Piano World Home Page Forums Our Most Popular Forums Digital Pianos - Electronic Pianos - Synths & Keyboards Casio AP-620 / Resonance issue remains / Question

I now have a new Casio AP-620, which was given in exchange for the other one with the sustain pedal resonance issue. The new piano also exhibits the same behavior. I believe that many Casio pianos have an inherent software issue, perhaps not directly related to the pedal.

I also have a Casio PX-130 which does the same thing, regardless of the make or model of sustain pedal that is used. To confirm matters, this makes three Casio pianos that have had this problem.

Probably not until they "verify" that this problem exists and they can duplicate it.

I recommend contacting Casio, providing company representatives with a detailed explanation of the problem you are experiencing.

Kind regards,
James
x

What exactly is the issue? (I was contacted in a PM to respond to this but there's not much in this thread for me to respond to.)

So, exactly what happens when you depress the sustain pedal? What is the issue?

Dave Horne, same for me. pv88, what do you expect from us? I have no experience with Casio DPs.

Yes, I was also PM'd...

James
x

weird thread lol. Maybe let off the pedal to cut the sound out lol.

I got a PM, too, and the question was about unwanted resonance after releasing the pedal. I have had no problems with that whatsoever. I seem to remember a question in another thread about the bass strings continuing to resonate if the person released the pedal and then immediately put it down again. I didn't look for it, but it was in the past couple of weeks. I don't know if that's the issue, but that answer for that is that on a real piano it will do the same thing so they have DPs set up to simulate it. I have had an AP-620 since mid-December and I've been very happy with it. The pedals all work just fine. It has sostenuto, soft and damper, which also does the half-damper thing, and does it well.

pv88, maybe you can tell us in more detail what the issue is. We may not be able to help with a solution, but it would be interesting to know more about the problem.

... a recording would be nice.

I as well was PM'd and am a little confused as to what you're asking pv88. Is your sustain not sustaining or continuously sustaining?

I don't see the point of sending "everyone" a PM. There is not much here to read. No details.

I'd say if two different models of Casio have the same "problem" it is by design. It may be that the engineers at Casio intended that the pedal work as it does. I guess this just proves the point everyone here always makes -- try it before you buy it. Compare it to others and don't just press a few keys, bring sheet music and headphones and spend a few hours in the store. But then in the end people buy based on price and Casio is usually the lowed priced DP.

To everyone's replies, above:

The issue is unwanted resonance occurring (from sustain pedal use), at unexpected intervals.

The effect is like that of holding down your foot through an entire passage of arpeggios (that you are sustaining), and when you have finished the passage (and your foot comes off of the pedal along with fingers off of the keys), you continue to hear that entire passage resonating onwards, just as if the dampers had never come back to rest, like on an acoustic piano.

The AP-620 that has been returned should prove to be sufficient evidence of the issue I have encountered, beyond any doubt. A technician or pianist will have to thoroughly test the instrument until the issue surfaces, and can be confirmed.

We had a similar issue some time ago where the original poster thought there was a problem with some of the tones which continued to sustain. In short time we learned that the notes in question were the top two octaves (or so) of the keyboard; in an acoustic piano those notes do not have dampers and will continue to ring. In that instance a problem turned out to be a faithful representation of an acoustic piano.

I would be most interested in learning what this problem was.

It also helps to use terms accurately. Resonance and sustain are two different creatures (as used and labeled in the owner's manual).

When I depress the sustain pedal of my N3, not only do the notes themselves sustain - the ones depressed after I depressed the pedal, I will also hear additional resonance where additional strings will vibrate sympathetically.

Yes, I too am getting PM'd.

I haven't had any sustain problems yet. (PX-330 with the supplied non-progressive footswitch pedal)

Greg.

Well, if you are so unhappy with Casio, why keep going back for more pain and suffering? There are some great digital pianos out there from the likes of Kawai, Yamaha, Roland, Korg, Nord...Even Williams or Suzuki, which are often more affordable than Casio, make digital pianos that offer the unique advantage of helping your practice for unknown perforamnce venues by emulating poorly regulated acoustic uprights.

I own a Casio Privia PX-100 at our vacation home that I paid 200 euros for and which I am absolutely ecstatic about for this price. I can't imagine that the AP-620 is much worse than the PX-100...

well I just got my casio px3 and sp32 pedal unit. Im piping it over usb-midi via asio4all 16bit @192kHz. Im trying galaxy II steinway and notice velocity spikes, not just once in a while, but pretty often. Dont think its any one note but mostly in the middle C area. not sure whats creating those randomly like that.

Also Im not getting proportional pedaling either with half pedaling option on.

Is this user bashing Casio without actual proof?
Just my thought.

First of all, I would never think of bashing Casio for any reason, since I own two Casio's at this time (AP-620, PX-130), and I happen to like both of these pianos for their great tones, excellent touch, and plentiful array of nice features. Audio recordings of the issue have not been sufficient.

