Log area ratios (LAR) can be used to represent reflection coefficients (another form for linear prediction coefficients) for transmission over a channel. While not as efficient as line spectral pairs (LSPs), log area ratios are much simpler to compute. Let be the kth reflection coefficient of a filter, the kth LAR is:
Use of Log Area Ratios have now been mostly replaced by Line Spectral Pairs, but older codecs, such as GSM-FR use LARs.
See also
References
Data compression methods
Lossless | Entropy type | |
---|
Dictionary type | |
---|
Other types | |
---|
Hybrid | - LZ77 + Huffman
- LZ77 + ANS
- LZ77 + Huffman + ANS
- LZ77 + Huffman + context
- LZSS + Huffman
- LZ77 + Range
- RLE + BWT + MTF + Huffman
|
---|
|
---|
Lossy | |
---|
Audio | |
---|
Image | |
---|
Video | |
---|
Theory | |
---|
Community | |
---|
People | |
---|
- Compression formats
- Compression software (codecs)
|
| This computing article is a stub. You can help Wikipedia by expanding it. |