Panasonic Exploring AAC, MP3, and WMA File Formats for Optimal Playback
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Notes on MP3/WMA/AAC

Notes on MP3/WMA/AAC

Playable Audio File

CQ-RX400U

MP3/WMA/AAC

CQ-RX200U

MP3/WMA

CQ-RX100U

MP3/WMA

CQ-RX100L

MP3/WMA

Notes for AAC playback is only for the model CQ-RX400U.

What is MP3/WMA/AAC?

MP3* (MPEG Audio Layer-3) and WMA (Windows MediaTM Audio) are the compression formats of digital audio. The former is developed by MPEG (Motion Picture Experts Group), and the latter is developed by Microsoft Corporation. Using these compression formats, you can record the contents of about 10 music CDs on a single CD media (This figures refer to data recorded on a 650 MB CD-R or CD-RW at a fixed bit rate of 128 kbps and a sampling frequency of 44.1 kHz).

*MPEG Layer-3 audio coding technology licensed from Fraunhofer.

AAC is an abbreviation for “Advanced Audio Coding”.

It has been defined as a standard for audio compression technology using MPEG 2 and MPEG 4.

Note: MP3/WMA/AAC encoding and writing software is not supplied with this unit.

Points to Remember When Making MP3/

WMA/AAC Files

Common

•High bit rate and high sampling frequency are recommended for high quality sounds.

•Selecting VBR (Variable Bit Rate) is not recommended because playing time is not displayed properly and sound may be skipped.

•The playback sound quality differs depending on the encoding circumstances. For details, refer to the instructions of your own encoding software and writing software.

MP3

•It is recommended to set the bit rate to “128 kbps or more” and “fixed”.

WMA

•It is recommended to set the bit rate to “64 kbps or more” and “fixed”.

•Do not set the copy protect attribute on the WMA file to enable this unit to play back.

AAC

•It is recommended to set the bit rate to “128 kbps or more” and “fixed”.

•The formats and extensions for AAC data vary according to the encoder software used.

•AAC files which can be played on this unit have the “.m4a” extension and were encoded with Apple iTunes® version 7.

•The file extension for files encoded with the iTunes Apple Lossless Encoder is “.m4a”, but such files cannot be played on this player.

•Files under copyright protection cannot be played.

Caution

Never assign the “.mp3”, “.wma” or “.m4a” file name extension to a file that is not in the MP3/ WMA/AAC format. This may not only produce noise from the speaker damage, but also damage your hearing.

iTunes is a trademark of Apple Inc., registered in the U.S. and other countries/regions.

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

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Contents AAC WMA MP3 CD Player/Receiver AccessoriesWMA MP3 CD Player/Receiver RDo not use the unit when it is out of order RUse the proper power supplyRProtect the Deck Mechanism SQ Sound Quality FeaturesUSB Connector AUX AUX1 Input TerminalWarranty Service Accessory PurchasesFeatures Before Reading These InstructionsPanasonic Auto Products Limited Warranty Limited WarrantyPanasonic Product Limited Warranty Fuse Maintenance/FuseAnti-Theft System RemovingDisc Player SpecificationsGeneral FM RadioRInstallation Angle RKeep the sound volume at an appropriate levelObserve the following cautions when installing Case of battery leakageDisc Insert How to hold the discDisc cleaning Do not leave discs in the following placesWMA/AAC Files What is MP3/WMA/AAC?Playable Audio File CommonDisplay Information Media/USB-DeviceCopyright No warranty Maximum number of files/foldersClock Setting Cancellation DemonstrationBattery Installation Clock Display at Power OffQusb Connector Power On/OffVolume Adjustment GeneralRadio AM/FM Station PresetOperation Flow Radio Source Display Audio Settings Mute/Attenuation Function SettingsDemonstration AUX1 SkipSQ Changeover SQ AdjustmentSound Control SQ3 3-Band Sound QualityBattery Replacement Remote Control UnitDirect Access FunctionsGeneral Operations QAUX1 ConnectorQSystem-up Connector AUXTrack/File Selection Player Disc PlayerOperation Flow Folder Selection MP3/WMA/AACPlayer Source Display ScanCommon TroubleshootingError Display Messages Disc Player RadioMemorandum

CQ-RX100U, CQ-RX400U specifications

The Panasonic CQ-RX100U and CQ-RX400U are two of the most notable car audio systems designed to cater to various audio needs while enhancing driving experiences. Both models come equipped with cutting-edge features and technologies that set them apart in the competitive car audio market.

The Panasonic CQ-RX100U is designed for those who value simplicity without compromising sound quality. This model features a CD player capable of playing MP3 files, ensuring users have access to their favorite tunes while on the road. The built-in FM/AM tuner provides a range of over 30 preset stations, allowing drivers to enjoy their preferred radio channels effortlessly. Additionally, the CQ-RX100U boasts a variable loudness control for optimizing sound output to suit different listening environments.

In contrast, the CQ-RX400U takes audio performance to a new level with its advanced features. With a powerful 50 watts per channel output, this model is designed to deliver pristine sound quality that can fill any vehicle. The CQ-RX400U features a USB input that supports high-resolution audio playback, making it compatible with various digital music formats. Additionally, it supports Bluetooth connectivity, enabling smartphone users to stream music seamlessly and make hands-free calls.

Both systems include a 3-band equalizer, allowing users to customize their listening experience by adjusting bass, midrange, and treble settings. Furthermore, the CQ-RX100U and CQ-RX400U are equipped with RCA outputs for connecting external amplifiers, enhancing audio performance for those who seek more robust sound systems.

One of the standout characteristics of both models is their user-friendly interfaces. The bright LED display provides clear visibility of song titles, radio frequencies, and system settings, making it easy to navigate through various functions while driving. The intuitive controls ensure that drivers can change settings without distraction, prioritizing road safety.

In terms of design, both models feature a sleek and modern aesthetic that fits well with most automotive interiors. The durable build quality ensures that these audio systems can withstand the rigors of daily use, providing reliable performance over time.

Overall, the Panasonic CQ-RX100U and CQ-RX400U car audio systems present an impressive blend of features, cutting-edge technology, and user-focused design. Whether you're looking for a straightforward system or one that offers advanced connectivity and sound quality, these models cater to a wide range of audio preferences, making them ideal choices for enhancing your driving experience.
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