Roland MT-90U - Manual (Page 42)

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MT-90U Basic Operation
The MT-90U can play audio files stored on USB memory or play a commercial music CD
when the CD drive (sold separately) is connected.
Features such as Metronome and Count In do not work for audio files.
Supported audio file formats
The MT-90U can play the following audio file formats.
The maximum number of audio files that the MT-90U can handle within a single folder
is 99. If you intend to copy more than 99 files onto the USB memory, create new
folders and save up to 99 files within each folder.
You cannot use a period (.) at the beginning of the file name.
You cannot use the following characters in the file name.
\ / : , ; * ? ” < >
When naming a file, use only letters and numbers.
Make sure that WAV format files end with “.wav,” AIFF format files end with “.aif,” and
MP3 files end with “.mp3.” Any other file name extensions cannot be read.
Playing Audio Files
WAV
(.wav)
Sampling frequency 44.1 kHz
Bit depth 16 bit
Channels 1 (mono) / 2 (stereo)
AIFF
(.aif)
Sampling frequency 44.1 kHz
Bit depth 16 bit
Channels 1 (mono) / 2 (stereo)
MP3
(.mp3)
Format MPEG-1 audio layer 3
Sampling frequency
44.1/32/40/48/56/64/
80/96/112 kHz
Bit rate
128/160/192/224/256/
320 kbps
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