VS1033 - MP3/AAC/WMA/MIDI AUDIO CODEC - VLSI Solution
VS1033 - MP3/AAC/WMA/MIDI AUDIO CODEC - VLSI Solution
VS1033 - MP3/AAC/WMA/MIDI AUDIO CODEC - VLSI Solution
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<strong>VLSI</strong><strong>Solution</strong> y<strong>VS1033</strong>c<strong>VS1033</strong>C8. FUNCTIONAL DESCRIPTION8.2.5 Supported <strong>WMA</strong> FormatsWindows Media Audio codec versions 2, 7, 8, and 9 are supported. All <strong>WMA</strong> profiles (L1, L2, and L3)are supported. Previously streams were separated into Classes 1, 2a, 2b, and 3. The decoder has passedMicrosoft’s conformance testing program.<strong>WMA</strong> 4.0 / 4.1:SamplerateBitrate / kbit/s/ Hz 5 6 8 10 12 16 20 22 32 40 48 64 80 96 128 160 192<strong>WMA</strong> 7:8000 + + + +11025 + +16000 + + + +22050 + + + +32000 + + + + + +44100 + + + + + + +48000 + +SamplerateBitrate / kbit/s/ Hz 5 6 8 10 12 16 20 22 32 40 48 64 80 96 128 160 192<strong>WMA</strong> 8:8000 + + + +11025 + +16000 + + + +22050 + + + +32000 + + + +44100 + + + + + + + +48000 + +SamplerateBitrate / kbit/s/ Hz 5 6 8 10 12 16 20 22 32 40 48 64 80 96 128 160 192<strong>WMA</strong> 9:8000 + + + +11025 + +16000 + + + +22050 + + + +32000 + + + +44100 + + + + + + + +48000 + + +SamplerateBitrate / kbit/s/ Hz 5 6 8 10 12 16 20 22 32 40 48 64 80 96 128 160 192 256 3208000 + + + +11025 + +16000 + + + +22050 + + + +32000 + + + +44100 + + + + + + + + + + +48000 + + + + +In addition to these expected <strong>WMA</strong> decoding profiles, all other bitrate and samplerate combinations aresupported, including variable bitrate <strong>WMA</strong> streams. Note that <strong>WMA</strong> does not consume the bitstream asevenly as <strong>MP3</strong>, so you need a higher peak transfer capability for clean playback at the same bitrate.Version 1.00, 2008-02-01 28
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