2019 TOYOTA PRIUS C Accessories, Audio & Navigation (in English)

121
6. TIPS FOR OPERATING THE AUDIO SYSTEM
Prius_C_Navi_U
AUDIO SYSTEM
3
■CORRESPONDING SAMPLING
FREQUENCY
■CORRESPONDING BIT RATES*1
■COMPATIBLE CHANNEL MODES
MP3 (MPEG Audio Layer 3), WMA
(Windows Media Audio) and AAC
(Advanced Audio Coding) are audio com-
pression standards.
 This system can play MP3/WMA/AAC files
on CD-R/CD-RW discs and USB memory.
 This system can play disc recordings com-
patible with ISO 9660 level 1 and level 2
and with the Romeo and Joliet file system
and UDF (2.01 or lower).
 When naming an MP3/WMA/AAC file, add
an appropriate file extension (.mp3/.wma/
.m4a).
 This system plays back files with .mp3/
.wma/.m4a file extensions as MP3/WMA/
AAC files respectively. To prevent noise
and playback errors, use the appropriate
file extension.
 This system can play only the first ses-
sion/border when using multi-session/bor-
der compatible discs.
 MP3 files are compatible with the ID3 Tag
Ver. 1.0, Ver. 1.1, Ver. 2.2 and Ver. 2.3 for-
mats. This system cannot display disc
title, track title and artist name in other for-
mats.
 WMA/AAC files can contain a WMA/AAC
tag that is used in the same way as an ID3
tag. WMA/AAC tags carry information
such as track title and artist name.
 The emphasis function is available only
when playing MP3 files.
 This system can play back AAC files
encoded by iTunes.
File typeFrequency (kHz)
MP3 files:
MPEG 1 LAYER 332/44.1/48
MP3 files:
MPEG 2 LSF LAYER 316/22.05/24
WMA files:
Ver. 7, 8, 9* (9.1/9.2)32/44.1/48
AAC files:
MPEG4/AAC-LC11.025/12/16/
22.05/24/32/
44.1/48
*: Only compatible with Windows Media Au-
dio Standard
File typeBit rate (kbps)
MP3 files:
MPEG 1 LAYER 332 - 320
MP3 files:
MPEG 2 LSF LAYER 38 - 160
WMA files: Ver. 7, 8CBR 48 - 192
WMA files:
Ver. 9*2 (9.1/9.2)CBR 48 - 320
AAC files:
MPEG4/AAC-LC16 - 320
*1: Variable Bit Rate (VBR) compatible
*2: Only compatible with Windows Media Audio Standard
File typeChannel mode
MP3 filesStereo, joint stereo, dual
channel and monaural
WMA files2ch
AAC files1ch, 2ch (Dual channel is not
supported)

122
6. TIPS FOR OPERATING THE AUDIO SYSTEM
Prius_C_Navi_U
The sound quality of MP3/WMA files gen-
erally improves with higher bit rates. In
order to achieve a reasonable level of
sound quality, discs recorded with a bit
rate of at least 128 kbps are recom-
mended.
 m3u playlists are not compatible with the
audio player.
 MP3i (MP3 interactive) and MP3PRO for-
mats are not compatible with the audio
player.
 The player is compatible with VBR (Vari-
able Bit Rate).
 When playing back files recorded as VBR
(Variable Bit Rate) files, the play time will
not be correctly displayed if the fast for-
ward or reverse operations are used.
 It is not possible to check folders that do
not include MP3/WMA/AAC files.
 MP3/WMA/AAC files in folders up to 8 lev-
els deep can be played. However, the
start of playback may be delayed when
using discs containing numerous levels of
folders. For this reason, we recommend
creating discs with no more than 2 levels
of folders. 
The play order of the compact disc with
the structure shown above is as follows:
 The order changes depending on the per-
sonal computer and MP3/WMA/AAC
encoding software you use.
001.mp3
002.wma
Folder 1
003.mp3Folder 2
004.mp3
005.wma Folder 3
006.m4a
001.mp3 002.wma . . . 006.m4a

