11-EN

Alpine CDE-9874E, CDE-9872E owner manual 11-EN, Supported playback sampling rates and bit rates

68-09359Z38-A_F.book Page 11 Tuesday, September 4, 2007 4:15 PM

Supported playback sampling rates and bit rates

MP3
Sampling rates: 48 kHz,		44.1 kHz, 32 kHz, 24 kHz, 22.05 kHz,
	16 kHz,	12 kHz, 11.025 kHz, 8 kHz
Bit rates:	8 - 320 kbps
WMA
Sampling rates: 48 kHz,		44.1 kHz, 32 kHz
Bit rates:	48 - 192 kbps
AAC
Sampling rates: 48 kHz,		44.1 kHz, 32 kHz, 24 kHz, 22.05 kHz,
	16 kHz,	12 kHz, 11.025 kHz, 8 kHz
Bit rates:	16 - 320 kbps

This device may not play back correctly depending on sampling rates.

ID3 tags/WMA tags

This device supports ID3 tag v1 and v2, and WMA tag.

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.

This device can only display single-byte alphanumeric characters (up to 30 for ID3 tags and up to 15 for WMA tags) and the underscore. For non-supported characters, “NO SUPPORT” is displayed.

The tag information may not be correctly displayed, depending on the contents.

Producing MP3/WMA/AAC discs

MP3/WMA/AAC files are prepared, then written to a CD-R or CD-RW using CD-R writing software. A disc can hold up to 510 files/folders (including Root Folders), and the maximum number of folders is 255.

Playback may not be performed if a disc exceeds the limitations described above.

Media supported

The media that this device can play back are CD-ROMs, CD-Rs, and CD-RWs.

Corresponding File Systems

This device supports discs formatted with ISO9660 Level 1 or Level 2.

Under the ISO9660 standard, there are some restrictions to remember.

The maximum nested folder depth is 8 (including the root directory). The number of characters for a folder/file name is limited.

Valid characters for folder/file names are letters A-Z (all caps), numbers 0-9, and ‘_’ (underscore).

This device also can play back discs in Joliet, Romeo, etc., and other standards that conform to ISO9660. However, sometimes the file names, folder names, etc., are not displayed correctly.

Formats supported

This device supports CD-ROM XA, Mixed Mode CD, Enhanced CD (CD-Extra) and Multi-Session.

This device cannot correctly play back discs recorded with Track At Once or packet writing.

Order of files

Files are played back in the order that the writing software writes them to the disc. Therefore, the playback order may not be what is expected. Verify the writing order in the software’s documentation. The playback order of the folders and files is as follows.

Root folder
Folder	MP3/WMA/AAC File

*The folder No./ folder Name will not be displayed if no file is contained in the folder.

Terminology

Bit rate

This is the “sound” compression rate specified for encoding. The higher the bit rate, the higher the sound quality, but also the larger the files.

Sampling rate

This value shows how many times per second the data is sampled (recorded). For example, music CDs use a sampling rate of 44.1 kHz, so the sound is sampled (recorded) 44,100 times per second. The higher the sampling rate, the higher the sound quality, but also the larger the volume of data.

Encoding

Converting music CDs, WAVE (AIFF) files, and other sound files into the specified audio compression format.

Tag

Song information such as track titles, artist names, album names, etc., written into MP3/WMA/AAC files.

Root folder

The root folder (or root directory) is found at the top of the file system. The root folder contains all folders and files. It is created automatically for all burned discs.

01GB04CDE9874E.fm

ALPINE CDE-9874E 68-09359Z38-A (EN)

CDE-9872E, CDE-9874E specifications

The Alpine CDE-9874E and CDE-9872E are two standout models in the world of car audio systems, designed to enhance your driving experience with high-quality sound and advanced technological features. Both models showcase Alpine's commitment to superior audio performance, ease of use, and connectivity options.

The Alpine CDE-9874E is equipped with a powerful 4-channel amplifier, delivering 50 watts RMS per channel, ensuring that every note and beat comes through with crystal clarity. It supports a wide range of audio formats, including MP3, WMA, and AAC, which makes it versatile for users who enjoy digital music. The CDE-9874E also includes a built-in CD player, as well as a USB port for direct connection to your smartphone or MP3 player. A notable feature is the Bluetooth connectivity, allowing seamless pairing with smartphones for hands-free calls and audio streaming.

Another remarkable characteristic of the CDE-9874E is its excellent sound customization capabilities. Featuring a 3-band parametric EQ, users can tailor the audio output to their liking, while the Time Correction and Digital Signal Processing (DSP) technologies offer professional-grade sound tuning. The display is user-friendly, with a bright and clear interface that makes navigating between different audio sources and settings a breeze.

On the other hand, the CDE-9872E shares many similarities but includes a few distinct features that set it apart. While lacking Bluetooth, the CDE-9872E still provides a USB connection and supports various digital audio files, appealing to users who prefer wired connections. This model is also optimized for audio performance, with a built-in amplifier that delivers impressive sound quality.

Both models boast a robust build quality, designed to withstand the bumps of the road while maintaining optimal performance. The intuitive user interface allows for quick adjustments while driving, ensuring that your focus remains on the road ahead.

In summary, whether you choose the Alpine CDE-9874E with its advanced Bluetooth capabilities and extensive sound customization options or the CDE-9872E with its solid performance and straightforward design, both models promise to elevate your in-car audio experience to new heights. Enjoy the perfect blend of convenience, performance, and style with these exceptional car stereos.