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[Other resource] lectidsp DL : 0: The line echo canceller (LEC) is designed to provide the maximum attainable transparent voice quality for de-echoing of a PSTN or POTS connection in voice-over-LAN systems with internal delays, or on a codec end of a telecom switch,基于TI 54X/55X平台
Update : 2008-10-13 Size : 149.92kb Publisher : 邓建军
[DSP program] lectidsp DL : 0: The line echo canceller (LEC) is designed to provide the maximum attainable transparent voice quality for de-echoing of a PSTN or POTS connection in voice-over-LAN systems with internal delays, or on a codec end of a telecom switch,基于TI 54X/55X平台-The line echo canceller (LEC) is designed to provide the maximum attainable transparent voice quality forde-echoing of a PSTN or POTS connection in voice-over-LAN systems with internal delays, or on a codec end of a telecom switch, based on the TI 54X/55X platform
Update : 2025-02-17 Size : 150kb Publisher : 邓建军
[AI-NN-PR] 444C_Coman_Alexandru DL : 0: Echoes occur in telephone networks because of impedance mismatches of network elements and electro-acoustical coupling within voice terminals (telephone sets). A line/network echo canceller controls/cancels echoes caused by impedance mismatches
Update : 2025-02-17 Size : 230kb Publisher : Alex
[matlab] 443C_Simion_Alexandru DL : 0: The (a) section of Figure 1 illustrates the Line Echo Canceller (LEC) residing in the access network where echoes occur. Other voice processing modules, such as Automatic Level Control (ALC) and Noise Reduction (NR), are shown merely for illustration purposes. On the terminal side, both acoustic and electrical echo can occur. If the voice terminal is a speaker telephone set with an open acoustical path from the speaker to the microphone, the effect of acoustical echo is combined with the effect of the network echo. Because there is only a miniscule delay between the electrical signal and its echo, the speaker/listener is exposed to an effect known as side tone. Typically, instead of mounting a LEC at the terminal, side tone circuitry is placed to control the amount of the returned energy. The (b) section of Figure 1 shows examples of echo canceller signals representing the following:
Update : 2025-02-17 Size : 165kb Publisher : Alex
[Linux-Unix] echo DL : 0: A line echo canceller. This code is being developed driver for Linux. against and partially complies with G168 driver for Linux.-A line echo canceller. This code is being developed driver for Linux. against and partially complies with G168 driver for Linux.
Update : 2025-02-17 Size : 10kb Publisher : sdsiope
[Linux-Unix] oslec DL : 0: OSLEC - A line echo canceller. This code is being developed against and partially complies with G168. Using code SpanDSP. -OSLEC - A line echo canceller. This code is being developed against and partially complies with G168. Using code SpanDSP.
Update : 2025-02-17 Size : 1kb Publisher : ypjailui
[Linux-Unix] oslec DL : 0: OSLEC - A line echo canceller. This code is being developed against and partially complies with G168. Using code SpanDSP. -OSLEC - A line echo canceller. This code is being developed against and partially complies with G168. Using code SpanDSP.
Update : 2025-02-17 Size : 1kb Publisher : qfjspg