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Olympus Imaging America Inc. Page 13 of 15 Last updated on September 25, 2009
Clicking on the [Stop] button launches another dialog box to confirm the devices that
are to be stopped. Clicking the [OK] button closes the USB connection.
The desktop screen will display a message balloon
above the taskbar indicating that it is
safe to disconnect the hardware.
How should the recorder be disconnected from a Macintosh computer?
Any USB device should be disconnected from a Macintosh computer either by clicking on
the EJECT button or dragging the drive icon that represents the device to the Trash.
Accessories
Will using an accessory microphone with an extended frequency
range improve the quality of my recordings?
Using an accessory microphone with an extended frequency range may not improve the
quality of the recordings in a DM-520. The recorder has an overall frequency response of
40 – 23,000 Hz, but the different quality modes modify the detail of the saved file data
by saving some frequencies and discarding others. This is how the recorder is able to
vary the potential recording time and use the built-in flash memory more efficiently.
The table below shows the overall frequency response in e
ach recording mode:
Quality Mode Overall Frequency Response
PCM 48 kHz mode 40 Hz - 23,000 Hz
PCM 44.1 kHz mode 40 Hz – 21,000 Hz
MP3 320 kbps mode 40 Hz – 20,000 Hz
MP3 256 kbps mode 40 Hz – 20,000 Hz
MP3 192 kbps mode 40 Hz – 19,000 Hz
MP3 128 kbps mode 40 Hz – 17,000 Hz
ST XQ mode 40 Hz - 19,000 Hz
ST HQ mode 40 Hz - 16,000 Hz
ST SP mode 40 Hz - 9,000 Hz
HQ mode 40 Hz - 13,000 Hz
SP mode 40 Hz - 8,000 Hz
LP mode 40 Hz – 3,000 Hz
Is there an AC adapter available for the DM-520?
The DM-520 is compatible with the optional A-514 AC Adapter. The adapter can be used
to power the recorder and also to charge the rechargeable batteries bundled with it.
The A514 AC Adapter can be purchased directly from The Olympus Store by clicking here
.
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