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A U D I O P H I L L E O 1 & 2
Firmware Update
O
ur devices are designed with modular firmware that is easily updated.
Updates will be released based on feature requests and bug reports. Please
let us know if you have any requests. We will try to include any reasonable
requests in the next firmware update.
Firmware files are simply special 44.1/24 audio files in WAV format. For updates to
work, the playback sample rate must be 44.1 KHz 24 bit. Also, media player
and computer volume should be 100% and any EQ or sound effects should be
disabled. You may use your favorite media player software. To prevent loud noises
from your speakers, please disconnect the audiophilleo output from your system when
performing these updates. If your Audiophilleo came with a PurePower, then this
must be connected to the Audiophilleo via the power cable but the Audiophilleo USB
cable will plug directly into the computer. If this update procedure does not work,
please
re-read
these
http://audiophilleo.com/support.aspx.
Note
: Never power down the computer or unplug the device during a firmware
update. Doing so may make the device unusable. The device will always reboot itself
at the end of a firmware upgrade. No unplug and re-plug procedure is required.
However, this procedure should never take more than a minute after starting to play
the firmware file, so after 1 minute of not playing the file, it is safe to unplug.
Note
: When using MS Windows and updating the firmware, the device name changes
and Windows may install the default USB audio device. In this case, please re-install
the custom device driver if it was previously used
Note
: When using OS X: You should not play the firmware.wav file directly from
Safari. You should save the file and use iTunes. Just drop the file into iTunes instead of
"adding to library" (because that can modify the file). However, iTunes resamples the
output when changing the sample rate while it is open. You must quit iTunes from the
menu bar and restart it after you set the sample rate to 44.1/24 using Audio Midi Setup.
You must also set the Audiophilleo to be the default output device by right-clicking on
it in Audio Midi Setup. Note that if iTunes is running before plugging in the AP, iTunes
will configure itself to use the sample rate of the internal audio device. If this is not
U S E R
M A N U A L
instructions.
19
5
Chapter
For
updates
please
check
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