A-law algorithm
An A-law algorithm is a standard companding algorithm, used in European 8-bit PCM digital communications systems to optimize, i.e. modify, the dynamic range of an analog signal for digitizing. It is one of two versions of the G.711 standard from ITU-T, the other version being the similar μ-law, used in North America and Japan. For a given input , the equation for A-law encoding is as follows: where is the compression parameter. In Europe, . A-law expansion is given by the inverse function:
- Comment
- enAn A-law algorithm is a standard companding algorithm, used in European 8-bit PCM digital communications systems to optimize, i.e. modify, the dynamic range of an analog signal for digitizing. It is one of two versions of the G.711 standard from ITU-T, the other version being the similar μ-law, used in North America and Japan. For a given input , the equation for A-law encoding is as follows: where is the compression parameter. In Europe, . A-law expansion is given by the inverse function:
- Depiction
- Filename
- enA-law audio demo.flac
- enLarynx-HiFi-GAN speech sample.wav
- Has abstract
- enAn A-law algorithm is a standard companding algorithm, used in European 8-bit PCM digital communications systems to optimize, i.e. modify, the dynamic range of an analog signal for digitizing. It is one of two versions of the G.711 standard from ITU-T, the other version being the similar μ-law, used in North America and Japan. For a given input , the equation for A-law encoding is as follows: where is the compression parameter. In Europe, . A-law expansion is given by the inverse function: The reason for this encoding is that the wide dynamic range of speech does not lend itself well to efficient linear digital encoding. A-law encoding effectively reduces the dynamic range of the signal, thereby increasing the coding efficiency and resulting in a signal-to-distortion ratio that is superior to that obtained by linear encoding for a given number of bits.
- Header
- enAudio quality comparison
- Is primary topic of
- A-law algorithm
- Label
- enA-law algorithm
- Link from a Wikipage to an external page
- github.com/deftio/companders
- www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a00801149b3.shtml
- Link from a Wikipage to another Wikipage
- Analog signal
- Audio level compression
- Category:Audio codecs
- Channel coding
- Companding
- Digital data
- Distortion
- DS0
- Dynamic range
- Europe
- File:Plot of F(x) for A-Law for A = 87.6.svg
- File:Ulaw alaw db.svg
- G.711
- ITU-T
- PCM
- Signal compression
- Speech communication
- Tapered floating point
- Telecommunication
- Μ-law algorithm
- SameAs
- 2bEET
- A-law
- A-law algorithm
- A-law алгоритам
- A-lawアルゴリズム
- A-закон
- A-закон
- A 법칙 알고리즘
- Ley A
- Loi A
- m.0b4hq
- Q278059
- Thuật toán luật A
- SoundRecording
- A-law algorithm Sound 1
- A-law algorithm Sound 2
- Subject
- Category:Audio codecs
- Thumbnail
- Title
- enA-law
- enOriginal file
- Type
- enmusic
- WasDerivedFrom
- A-law algorithm?oldid=1117094676&ns=0
- WikiPageLength
- 2773
- Wikipage page ID
- 40707
- Wikipage revision ID
- 1117094676
- WikiPageUsesTemplate
- Template:Compression Methods
- Template:Listen
- Template:No footnotes
- Template:Short description
