Data Sheet

PRELIMINARY
VS1063a Datasheet
8 SUPPORTED AUDIO FORMATS
8.2.2 Supported Ogg Vorbis Encoding Formats
The Ogg Vorbis Encoder supports encoding in mono and stereo, with any samplerate between
1 and 48000 Hz, and with different quality settings. Ogg Vorbis is always encoded using variable
bitrate (VBR).
Some example setting profiles are provided below. Note, however, that the encoder is not
limited to these configurations.
The “Voice” profiles are intended for speech applications.
Voice: 8000 Hz mono
Quality setting 0 1 2 3 4 5 6 7 8 9 10
Typical kbit/s 6 7 9 10 12 13 16 19 22 25 28
“Wideband Voice” is intended to be used when high speech quality is required.
Wideband Voice: 16000 Hz mono
Quality setting 0 1 2 3 4 5 6 7 8 9 10
Typical kbit/s 7 11 14 18 21 25 31 37 43 49 55
“Wideband Stereo Voice” is intended to be used when high speech quality with directional
information is required.
Wideband Stereo Voice: 16000 Hz stereo
Quality setting 0 1 2 3 4 5 6 7 8 9 10
Typical kbit/s 10 18 26 34 42 50 65 81 96 112 127
When extremely high quality speech is required, use the “HiFi Voice” profiles.
HiFi Voice, 48000 Hz mono
Quality setting 0 1 2 3 4 5 6 7 8 9 10
Typical kbit/s 37 47 57 68 78 88 99 110 122 133 144
The “Music” profiles are intended for HiFi music.
HiFi Voice, 48000 Hz stereo
Quality setting 0 1 2 3 4 5 6 7 8 9 10
Typical kbit/s 53 72 91 110 129 148 185 222 259 296 333
8.2.3 Supported RIFF WAV Encoding Formats
The following RIFF WAV formats are supported in encoding and codec modes with one or two
channels and samplerates upto XT ALI/256 (48 kHz with 12.288 MHz clock).
Format Name Comments
0x01 PCM 16 and 8 bits linear PCM
0x06 ALAW A-law, non-linear-quantized 8-bit samples
0x07 MULAW µ-law, non-linear-quantized 8-bit samples
0x11 IMA_ADPCM IMA ADPCM, 4 bits per sample, 505 samples per block
0x28f ADPCM_G722 G722 subband ADPCM, two samples in 8 bits
Version: 0.42, 2011-11-24 32