, the pedal jumps, I have korg expression padel. Casio please firmware update to fix this. 1 Quote Link to comment Share on other sites More sharing options...
AlenK Posted January 5, 2017 Share Posted January 5, 2017 Here's an update to the thread and another confirmation of the problem. I recently purchased two expression pedals: the Roland EV-5 and the Moog EP-3. The first is on Casio's list of verified pedals. The second is not but it actually cost less than the EV-5 and, well, it's from Moog! I always wanted something from Moog and this is about all I could afford from them () so after Mark's informative post above I took a small chance and bought it too. I'm glad I did. Although the EV-5 and EP-3 are both made primarily of plastic (with metal base plates) the EP-3 is much heavier, seemingly much more solid (thicker plastic?) and a little smoother in operation. It's taller but that isn't usually a downside for a foot-pedal. I can confirm the basics of Mark's post above. With the bottom switch in the "Other" position and the trim knob on the side of the pedal in the position shown, the pedal worked as well as the EV-5 when the latter was used with its trim knob in the "0" position (any other position just adds resistance in series with the pedal's main potentiometer, which serves to change the minimum voltage output from the pedal). But, that is not to say it worked _perfectly_. With either pedal I heard the problem people are reporting above. I heard it regardless of whether I recalibrated when switching pedals or not (I actually didn't really have to recalibrate - each pedal worked more-or-less the same with the other's calibration settings). I listened very carefully and this is what I heard: When moving from minimum value (heel down) to maximum value (toe down) the volume when adjusting CC#11 (Expression) abruptly jumped from zero to not-zero at a particular (clockwise) rotation point, then jumped to _another_ slightly louder level with a couple of degrees further rotation and then, usually, smoothly increased from there to maximum. ("Usually" because I sometimes heard a _third_ abrupt step a few more degrees of rotation after I heard the second step.) When going in the other direction, from toe fully down to heel fully down, I heard an abrupt lowering of volume at some point in the (anticlockwise) rotation from toe fully down and then a smooth reduction in volume until near the bottom of travel, when I usually heard an abrupt step back to zero volume. However, sometimes I did _not_ hear the abrupt step and the volume merely decreased to a very low value that was _not_ zero. So, inconsistent behavior dependent on position (angle), direction of rotation, and, perhaps, random chance but none of it correct. BOTH pedals exhibited the problem, the difference being that in the case of the EP-3 the first abrupt transition from zero volume to low volume during clockwise rotation from full heel down, and from low volume to zero volume during anti-clockwise rotation, occurred much closer to the bottom of the pedal's travel (almost near the end, in fact). I suspect this has something to do with the two pedals having different effective linearity's for some reason. This may be why Mark reported perfect operation; it happens so close to the end of travel that it is very easy to miss. The fact that the EP-3 works at all strongly suggests to me that the PX-560 (and probably the MZ-X models as well) does not necessarily require a pedal with a 10Kohm potentiometer despite what the user's guide indicates. MOST expression pedals work as simple voltage dividers, using the potentiometer to send some fraction of a reference voltage sent by the keyboard back to it. The full resistance value of the pot is thus immaterial to this function; it only affects the amount of current that the pedal's full resistance draws and the current sent back to the ADC inside the keyboard that is reading the divided voltage. If the full resistance value is too low the current drawn from the voltage reference output may be more than the source of that voltage (ultimately a pin on a chip inside the keyboard) should or can provide. So you probably shouldn't go much lower than the 10K "requirement," otherwise you could stress the chip or even cause chip failure (if the circuit designer did not adequately protect against that possibility). If, OTOH, the full resistance is too high the ADC may not be able to measure the divided voltage properly. However, in the latter case the resistance would have to be very high indeed. I measured resistances between 25K and a bit over 100K when rotating the EP-3 pedal and those evidently do not cause any problem with reading the voltage. (At least with my PX-560 and EP-3: YMMV.) The PX-560 (and MZ-X models) appear to connect the reference voltage to the ring and the divided voltage to the tip, with the sleeve connected to ground. The verified pedals listed in the PX-560 user's guide appear to operate that way. (Note that the Kurzweil CC-1 is actually a re-branded Fatar.) I believe, but have not verified, that the EP-3's "polarity" switch swaps the ring with the tip. I will have to do further investigation of that. IIRC, I did not get correct operation with the switch in the "standard" position. Upshot is, there is indeed a significant "bug" with the way the PX-560 reads the expression pedal. I don't know if this was fixed in the MZ-X models or whether it is fixable with a mere software update in the case of the PX-560. I hope so. Depending on exactly how you are using the expression pedal the bug may or may not affect your playing. Regardless, it is undeniably there and deserves to be addressed by Casio in the next firmware update if it is possible to do so. 2 Quote Link to comment Share on other sites More sharing options...
