Piano World Home Page Forums Our Most Popular Forums Digital Pianos - Electronic Pianos - Synths & Keyboards Casio PX-780 Problem with Ivory/Synthesia/Pianoteq

So I plug it into my pc with a USB to midi cable online and this happens

:

If you press one note it all works fine. you can play if you only press one note and no chords

Press more than 1 note and the last one you press holds in forever and plays the sound even if you press it again

Third note, same thing


Anyone know how to fix this?

Video : ( Sound plays fine from my piano. I don't think there is any sound in the video )

https://www.youtube.com/watch?v=kqnzTz5c8gU&feature=youtu.be


What could the problem be?

Hi, we'll need more information.

What PC are you using and what are the specs? Mac or Windows? Which processor and how much RAM available?

I don't own the specific Casio instrument you are referring to, but you should check and see if use with your PC requires a driver.
Here is a good place to check if you don't have that information in the manual.
CASIO DOWNLOADS

Windows 7

Intel I3 @550k Dual-Core 3.2Ghz

Nvidia Gtx 650 2GB Vram

4GB 1333 Ram Sticks x2 ( Both slots used. total of 8 ram )

930GB Harddrive at 7200 RPM

Ga-h55m-s2v Motherboard

I guess this is all you need.


It says the driver should automatically install when I plug in my midi cord into the computer from my Piano.

I too have had a similar problem when using pianoteq with my older Casio px401r. I am also running windows 7.
Specs are Amd phenom II x4 with nvidia 550 ti. I downloaded the Casio drivers as well.

Thanks,

Are you using the audio card on the motherboard? If so, do you have ASIO drivers for it?If not, you can see if this will work with it.
ASIO4ALL
If you don't already own one, I recommend getting a good low latency audio interface. But for now, ASIO4ALL should work.

OK, so it appears that the PX-780 is class compliant USB MIDI. I suggest trying the following.
Shut down the computer and the Casio.
Start the computer, let it finish booting.
Turn on the Casio, wait to either hear that "Bdonk" sound Windows makes when a new device is attached and recognized, or you see the install process complete and Windows says your device is installed and ready to use.
Launch just one of your software packages. Why not just Pianoteq standalone for example.
Go to its Audio/MIDI setup section and look for CASIO-USB MIDI as your input choice. Then set your AUDIO device as ASIO4ALL driver.

Get back to us on your progress.

Good luck!

I don't think you have a driver problem -- but if you can get Windows 7 drivers from the Casio website, you should install them.

You can watch the MIDI signal stream in Pianoteq:

File | Audio/MIDI Setup | MIDI

will give you a window that shows MIDI messages from the PX-780.

Before you go any further, set

. . . "Current MIDI Mapping" to "Minimalistic hi-res velocity"

to properly handle the PX-780 two-byte "MIDI velocity" code.

[That may fix your problem.]

There should be a "Note On" message for each time you press a key, and a "Note Off" message for each time you release a key.

What I notice:

. . . You have a slow CPU -- an Intel i3.

It's running at a pretty high CPU cycle speed, so it _should_ be OK.

You can see how heavily the CPU is loaded, in Pianoteq:

File | Audio/MIDI setup | Perf

If the "audio load" is hitting 100%, or you're getting lots of red lines (CPU overload) when you play, you need to work on ways to reduce CPU load.

Do a bit more testing, and report back --

. Charles

It appears when I plug in my midi cable and go to something like synthesia it says

" USB2.0-MIDI " Instead of the casio name.

Im trying to get this mainly to work for Synthesia,

( I don't think I have pianoteq anymore )

You can start with disconnecting the Casio's USB cable.
Download and install the correct drivers from here: http://support.casio.com/en/support/download.php?cid=008&pid=20
There is enough information above to get this straightened out after you've installed the drivers.

did that and it still uses the current drivers I have ( Tried uninstalling my current ones )

The PX-780 manual makes no mention of a driver install - which is what made me think it was a class compliant MIDI device and would be able to use Window's generic drivers. Checking the Privia website, it says...

"USB MIDI
Casio continues the tradition or providing "class compliant" USB connectivity on Privia digital pianos. This allows Privia to be used with Mac or Windows computers without the need for downloading drivers. Class Compliant USB MIDI also allows Privia digital pianos can also be used as a controller the Apple iPad simply with the use of Apple's Camera Connection Kit."

So, yes. You should be able to simply attach the USB cable and Windows should recognize the Casio as a class compliant device with no need for a driver install. My feeling at the moment is you should try to use something other than Synthesia. Download the Pianoteq demo and and go through the steps I described above.

Guys, let's slow down.

Rozzok - what type of connection to computer do you use? You have repeatedly mentioned USB-MIDI cable (i.e. a cable that has usb on one end and MIDI on the other). Elmer keeps talking only about direct USB connection (USB on both ends). PX780 provides both types of connectivity.

If it's a USB-MIDI cable, the problem is most probably caused by the cable itself. There are many usb-midi cables that don't really work. If you return the cable and buy a better one there is a good chance that it would solve the problem.

you should be able to connect the 780 by using a USB cord into your computer... not a midi cable...
Casio continues the tradition of providing “class compliant” USB connectivity on Privia digital pianos. This allows Privia to be used with Mac or Windows computers without the need to download drivers.
other ideas...
did u try turning the local switch to OFF?
some programs don't use the new midi 3 protocol yet and it may be on your board by default... look for a midi setting to output midi 1.0
i'm not familiar with these programs. i take it that they run in a standalone mode? in the setup can you adjust the buffer size? do you run another program that the board works perfectly well in?

Works fine now, used my USB A/B Cord, reached around my room to my desktop and now it doesn't double tap



midi had its time. back to usb

glad to hear it.
still reccomend ASIO4ALL if you're using the audio on the motherboard and finding too long a delay between when you strike the PC-780 and when you hear the sound in your head phones.
best.

This is a common problem when we use low cost Midi Interface or broken cable...

Try to connect external decent quality external MIDI interface ( from Roland, Maudio etc). Probably it will solve the problem imediatly.