Alpine CDA-9827, CDA-9826, cda-9825 owner manual Information, About MP3/WMA

Page 30

Information

About MP3/WMA

CAUTION

Except for personal enjoyment, duplicating audio data (including MP3/WMA data) or distributing, transferring, or copying it, whether for free or for a fee, without the 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-1 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 the audio data at extremely high ratios shrinking music files by 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 allows you to create music files and store them at higher ratios of compression than MP3 audio data (approx. half original size). This is achieved while still maintaining CD quality sound.

•Method for creating MP3/WMA files

Audio data is compressed by using MP3/WMA specified software. For details on creating MP3/WMA files, refer to the user's manual for that software.

The MP3 files that can be played back by this device have the file extension “mp3”. Files with no extension can not be played back.

WMA files have the "wma" extension. (WMA ver. 7.1 and 8 are supported)

•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, 24 kHz, 22.05 kHz

Bit rates: 32 - 192 kbps

Note that for sampling rates, this device’s frame display (Page 9) may not display correctly.

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

•ID3 tags/WMA tags

ID3 tags of this device support ID3 tag v1 and v2.

If ID3 tag/WMA tag data is in an MP3/WMA file, this device can display the title (track title), artist name, and album name ID3/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 SUPRT” is displayed.

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

•Producing MP3/WMA discs

MP3/WMA 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).

•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). File/folder names are limited to 31 characters (including the extension).

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 can not correctly play back discs recorded with Track At Once or packet writing.

28-EN

Page 29 Page 31
Image 30
Page 29 Page 31
Contents CDA-9827/CDA-9826 Alpine CD Changers Give You More Contents Installation and Connections Precautions Never Attempt the Following Detaching the Front Panel Turning Power On and OffBasic Operation Attaching the Front PanelSetting Time Audio Mute FunctionDisplaying Time Setting the Bass Control Setting the Treble Control Setting the Bass TypeSetting the MX Mode Blackout Mode On and OffAbout the indicator display Displaying the Title/TextAbout Title and Text Titling Discs/Stations Erasing Disc Title/Station TitleSetup Operation Scroll SettingSubwoofer On and Off Turning Mute Mode On/Off Setting the Tone Defeat for External DevicesSetting the AUX Mode V-Link Amplifierleft Connecting to an External AmplifierAmplifier SpeakersManual Storing of Station Presets Manual TuningAutomatic Seek Tuning Radio OperationStation Title Search Function Automatic Memory of Station PresetsTuning to Preset Stations Quick Search FunctionCD Player Operation Inserting/Ejecting DiscNormal Play and Pause Repeat Play Music Sensor SkipFast Forward and Backward X. Random PlayScanning Programs Track Search FunctionControlling CD Changer Optional When a 12-disc CD Changer is connected Multi-Changer SelectionPlaying MP3/WMA Files Playing MP3 Files with the CD Changer OptionalPlaying MP3 Data Scanning files Folder Search modeFile Search mode Folder/File Search FunctionChecking the XM Radio ID Number Storing XM Channel PresetsXM Radio Operation Optional Receiving XM Channels with the XM Receiver OptionalChannel/Category Search Function Setting the tuning methodSetting the Auxiliary Data Field Display Changing the DisplayAbout MobileHub Link Telephone Mode ON/OFFMobileHub Link Operation Optional Incoming CallsSMS Short Message Service Operation CallingRemote Control Operation Controls on Remote Control CDA-9827 onlyBattery Replacement CDA-9827 only Information About MP3/WMASampling rate Order of tracksBit rate EncodingCase of Difficulty No Disc Antenna Specifications FM Tuner SectionInstallation and Connections PrecautionsInstallation RemovalConnections CDA-9827 CDA-9825 onlyAntenna Receptacle Power Antenna Lead Blue To prevent external noise from entering the audio systemLimited Warranty ALPINE-1

cda-9825, CDA-9826, CDA-9827 specifications

The Alpine CDA-9826, CDA-9827, and CDA-9825 are remarkable head units that represent a blend of advanced technology, user-friendly design, and high-fidelity audio performance. These models cater to audiophiles and casual listeners alike, making them popular choices among car audio enthusiasts.

The CDA-9826 features a robust AM/FM tuner, enabling users to access their favorite radio stations with ease. With its built-in CD player, this unit supports CD-R and CD-RW playback, ensuring compatibility with a variety of disc formats. This model is also equipped with an auxiliary input, allowing for seamless connection of external devices, such as smartphones or portable music players. The intuitive interface boasts a large display that provides easy navigation through various settings and track information.

Moving on to the CDA-9827, this unit builds on the strengths of its predecessor. It incorporates an advanced digital signal processor (DSP), enhancing sound quality by optimizing audio signals for a clearer, more dynamic sound experience. The CDA-9827 also offers improved connectivity options, including a USB port that supports direct playback from USB devices and allows for song and artist identification. The unit's Bluetooth capability enables hands-free calling and wireless music streaming, making it a great choice for modern drivers who wish to stay connected while on the road.

The CDA-9825 is another impressive addition to Alpine's lineup, focusing more on providing essential features for a solid audio experience. While it may not have some of the more advanced options found in the 9826 and 9827 models, it still delivers excellent sound quality thanks to its powerful internal amplifier. The CDA-9825 supports various audio formats, including MP3 and WMA, ensuring listeners can enjoy their digital music library without hassle. Its equalizer settings allow users to customize their listening experience, tailoring sound profiles to their preferences.

All three models emphasize user-friendliness, featuring straightforward controls and responsive interfaces that allow drivers to adjust audio settings on the go. Alpine has prioritized aesthetic design as well, with sleek, modern finishes that complement any vehicle's interior. Collectively, the CDA-9826, CDA-9827, and CDA-9825 embody Alpine's commitment to quality sound and innovative technology, ensuring every journey is accompanied by an immersive audio experience. Whether for daily commutes or cross-country road trips, these head units make a significant impact on in-car entertainment.
Top Page Image Contents