PriviaMan Posted January 6, 2017 Share Posted January 6, 2017 14 hours ago, AlenK said: Here's an update to the thread and another confirmation of the problem. I recently purchased two expression pedals: the Roland EV-5 and the Moog EP-3. The first is on Casio's list of verified pedals. The second is not but it actually cost less than the EV-5 and, well, it's from Moog! I always wanted something from Moog and this is about all I could afford from them () so after Mark's informative post above I took a small chance and bought it too. I'm glad I did. Although the EV-5 and EP-3 are both made primarily of plastic (with metal base plates) the EP-3 is much heavier, seemingly much more solid (thicker plastic?) and a little smoother in operation. It's taller but that isn't usually a downside for a foot-pedal. I can confirm the basics of Mark's post above. With the bottom switch in the "Other" position and the trim knob on the side of the pedal in the position shown, the pedal worked as well as the EV-5 when the latter was used with its trim knob in the "0" position (any other position just adds resistance in series with the pedal's main potentiometer, which serves to change the minimum voltage output from the pedal). But, that is not to say it worked _perfectly_. With either pedal I heard the problem people are reporting above. I heard it regardless of whether I recalibrated when switching pedals or not (I actually didn't really have to recalibrate - each pedal worked more-or-less the same with the other's calibration settings). I listened very carefully and this is what I heard: When moving from minimum value (heel down) to maximum value (toe down) the volume when adjusting CC#11 (Expression) abruptly jumped from zero to not-zero at a particular (clockwise) rotation point, then jumped to _another_ slightly louder level with a couple of degrees further rotation and then, usually, smoothly increased from there to maximum. ("Usually" because I sometimes heard a _third_ abrupt step a few more degrees of rotation after I heard the second step.) When going in the other direction, from toe fully down to heel fully down, I heard an abrupt lowering of volume at some point in the (anticlockwise) rotation from toe fully down and then a smooth reduction in volume until near the bottom of travel, when I usually heard an abrupt step back to zero volume. However, sometimes I did _not_ hear the abrupt step and the volume merely decreased to a very low value that was _not_ zero. So, inconsistent behavior dependent on position (angle), direction of rotation, and, perhaps, random chance but none of it correct. BOTH pedals exhibited the problem, the difference being that in the case of the EP-3 the first abrupt transition from zero volume to low volume during clockwise rotation from full heel down, and from low volume to zero volume during anti-clockwise rotation, occurred much closer to the bottom of the pedal's travel (almost near the end, in fact). I suspect this has something to do with the two pedals having different effective linearity's for some reason. This may be why Mark reported perfect operation; it happens so close to the end of travel that it is very easy to miss. The fact that the EP-3 works at all strongly suggests to me that the PX-560 (and probably the MZ-X models as well) does not necessarily require a pedal with a 10Kohm potentiometer despite what the user's guide indicates (the MZ-X manuals seem to be missing that information!). MOST expression pedals work as simple voltage dividers, using the potentiometer to send some fraction of a reference voltage sent by the keyboard back to it. The full resistance value of the pot is thus immaterial to this function; it only affects the amount of current that the pedal's full resistance draws and the current sent back to the ADC inside the keyboard that is reading the divided voltage. If the full resistance value is too low the current drawn from the voltage reference output may be more than the source of that voltage (ultimately a pin on a chip inside the keyboard) should or can provide. So you probably shouldn't go much lower than the 10K "requirement," otherwise you could stress the chip or even cause chip failure (if the circuit designer did not adequately protect against that possibility). If, OTOH, the full resistance is too high the ADC may not be able to measure the divided voltage properly. However, in the latter case the resistance would have to be very high indeed. I measured resistances between 25K and a bit over 100K when rotating the EP-3 pedal and those evidently do not cause any problem with reading the voltage. (At least with my PX-560 and EP-3: YMMV.) The PX-560 (and MZ-X models) appear to connect the reference voltage to the ring and the divided voltage to the tip, with the sleeve connected to ground. The verified pedals listed in the PX-560 user's guide appear to operate that way. (Note that the Kurzweil CC-1 is actually a re-branded Fatar.) I believe, but have not verified, that the EP-3's "polarity" switch swaps the ring with the tip. I will have to do further investigation of that. IIRC, I did not get correct operation with the switch in the "standard" position. Upshot is, there is indeed a significant "bug" with the way the PX-560 reads the expression pedal. I don't know if this was fixed in the MZ-X models or whether it is fixable with a mere software update in the case of the PX-560. I hope so. Depending on exactly how you are using the expression pedal the bug may or may not affect your playing. Regardless, it is undeniably there and deserves to be addressed by Casio in the next firmware update if it is possible to do so. Agree 100% it should be looked at by Casio and hopefully be fixed with firmware update. Casio support please pay attention to this bug. Thanks. 2 Quote Link to comment Share on other sites More sharing options...