What do you mean, exactly, by "audio recordings have not been sufficient"? If the notes continue to sustain after you have lifted off all keys and the sustain pedal, AND these notes are not the undamped high notes, then there's no doubt at all that this is incorrect behaviour, and Casio MUST accept that it's wrong.

Greg.

Greg,

Thanks for your reply, as I agree with everything you say, 100%.

I had already sent several audio recordings that contained the resonance glitch, but the only one that captured the additional resonance (that you could "hear") was a free audio program I used called Audacity, yet I was told that the recordings were not suitable for the Tokyo engineers, in Japan.

That is what I meant by "audio recordings have not been sufficient."

Well, have you recorded the MIDI yet? Use the internal recorder to record the MIDI. Once the glitch occurs, just stop the recorder. Obviously, you should also record the audio at the same time, and give them BOTH recordings.

It doesn't matter if, when you play back the MIDI recording, the problem doesn't occur again. Just send them both files.

If you don't want the hassle of transferring the MIDI file to your computer, just buy a memory card and record it to that, and mail them the memory card. (heck, even if they never return it, given how long you've had this problem, it would still be worth the small expense, surely!!)

I would avoid using your computer to record the MIDI - use the piano itself.

Greg.

Have a question, about the AP-620's built-in recorder:

Does it record indefinitely until you decide to stop it, or, is there a limit to recording time?

I would think it would record until the internal memory fills up. Then you would have to dump to an SD card to save what was recorded or just delete the file.

I AM ALSO EXPERIENCING THE CONTINUED SUSTAIN PROBLEM AT UNPREDICTABLE TIMES.....ALSO HAVE AN ISSUE WITH WOBBLY,CLACKING KEYS...THINK I WILL HAVE TO CONTACT CASIO!!!

Hi souwestriver,

I am glad to see that I am not the only one who has experienced the sustain pedal / resonance issue on the Casio AP-620. Take note that I have two Casio's that do this, the AP-620, and, the PX-130.

Do not exchange your current AP-620 for another one, as I have already done this. The new piano exhibited the same exact problem.

If you can record the resonance glitch to the AP-620's built-in recorder, save/transfer the recording to a 2 GB SD memory card.

Send the SD card to Casio so they can analyze the recording.

The issue has not been acknowledged, as of yet.

Have to ask as to why you are "SHOUTING" in all CAPS?

@pv88, should be no big deal if this doesn't happen all the time. PM should be just fine also regarding it's a valued new pianoworld member. I think we have more important things to discuss...

Ok - hold the phone.

I may have just experienced the problem that pv88 reported, on my PX-330. One note was still sounding after I had lifted off all keys and the sustain pedal. Instinctively, I pressed and released the sustain pedal again, and this terminated the offending note. I was using the rhythm accompaniment at the time. (I don't use it very often).

On the other hand, it could simply have been a mechanical problem with the sustain pedal. I'm using the basic footswitch pedal that came with the PX-330.

Greg.

This came up in another thread recently on a PX-130, and I mentioned that I encountered it once with my PX-330 also (using the fancy 3-pedal setup). Also, this is a pretty old thread, but still valid I guess. Not a problem with the foot pedal (mechanicals) for sure, imho.

This guy: https://www.pianoworld.com/forum/ubb...130%20vs%20Yamaha%20P95.html#Post1960089

Greg,

Can you capture this glitch on your piano, and, send it to Casio?

Probably not. It's only happened once, and I've had the PX-330 for quite a while now.

FWIW, I was playing a piece considerably slower than normal. (common time, tempo 91). The piece features a lot of triplet-trilling" in the left hand (so that would be a tempo of 3x91 = 273 bpm), and a lot of sustain pedal. I can't remember exactly where it failed. I lifted off at a point where I would not normally lift off - I was experimenting at the time.

Greg.

Greg,

That's okay, as it sounds like the issue you had may not be the same.

Extra note:

Deleted my PM since you have replied, here.

[Edited]

No problems - I was going to reply to your PM seperately though....

Greg.

[Edited]

PV88,
Not taken seriously? I personally visited your home in order to witness the behavior which you were unable to duplicate. We picked up and replaced your AP-620. Yes you did send us an audio recording but it does not allow us to prove that anything is wrong. As for the SD Card, to whom did you send it? Why send a card when you could simply email the files from it?

Mike,

Thanks for the reply, however, please note that I never did manage to send a memory card (only the audio files) since I wasn't able to figure out how to actually transfer an internal recording to the card, and, didn't know how to format the cards, either.

Read the two posts by "Lelax" and "xorbe" as there may only be two other folks (at PW) that have experienced the issue, as it is "xorbe" that has put their finger on it, precisely:

Posts by "Lelax" and "xorbe"

And, I know that you do take everything I have said (or, shown you) seriously, so I apologize for that statement.

As I am no longer interested in pursuing the issue there will be no more posts from me on this subject.

Therefore, would like to lay this one to rest.

Best regards,

pv88