Kawai Concert Artist CA58 Owner's Manual page 132

Troubleshooting
 MP3/WAV/SMF files
Issue
No sound can be heard when playing an MP3
or WAV audio file stored on a USB memory
device.
An MP3/WAV audio file stored on a USB
memory device sounds strange, or does not
play back correctly.
When recording MP3/WAV audio files, the
volume is too low/too high (distorted).
An SMF MIDI file stored on a USB memory
device sounds strange when played back.
132
Possible Cause and Solution
Check that the audio player volume is not set to 0.
Check that the format of the audio file is supported and listed in the
'Audio Player supported format specifications' table.
Check that the format of the audio file is supported and listed in the
'Audio Player supported format specifications' table.
The file transfer speed of the USB memory device may be too slow to
play the audio file. Please try using a different USB memory device,
ensuring that it conforms to USB2.0 Hi-Speed standards.
Check the gain setting before recording the audio, and if necessary
adjust to increase/decrease the recording level.
The CA58 digital piano does not contain the full General MIDI sound
bank selection. Consequently, some SMF song files may not be
reproduced entirely accurately when played through the instrument.
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