fearless Posted January 31, 2017 Share Posted January 31, 2017 I did decide to purchase the px 560 despite knowing the problem with using expression; I have discovered the same issue with using an expression pedal (to a lesser degree the same problem persists with when using the mod wheel to control volume). I have found a work around that although not perfect works better for me than abrupt, uneven jumps of volume: I set the minimum value of the pedal to 1 instead of 0 and I didn't notice the annoying jumps in output volume. The down side is that the layer is never off completely; it does sound softly and can be heard. The work around for that can be accomplished by muting the zone on the touch screen. Hopefully Casio will find a software solution to the problem, but I think I can live with this for now since the keyboard action, sounds, portability, and ease of navigation and editing are very good. Hope this helps. 2 Quote Link to comment Share on other sites More sharing options...
AlenK Posted February 1, 2017 Share Posted February 1, 2017 That is an interesting discovery and workaround. If the mod wheel behaves in a similar manner, although not exhibiting the problem as obviously (I did not think to try the mod wheel!) perhaps the problem is with the PX-560's internal (s/w) control of volume, not with how it is reading the expression pedal. If that is indeed the case that's actually kind of a bigger problem! 1 Quote Link to comment Share on other sites More sharing options...
fearless Posted February 1, 2017 Share Posted February 1, 2017 Unfortunately every electronic instrument or device has quirks. I think these can be managed in various ways. I do often play fading strings/pads in and out and have been practicing when and how I initialize these fades. Not ideal but I think workable. Cheers. Quote Link to comment Share on other sites More sharing options...
chuckiep Posted February 9, 2017 Share Posted February 9, 2017 I was having same problem. Changed pedal to M Gear EXP pedal, changed control setting on expression pedal to volume CC#7; and adjusted volume range to 0-off and max -85. Have much smoother volume changes for strings layered behind piano. Another interesting approach I tried to fix this problem was calibrating the minimum and maximum pedal volume using different pedal locations. For example, when calibrating for lowest volume, I would move the pedal slightly up from lowest possible position before executing. I got varying degrees of success with this but it was worth trying to learn how it affects the pedal operation with the keyboard. 1 Quote Link to comment Share on other sites More sharing options...
AlenK Posted February 9, 2017 Share Posted February 9, 2017 @chuckiep, Which pedal did you have before you tried the M-Audio EX-P? As far as I have been able to determine from online comments the EX-P is functionally equivalent (circuit wise) to the Roland EV-5 when the EX-P's polarity switch is in the EV-5-compatible position, which it would have to be in order to be used with the PX-560. As I described above I didn't have a lot of luck with the EV-5 regardless of where I put the knob or where the knob was when I performed a calibration. (I too tried it in different positions during calibration to see what would happen - nothing useful, as a far as I could determine.) I preferred the response of the Moog EP-3, which didn't exhibit that abrupt step I mentioned from very low volume to zero volume until almost the end of downward travel. I also thought the EP-3 physically felt more rugged than the EV-5. In any case I elected to return the EV-5 and keep the EP-3. 1 Quote Link to comment Share on other sites More sharing options...
chuckiep Posted February 10, 2017 Share Posted February 10, 2017 I was using the Yamaha FC7 pedal which works with my Nord Stage 2 but not smoothly with my PX-560. On the Mgear pedal , I have the side volume knob off (all the way counterclockwise). I changed the control setting on PX-560 expression pedal to Volume CC7 vice Expression CC11. It works very smooth up and down in volume all the way down to off. Quote Link to comment Share on other sites More sharing options...
chuckiep Posted February 10, 2017 Share Posted February 10, 2017 EP3 pedal sounds like the ideal solution. Was it very expensive? Quote Link to comment Share on other sites More sharing options...
