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Information
Product Software Update
This product use software that can be updated through a USB flash
drive. Download the software from the Alpine website and update the
product using the USB flash drive.
Updating this product
Check the Alpine website for details on updating.
http://www.alpine.com.au
Important information on the software
About the software license of the product
The software installed in the product contains open-source software.
For details, refer to the "Open source licenses" screen on this unit. See
"Displaying Warranty/Copyright Information" (page 13).
About the Supported Formats
About MP3/WMA/AAC/FLAC/WAV
CAUTION
Except for private use, duplicating audio data (including
MP3/WMA/AAC/FLAC/WAV data) or distributing,
transferring, or copying it, whether for free or for a fee,
without permission of the copyright holder is strictly
prohibited by the Copyright Act and by international
treaty.
What is MP3?
MP3, whose official name is "MPEG Audio Layer 3," is a compression
standard prescribed by the ISO, the International Standardization
Organization and MPEG which is a joint activity institution of the IEC.
MP3 files contain compressed audio data. MP3 encoding is capable
of compressing audio data at extremely high ratios, reducing the size
of music files to as much as one-tenth their original size. This is
achieved while still maintaining near CD quality. The MP3 format
realizes such high compression ratios by eliminating the sounds that
are either inaudible to the human ear or masked by other sounds.
What is WMA?
WMA, or "Windows Media™ Audio," is compressed audio data.
WMA is similar to MP3 audio data.
What is AAC?
AAC is the abbreviation for "Advanced Audio Coding, " and is a basic
format of audio compression used by MPEG2 or MPEG4.
What is FLAC?
FLAC (Free Lossless Audio Codec) is an audio file codec for lossless
compression, developed and offered as open source software.
Codecs with lossy compression forms, such as MP3 and AAC, reduce
part of the data to improve compression efficiency.
However, FLAC can reconstruct compressed data to be an identical
copy of the original data by performing lossless compression. The
compression ratio of FLAC is about 50%.
Method for creating MP3/WMA/AAC/FLAC/WAV (USB Flash drive) files
Audio data is compressed using software with MP3/WMA/AAC/FLAC/
WAV (USB Flash drive) codecs. For details on creating MP3/WMA/
AAC/FLAC/WAV (USB Flash drive) files, refer to the user's manual for
that software.
MP3/WMA/AAC/FLAC/WAV (USB Flash drive) files that are playable
on this device have the file extensions.
MP3: "mp3"
WMA: "wma"
AAC: "m4a"
FLAC: "flac"/"fla"
WAV: "wav"
WMA is not supported for the following files, Windows Media Audio
Professional, Windows Media Audio 10 std or Windows Media Audio
10 Pro Lossless.
There are many different versions of the AAC format. Confirm that the
software being used conforms to the acceptable formats listed
above. It's possible that the format may be unplayable even though
the extension is valid.
Playback of AAC files encoded by iTunes is supported.
Supported playback sampling rates and bit rates
MP3 (USB Flash drive)
Sampling rates:
8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz,
24 kHz, 32 kHz, 44.1 kHz, 48 kHz
Bit rates:
8 - 320 kbps
WMA (USB Flash drive)
Sampling rates:
8 - 48 kHz
Bit rates:
8 - 384 kbps
AAC (USB Flash drive)
Sampling rates:
8 - 48 kHz
Bit rates:
8- 384 kbps
FLAC (USB Flash drive)
Sampling rates:
8 - 48 kHz
Bit rates:
8 - 384 kbps
WAV (USB Flash drive)
Sampling rates:
8 - 48 kHz
Bit rates:
64 - 1,536 kbps
This device may not play back correctly depending on sampling
rates.
ID3 tags/WMA tags
This device supports ID3 tag v1.0, v1.1, v2.2, v2.3, v2.4, and WMA tag
Ver.1.x. If tag data is in an MP3/WMA/AAC file, this device can display
the title (track title), artist name, and album name ID3 tag/WMA tag
data.
For non-supported characters, "?" is displayed.
The number of characters may be limited, or not correctly displayed,
depending on the tag information.
Playing back MP3/WMA/AAC/FLAC/WAV
MP3/WMA/AAC files are prepared, then written to a USB flash drive.
• Maximum numbers of playable files/folders
USB Flash drive: 10,000 files/folders (including Root Folder)
• Largest playable file size: 512 MB
Playback may not be performed if a disc exceeds the limitations
described above.
If a file/folder name is long, the maximum possible number of files
may decrease.
• Both Audio and Video files are counted if their formats are
playable on this unit.
Media supported
The media that this device can play back a USB flash drive.
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-EN
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