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When using the MP3/WMA encoder to compress audio
data to an MP3/WMA file, the bit rate and sampling
frequencies in the following table are supported. In
addition, Variable Bit Rates (VBR) are also supported.
The majority of MP3/WMAfiles use a 44.1 kHz sampling
rate and a 192, 160, 128, 96 or VBR bit rates.
MP3 File Format
MPEG
Specification
Sampling Fre-
quency (kHz)
Bit Rate (kbps)
MPEG-1 Audio
Layer 3
48, 44.1, 32
320, 256, 224,
192, 160, 128,
112, 96, 80, 64,
56, 48
MPEG-2 Audio
Layer 3
24, 22.05, 16
160, 128, 144,
112, 96, 80, 64,
56, 48
WMA File Format
WMA
Specification
Sampling Fre-
quency (kHz)
Bit Rate (kbps)
WMA 44.1 and 48
48, 64, 96, 128,
160, 192 VBR
ID3 Tag information for artist, song title, and album title
are supported for ID3 version 1 tags. ID3 version 2 is not
supported by the radios.
Playlist files are not supported. MP3 Pro files are not
supported.
Playback of MP3/WMA Files
When a medium containing MP3/WMA data is loaded,
the radio checks all files on the medium. If the medium
contains a lot of folders or files, the radio will take more
time to start playing the MP3/WMA files.
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