AlenK Posted February 10, 2017 Share Posted February 10, 2017 On Amazon the EP-3 is currently only a couple dollars and change more expensive than the EX-P. Circuit-wise it is not the same as the EX-P or EV-5 but as Mark originally posted above and I confirmed it does work with the PX-560 if you set it up as described. Personally, if I already had an EX-P I would keep it. But if you should ever buy a second pedal the EP-3 is a good choice. I returned the EV-5 because I only need one pedal right now. The EV-5 was actually more expensive than the EP-3, even when I bought it on sale. Good to know that the steps that are heard when CC#11 is the target disappear when CC#7 is used instead. Software moves in mysterious ways! Quote Link to comment Share on other sites More sharing options...
chuckiep Posted March 2, 2017 Share Posted March 2, 2017 Purchased Moog EP-3 pedal a few days ago and with a little adjusting, it produces the smoothest volume changes I have experienced so far for the PX560. Thanks for advise on EP-3 pedal Quote Link to comment Share on other sites More sharing options...
willisdotcom Posted March 5, 2017 Share Posted March 5, 2017 just got my 560 last week and just got my mission engineering ep-1 expression pedal today. the ep-1 is smooth all the way from off to full volume for me. it was really expensive, but i like all metal pedals and this one fits the bill. i think all of the pedals with the extra side volume pots etc all seem to be the pedals people have issues with. keep it simple, just 1 pot, 1 stereo jack and 3 wires and less problems to encounter. Quote Link to comment Share on other sites More sharing options...
Jmo101 Posted March 8, 2017 Share Posted March 8, 2017 Had the same problem but accidentily found a (cheap) workaround. Bought a QuikLok volume pedal, opened it up and adjusted the throw on the shaft, I use the expression setting in the 560 and it works pretty good. Bought this pedal because shop I bought the keyboard at was out of the Yamaha FC7's I normally use and was out of town. Got back in town hooked up a FC7 and it wouldn't zero out the volume so useless for me. On the downside, the QuikLok is plastic, not heavy-duty at all, have to see how long it lasts. Better than nothing, would like to see a software/firmware fix. Quote Link to comment Share on other sites More sharing options...
rich.o Posted March 12, 2017 Author Share Posted March 12, 2017 Hey Casio, any update on this? Is this an unsolvable hardware problem, or a firmware fix? Quote Link to comment Share on other sites More sharing options...
AlanLaBudde Posted March 20, 2017 Share Posted March 20, 2017 some one asked the price of moog ep3 i think...mine was 40 dollars from Sweetwater..... uhm.....hope it works ....havent tried it yet.....will update if i have same problems Quote Link to comment Share on other sites More sharing options...
AlanLaBudde Posted March 21, 2017 Share Posted March 21, 2017 just to make sure for the above posts about the moog ep3.... did you calibrate your pedal? in the system tools? cant remember the menu name..... Quote Link to comment Share on other sites More sharing options...
AlenK Posted March 21, 2017 Share Posted March 21, 2017 Yes. Adjust the pedal first as per Mark's instructions (follow the pictures) then do the calibration procedure as per the User's Guide. As per Fearless's comment, set the pedal to control Volume, not Expression. That's in the User's Guide, too. Quote Link to comment Share on other sites More sharing options...
AlanLaBudde Posted March 21, 2017 Share Posted March 21, 2017 i set it to panning ...i really want to try that one out with the midi recorder! as i've said before...if fooling around with distortion settings....turn your volume to LOW!!!!! or set the pedals second parameter for the pedal to a low maximum level....almost blew my speakers!!!!! Quote Link to comment Share on other sites More sharing options...
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