15
Pro Keys 88 • User Guide
English
If you are experiencing clipping or distortion:
• Turn the volume faders down. You may be overloading the device you have connected the ProKeys 88 to.
• If you are recording the audio from your ProKeys 88 on a computer, the distortion may be due to the audio settings of your
computer’s sound card. This can be corrected by increasing the audio buffer size on your soundcard.
My M-Audio hardware suddenly stopped working after having performed fine since installation.
• Switch off the unit and leave for 10 seconds. Then restart your computer and try again. If the problem persists, you may have
to re-install drivers for the unit. The latest drivers are available at http://www.m-audio.com.
I have plugged in a Sustain Pedal to my M-Audio keyboard, but it works the wrong way.
• The polarity of the Sustain Pedal is determined by the keyboard when it is powered up. On power up, the Sustain Pedal is
assumed to be in the OFF position. So, if you want the Sustain Pedal to be off when it is not pressed, make sure the pedal is
not pressed when you power up.
When I press a key, there is a delay before I hear any sound.
• This delay is known as latency. Latency with MIDI signals is due to the soft-synth you are using. MIDI data is simply control
data. The MIDI is read by the soft-synth. The soft-synth then completes a large number of complex calculations in order to
produce the sound you hear. All this takes time. If you already have an adequate sound card, try re-installing the latest
drivers for the sound card, or try reducing the buffer sizes of the audio drivers.
• If you feel that you may need a new or upgraded soundcard, please visit http://www.m-audio.com.
Contact
If you have any questions, comments or suggestions about this or any M-Audio product, we invite you to contact us by using the
following information:
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