Compressed audio compatibility 84, Additional information, Compressed audio compatibility – Pioneer AVH-P4000DVD User Manual

Page 84

! Firmly secure the USB portable audio

player/USB memory when driving. Do not
let the USB portable audio player/USB
memory fall onto the floor, where it may be-
come jammed under the brake or accelera-
tor pedal.

! There may be a slight delay when starting

playback of audio files encoded with image
data.

! Depending on the USB devices connected

to this unit, it may generate noise in the
radio.

! Only 22 characters from the beginning can

be displayed as a file name (including the
extension) or a folder name when USB por-
table audio player/USB memory is selected
as a source.

! The text information of some audio files

may not be correctly displayed.

! File extensions must be used properly.

! Up to 15 000 files on a USB portable audio

player/USB memory can be played back.

! Up to 500 folders on a USB portable audio

player/USB memory can be played back.

! Up to eight tiers directory on a USB porta-

ble audio player/USB memory can be
played back.

! There may be a slight delay when starting

playback of audio files on a USB portable
audio player/USB memory with numerous
folder hierarchies.

! Do not connect anything other than the

USB portable audio player/USB memory.

! Operations may vary depending on the

kind of USB audio player and a USB mem-
ory.

The sequence of audio files on USB
memory

For USB portable audio players, the sequence is
different from that of USB memory and de-
pends on the player.

Example of a hierarchy

: Folder

: Compressed audio file

1
2

5
6

Level 1

Level 2

Level 3 Level 4

! 01 to 05 represent assigned folder num-

bers.

1 to 6 represent the playback se-

quence. The user cannot assign folder
numbers and specify the playback se-
quence with this unit.

! Playback sequence of the audio file is the

same as recorded sequence in the USB de-
vice.

! To specify the playback sequence, the fol-

lowing method is recommended.

Create the file name including numbers
that specify the playback sequence (e.g.,
001xxx.mp3 and 099yyy.mp3).

Put those files into a folder.

Record the folder containing files into the
USB device.

However, depending on the system environ-
ment, you cannot specify the file playback
sequence.

Compressed audio compatibility

WMA
! Compatible format: WMA encoded by

Windows Media Player

! Bit rate: 48 kbps to 320 kbps (CBR), 48 kbps

to 384 kbps (VBR)

! Sampling frequency: 32 kHz to 48 kHz

! Windows Media Audio 9 Professional, Loss-

less, Voice: No

Additional Information

Appendix