CD/MP3/WMA/AAC Operations, What is MP3?

CD/MP3/WMA/AAC Operations

MP3/WMA/AAC

What is MP3?

MP3 is an audio compression method and classified into audio layer 3 of MPEG standards. This audio compression method has penetrated into PC users and become a standard format.

This MP3 features the original audio data compression to about 10 percent of its initial size with a high sound quality. This means that about 10 music CDs can be recorded on a CD-R disc or CD-RW disc to allow a long listening time without having to change CDs.

What is WMA?

WMA is the abbreviation of Windows Media Audio, an audio file format developed by Microsoft Corporation.

Notes:

•If you play a file with DRM (Digital Rights Management) for WMA remaining ON, no audio is output (The WMA indicator blinks).

•Windows Media™, and the Windows ® logo are trademarks, or registered trademarks of Microsoft Corporation in the United States and/or other countries.

●To disable DRM (Digital Rights Management)

1.When using Windows Media Player 9/10/11, click on TOOL ➜ OPTIONS ➜ MUSIC RECORD tab, then under Recording settings, unclick the Check box for RECORD PROTECTED MUSIC. Then, reconstruct files.

Personally constructed WMA files are used at your own responsibility.

What is AAC?

•AAC is an acronym for “Advanced Audio Coding” and refers to the audio compression method used with video compression standards MPEG-2 and MPEG-4.

•AAC files composed with the following conditions can be played:

-AAC files encoded with iTunes.

-iTunes Ver. 7.0 or earlier.

-File extension “.m4a” (“.M4A”)

•Tracks purchased at an iTunes Music store, and copyright-protected files cannot be played.

•When playing AAC files that include image data, additional time may be required before playback begins.

•Files may not play properly, depending on the iTunes version under which an AAC file is encoded.

Precautions when creating MP3/ WMA/AAC file

●Usable sampling rates and bit rates 1. MP3: Sampling rate 8 kHz-48 kHz,

Bit rate 8 kbps-320 kbps / VBR

2. WMA: Bit rate 8 kbps-320 kbps

3. AAC: Sampling rate 8 kHz-48 kHz, Bit rate 8 kbps-320 kbps / VBR

●File extensions

1.Always add a file extension “.MP3”, “.WMA” or “.M4A” to MP3, WMA or AAC file by using single byte letters. If you add a file extension other than specified or forget to add the file extension, the file cannot be played.

2.Files without MP3/WMA/AAC data will not play. The indication “NO FILE” appears in the play time display if you attempt to play files without MP3/WMA/AAC data.

∗When VBR files are played, the play time display may differ the play location.

∗When MP3/WMA/AAC files are played, a little no sound part is caused between tunes.

English

DXZ388RUSB/DXZ389RUSB/DXZ389RGUSB 23

DXZ388RUSB, DXZ389RUSB, DXZ389RGUSB specifications

The Clarion DXZ389RGUSB, DXZ389RUSB, and DXZ388RUSB are a series of high-quality car audio receivers that blend contemporary technology with user-friendly design, making them exceptional choices for enhancing your in-car entertainment experience.

All three models feature a sleek and modern aesthetic, ensuring they naturally blend into the dashboard of any vehicle. The units come equipped with a vibrant, easy-to-read display, allowing users to navigate menus and settings with ease. The clarity and brightness of the screens are particularly noteworthy, making it simple to view information in varying lighting conditions.

One of the key features of the DXZ389RGUSB and its counterparts is their robust connectivity options. Each model includes multiple USB ports, enabling users to connect various devices and play their favorite music directly from a USB drive. The USB ports support a wide range of audio formats, ensuring compatibility with most digital music collections.

Compatible with both Android and iOS devices, these receivers allow for seamless smartphone integration. Users can easily access their music libraries, podcasts, and calls while driving, promoting safety and convenience. The models also support Bluetooth connectivity, allowing for wireless streaming of audio from devices without the need for cumbersome cords.

Enhancing the sound quality, the receivers are equipped with a powerful built-in amplifier, ensuring that every note is clear and impactful. Advanced equalization settings enable users to fine-tune their audio output to suit their personal preferences and the acoustics of their vehicle.

Another standout technology featured in the DXZ389RGUSB, DXZ389RUSB, and DXZ388RUSB is the dedicated audio processor, which enhances overall sound performance. This technology significantly reduces noise and distortion, providing users with a crisp, high-fidelity listening experience.

Furthermore, these models incorporate customizable multi-color illumination, allowing users to set the display and button colors to match their personal style or the vehicle's interior. This enhances not only functionality but also the aesthetic appeal of the interior.

With a range of features catering to audio enthusiasts and casual listeners alike, alongside their stylish design, the Clarion DXZ389RGUSB, DXZ389RUSB, and DXZ388RUSB models serve as a perfect integration of functionality and modern technology in car audio systems. Whether it’s for long road trips or daily commutes, these receivers promise to elevate the audio experience on the go.