2014 TOYOTA PRIUS C Audio system

280 3-2. Using the audio system
■USB memory
●Compatible devices
USB memory that can be used for MP3 and WMA playback
● Compatible device formats
The following device formats can be used:
• USB communication formats: USB2.0 FS (12 Mbps)
• File formats: FAT12/16/32 (Windows)
• Correspondence class: Mass storage class
MP3 and WMA files written in any format other than those listed above
may not play correctly, and their file names and folder names may not be
displayed correctly.
Items related to standards and limitations are as follows:
• Maximum directory hierarchy: 8 levels
• Maximum number of folders in a device: 999 (including the root)
• Maximum number of files in a device: 9999
• Maximum number of files per folder: 255
● MP3 and WMA files
MP3 (MPEG Audio LAYER 3) is a standard audio compression format.
Files can be compressed to approximately 1/10 of their original size usi\
ng
MP3 compression.
WMA (Windows Media Audio) is a Microsoft audio compression format.
This format compresses audio data to a size smaller than that of the MP3
format.
There is a limit to the MP3 and WMA file standards that can be used and
to the media/formats on which the files are recorded.

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Interior features
●
MP3 file compatibility
• Compatible standards
MP3 (MPEG1 AUDIO LAYERIII, MPEG2 AUDIO LAYERIII, MPEG2.5)
• Compatible sampling frequencies MPEG1 AUDIO LAYERII, III: 32, 44.1, 48 (kHz)
MPEG2 AUDIO LAYERII, III: 16, 22.05, 24 (kHz)
MPEG2.5: 8, 11.025, 12 (kHz)
• Compatible bit rates (compatible with VBR) MPEG1 AUDIO LAYERII, III: 32-320 (kbps)
MPEG2 AUDIO LAYERII, III: 32-160 (kbps)
MPEG2.5: 8-160 (kbps)
• Compatible channel modes: stereo, joint stereo, dual channel and monaural
● WMA file compatibility
• Compatible standards
WMA Ver. 7, 8, 9
• Compatible sampling frequencies HIGH PROFILE 32, 44.1, 48 (kHz)
• Compatible bit rates HIGH PROFILE 48-320 (kbps, CBR)
● File names
The only files that can be recognized as MP3/WMA and played are those
with the extension .mp3 or .wma.
● ID3 and WMA tags
ID3 tags can be added to MP3 files, making it possible to record the track
title, artist name, etc.
The system is compatible with ID3 Ver. 1.0, 1.1, and Ver. 2.2, 2.3, 2.4 ID3
tags. (The number of characters is based on ID3 Ver. 1.0 and 1.1.)
WMA tags can be added to WMA files, making it possible to record the
track title and artist name in the same way as with ID3 tags.

282 3-2. Using the audio system
●MP3 and WMA playback
• When a device containing MP3 or WMA files is connected, all files in
the USB memory are checked. Once the file check is finished, the first
MP3 or WMA file is played. To make the file check finish more quickly,
we recommend that you do not include any files other than MP3 or
WMA files or create any unnecessary folders.
• When the USB memory is connected and the audio source is changed to USB memory mode, the USB memory will start playing the first file in
the first folder. If the same device is removed and reinserted (and the
contents have not been changed), the USB memory will resume play
from the same point in which it was last used.
● Extensions
If the file extensions .mp3 and .wma are used for files other than MP3 and
WMA files, they will be skipped (not played).
● Playback
• To play MP3 files with steady sound quality, we recommend a fixed bit
rate of at least 128 kbps and a sampling frequency of 44.1 kHz.
• There is a wide variety of freeware and other encoding software for MP3 and WMA files on the market, and depending on the status of the
encoding and the file format, poor sound quality or noise at the start of
playback may result. In some cases, playback may not be possible at
all.
• Microsoft, Windows, and Windows Media are registered trademarks of Microsoft Corporation in the U.S.A. and other countries.
CAUTION
■ Caution while driving
Do not connect USB memory or operate the controls.

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Interior features
NOTICE
■
Cord hook ( P. 275)
■ To prevent damage to USB memory
●Do not leave USB memory in the vehicle. The temperature inside the vehi-
cle may become high, resulting in damage to the player.
● Do not push down on or apply unnecessary pressure to the USB memory
while it is connected as this may damage the USB memory or its terminal.
● Do not insert foreign objects into the port as this may damage the USB
memory or its terminal.

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3-2. Using the audio system
Optimal use of the audio system
Displays the current mode
Changes the following set-
tings
• Sound quality and vol-ume balance ( P. 285)
The sound quality and bal-
ance setting can be
changed to produce the
best sound.
• Automatic Sound Level-
izer on/off ( P. 286)
Selecting the mode

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3-2. Using the audio system
3
Interior features
Using the audio control function
■ Changing sound quality modes
Press .
Turn to select “Sound Setting”.
Press .
Turn to select the desired mode.
“BASS”, “TREBLE”, “FADER”, “BALANCE”, or “ASL”
Press .
■ Adjusting sound quality
Turning adjusts the level.
*: The sound quality level is adjusted individually in each audio mode.
STEP1
STEP2
STEP3
STEP4
STEP5
Mode
displayedSound
quality modeLevelTurn to the leftTurn to the right
“BASS”Bass*-5 to 5LowHigh“TREBLE”Treble*-5 to 5
“FADER”
Front/rear volume
balance
R7 to F7Shifts to rearShifts to front
“BALANCE”
Left/right volume
balance
L7 to R7Shifts to leftShifts to right

286 3-2. Using the audio system
■Adjusting the Automatic Sound Levelizer (ASL)
When ASL is selected, turning to the right changes the
amount of ASL in the order of “LOW”, “MID” and “HIGH”.
Turning to the left turns ASL off.
ASL automatically adjusts the volume and tone quality according to vehi-
cle speed.

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Interior features
Using the AUX port
■Operating portable audio devices connected to the audio system
The volume can be adjusted using the vehicle’s audio controls. All other
adjustments must be made on the portable audio device itself.
■ When using a portable audio devi ce connected to the power outlet
Noise may occur during playback. Use the power source of the portable
audio device.
This port can be used to connect a portable audio device and listen
to it through the vehicle’s speakers.
Open the cover and connect
the portable audio device.
Press until “AUX” is displayed.STEP1
STEP2