123
6. TIPS FOR OPERATING THE AUDIO SYSTEM
Prius_C_Navi_U
AUDIO SYSTEM
3
This is a general term that describes the
process of writing data on-demand to CD-
R, etc., in the same way that data is writ-
ten to floppy or hard discs.
 This is a method of embedding track-
related information in an MP3 file. This
embedded information can include the
track number, track title, the artist’s name,
the album title, the music genre, the year
of production, comments, cover art and
other data. The contents can be freely
edited using software with ID3 tag editing
functions. Although the tags are restricted
to a number of characters, the information
can be viewed when the track is played
back.
 WMA files can contain a WMA tag that is
used in the same way as an ID3 tag. WMA
tags carry information such as track title
and artist name.
 This is the international standard for the
formatting of CD-ROM folders and files.
For the ISO 9660 format, there are 2 lev-
els of regulations.
 Level 1: The file name is in 8.3 format (8
character file names, with a 3 character
file extension. File names must be com-
posed of one-byte capital letters and num-
bers. The “_” symbol may also be
included.)
 Level 2: The file name can have up to 31
characters (including the separation mark
“.” and file extension). Each folder must
contain fewer than 8 hierarchies. 
Playlists created using “WINAMP” soft-
ware have a playlist file extension (.m3u).
 MP3 is an audio compression standard
determined by a working group (MPEG) of
the ISO (International Standard Organiza-
tion). MP3 compresses audio data to
about 1/10 the size of that on conventional
discs.
 WMA (Windows Media Audio) is an audio
compression format developed by
Microsoft
®. It compresses files into a size
smaller than that of MP3 files. The decod-
ing formats for WMA files are Ver. 7, 8 and
9.
 This product is protected by certain intel-
lectual property rights of Microsoft Corpo-
ration and third parties. Use or distribution
of such technology outside of this product
is prohibited without a license from Micro-
soft or an authorized Microsoft subsidiary
and third parties.
 AAC is short for Advanced Audio Coding
and refers to an audio compression tech-
nology standard used with MPEG2 and
MPEG4.
TERMS
PACKET WRITE
ID3 TAG
WMA TAG
ISO 9660 FORMAT
m3u
MP3
WMA
AAC

124
6. TIPS FOR OPERATING THE AUDIO SYSTEM
Prius_C_Navi_U
ERROR MESSAGES
ModeMessageExplanation
CD
“No music files found.”This indicates that no MP3/WMA/AAC files are
included in the disc.
“Check Disc”
It indicates that the disc is dirty, damaged, or it
was inserted upside down. Clean the disc or in-
sert it correctly.
It indicates a disc which is not playable is insert-
ed.
“Disc Error”There is a trouble inside the system.
Eject the disc.
USB
“Connection error. Please
consult your Owner’s
Manual for instructions on
how to connect the USB
device.”
This indicates a problem in the USB memory or
its connection.
“There are no files avail-
able for playback. Please
add compatible files to
your USB device.”
This indicates that no MP3/WMA/AAC files are
included in the USB memory.
iPod
“Connection error. Please
consult your Owner’s
Manual for instructions on
how to connect the iPod.”This indicates a problem in the iPod or its con-
nection.
“There are no songs avail-
able for playback. Please
add compatible files to
your iPod.”
This indicates that there is no music data in the
iPod.
“No videos found.”This indicates that no video files are included in
the iPod.
“iPod authorization unsuc-
cessful.”This indicates that it failed to authorize the iPod.
Please check your iPod.
INFORMATION
●If the malfunction is not rectified: Take your vehicle to your Toyota dealer.

