12. Using The Bk-9 As A Usb Player; Getting Ready To Use The Bk-9 As A Usb Player; File Types The Bk-9 Can Read And Play Back; Selecting A Song Or Rhythm On A Usb Memory - Roland BK-9 Owner's Manual

12. Using the BK-9 as a USB player

This section explains how to playback MIDI (SMF) and audio songs
stored on an optional USB memory. Note that it is also possible to
select rhythms on that device and to use them in the same way as
the internal rhythms. New song and rhythm files can be copied to
the USB memory using your computer as you purchase them.
Getting Ready to Use the BK-9 as a
USB Player
1.
On your computer, copy the new song and rhythm files to
an optional USB memory (memory stick).
NOTE
Use USB memory sold by Roland (M-UF-series). We cannot
guarantee operation if any other USB memory is used.
2.
Connect the USB memory to your BK-9.
NOTE
Carefully insert the optional USB memory all
the way into the port until it is firmly in place.
NOTE
Never remove a USB memory while this unit
is turned on. Doing so may corrupt the unit's
data or the data on the USB memory.
NOTE
The BK-9 supports USB memories with a capacity of up to 2 TB.

File types the BK-9 can read and play back

Extension
Rhythms .stl
.mid
Standard MIDI Files
(SMF)
.kar
.mp3
Audio files
.wav, .aif
NOTE
The BK-9 is not able to read audio files with ".AIFF" extension.
Please use your personal computer to rename the file extension
to ".AIF".
44
Format
0 or 1
• MPEG-1 Audio Layer 3
• Sampling frequency: 44.1kHz
• Bit rate: 32/40/48/56/64/80/96/112/
128/160/192/224/256/320 kbps,
VBR (variable bit rate)
• 16-bit linear
• Sampling frequency: 44.1 kHz
• Stereo/mono

Caution when Playing Back Audio Files

Playing back an mp3 file or changing the playback tempo of an
audio file places a significant processing burden on the BK-9, and in
some cases may cause it to be unable to completely process all of the
performance data from the keyboard.
If this occurs, you may be able to solve the problem by taking the
following actions.
• Use WAVE/AIFF format data rather than mp3 format data
• Return the song tempo to its original setting (to 0%)
An mp3 file has little time of the blank at the head and the end of
the file. Therefore, the sound might cut off when an mp3 file played
repeatedly with Audio Key function.
If this occurs, you may be able to solve the problem by taking the
following actions.
• Use WAVE/AIFF format data rather than mp3 format data
Selecting a Song or Rhythm on a USB
Memory
1.
Connect an optional USB memory to the BK-9 or, if it was
already inserted, press the [USB MEMORY] button
After a few seconds, the display shows the contents of the USB
memory.
The icons to the left of the file names indicate the file type:
Icon Explanation
Rhythm file
SMF file
Audio mp3 file or .KAR
Audio WAVE file or .AIF
Folder
2.
Rotate the dial to select the file you want to play back or
display.
3.
Push the dial to load the file.
The [USB MEMORY] button now lights to indicate that you selected
a file on the USB memory.
If the file you need is located inside a folder, you must first select
that folder, push the dial to see its contents and then select the file.
If you opened a folder by mistake, press the [EXIT] button to return
to a higher level.
MEMO
Press and hold the [EXIT] button to return to the main page.
Right Display