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In addition to improving subjective audio quality, echo suppression increases the capacity achieved through silence suppression by preventing echo from traveling across a telecommunications network. Echo suppressors were developed in the 1950s in response to the first use of satellites for telecommunications.
Avance Logic was acquired by Realtek as early as 1995 and was an independent subsidiary until the end of 2002, when the company was integrated into Realtek. Realtek's Audio Solutions are based on Avance Logic technology, which can also be recognized by the prefixes "ALG" (Avance Logic Graphics) and "ALS" (Avance Logic Sound).
AC'97 (Audio Codec '97; also MC'97 for Modem Codec '97) is an audio codec standard developed by Intel Architecture Labs and various codec manufacturers in 1997. The standard was used in motherboards, modems, and sound cards.
Analog line-level audio output for surround speakers, typically rear stereo Output 3.5 mm minijack Silver/Grey 422 C Analog line level audio output for surround optional side channels Output 3.5 mm minijack Brown/Dark 4645 C Analog line level audio output for a special panning, 'Right-to-left speaker' Output 3.5 mm minijack Gold/Grey
[citation needed] After the discontinuation of SoundStorm, codec chips such as the Realtek 850 have become standard integrated audio solutions, with audio processing functions offloaded onto the host processor. As such, the quality of the device drivers is important to ensure reasonably low host processor usage, without audio quality issues.
LDAC is an alternative to Bluetooth SIG's SBC codec. Its main competitors are Huawei's L2HC, Qualcomm's aptX-HD/aptX Adaptive and the HWA Union/Savitech's LHDC. [1]LDAC utilizes a type of lossy compression [2] [3] by employing a hybrid coding scheme based on the modified discrete cosine transform [4] and Huffman coding [5] to provide more efficient data compression.
Intel High Definition Audio (IHDA) (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers. It was released by Intel in 2004 as the successor to their AC'97 PC audio standard.
The motivation for audio signal processing began at the beginning of the 20th century with inventions like the telephone, phonograph, and radio that allowed for the transmission and storage of audio signals. Audio processing was necessary for early radio broadcasting, as there were many problems with studio-to-transmitter links. [1]