4
125
Prius_C_Navi_U
5
6
7
8
9
1
2
3
41. VOICE COMMANDSYSTEM .......... ....................... ... 126
USING THE VOICE COMMAND
SYSTEM ............................................ 126
VOICE COMMAND SYSTEM OPERATION ..................................... 127
2. CASUAL SPEECH RECOGNIZATION..................... 132
3. COMMAND LIST ......................... 133
1. MOBILE ASSISTANT.................. 135
1VOICE COMMAND SYSTEM
OPERATION
2MOBILE ASSISTANT
OPERATION
VOICE COMMAND SYSTEM

126
Prius_C_Navi_U
1. VOICE COMMAND SYSTEM OPERATION
1. VOICE COMMAND SYSTEM
Talk switch
Press the talk switch to start the voice
command system.
 To cancel voice recognition, press and
hold the talk switch.
Vehicles without moon roof
 Vehicles with moon roof
 It is unnecessary to speak directly into the
microphone when giving a command.
The voice command system enables
the audio, hands-free systems, etc. to
be operated using voice commands.
Refer to the command list for samples
of voice commands. ( P.133)
USING THE VOICE
COMMAND SYSTEM
STEERING SWITCH
MICROPHONE

127
1. VOICE COMMAND SYSTEM OPERATION
Prius_C_Navi_U
VOICE COMMAND SYSTEM
4
1Press the talk switch.
2Select “OK” or press the talk switch.
For details about this screen: P.128
3Say the tab selection command or se-
lect the desired tab.
 Commands related with each function are
displayed on the screen of the each func-
tion tab. Some commonly used com-
mands are displayed on the screen of the
function tab.
INFORMATION
● The voice command system can be
operated while guidance is being spo-
ken, when “Voice Prompt Interrupt”
( P.58) is set to on. (It is not necessary
to wait for the confirmation beep before
speaking a command.)
● Voice commands may not be recognized
if:
• Spoken too quickly.
• Spoken at a low or high volume.
• The roof or windows are open.
• Passengers are talking while voice
commands are spoken.
• The air conditioning speed is set high.
• The air conditioning vents are turned towards the microphone.
● In the following conditions, the system
may not recognize the command prop-
erly and using voice commands may not
be possible:
• The command is incorrect or unclear.
Note that certain words, accents or
speech patterns may be difficult for the
system to recognize.
• There is excessive background noise, such as wind noise.
VOICE COMMAND SYSTEM
OPERATION
The voice command system is operat-
ed by speaking commands corre-
sponding to each function. Also you
can confirm the each command by se-
lecting a tab.
The tabs are found on the upper part of
the screen.
 Selecting “Help” or saying “Help”
prompts voice guidance to offer exam-
ples of commands and operation meth-
ods.

128
1. VOICE COMMAND SYSTEM OPERATION
Prius_C_Navi_U
4Say the command displayed on the
screen.
Registered POIs, registered names in the
contacts list etc., can be said in the place
of the “<>” next to the commands.
( P.133)
For example: Say “Find nearby dining” ,
“Call John smith” etc.
 If a desired outcome is not shown, or if no
selections are available, perform one of
the following to return to the previous
screen:
•Say “Go back” .
•Select “Go Back” .
 To cancel voice recognition, select
“Can-
cel”
, or press and hold the talk switch.
■DISPLAYING THE “Voice Settings”
SCREENS
 Selecting “Voice Settings” can be dis-
played the “Voice Settings” screen.
( P. 5 8 )
1Press the talk switch.
2Select the desired item to be set.
INFORMATION
●If the system does not respond or the
confirmation screen does not disappear,
press the talk switch and try again.
● “Voice Recognition Prompts” can be set
on the “Voice Settings” screen. ( P. 5 8 )
● Some voice guidance can be canceled
by setting voice prompts to off. Use this
setting when it is desirable to say a com-
mand immediately after pressing the talk
switch and hearing a beep.
INCREASING THE VOICE
RECOGNITION
PERFORMANCE
No.Function
Select to train voice recognition.
The user will be asked to say 10
sample phrases. This will help the
voice command system adapt to the
user’s accent.
Select to display the voice recogni-
tion tutorial.
Select to prevent the screen from
being displayed again.
Select to continue the voice recogni-
tion.