03-04-2017, 12:18 PM
Hi this is Bonita .I request you to please send me the c program code for noise cancellation system using lms algorithm
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active noise cancellation code with code compressor studio
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Hi this is Bonita .I request you to please send me the c program code for noise cancellation system using lms algorithm
15-04-2017, 03:05 PM
Active Noise Cancellation (ANC) is a method to reduce unwanted noise. ANC is achieved by introducing an "antinoise" wave override through secondary sources. These secondary sources are interconnected through an electronic system using a signal processing algorithm specific to the particular cancellation scheme. Our project is to build a noise-canceling headset through active noise control. Essentially, this involves the use of a microphone, placed near the ear, and electronic circuitry that generates an "antinoise" sound wave with the opposite polarity of the sound wave arriving at the microphone. This results in destructive interference, which cancels the noise within the closed volume of the handset. This report will demonstrate the approaches we take to address the effects of noise cancellation, along with comparing results.
Noise cancellation makes use of the notion of destructive interference. When two sine waves overlap, the resulting waveform depends on the frequency amplitude and the relative phase of the two waves. If the original wave and the inverse of the original wave are found in a junction at the same time, total cancellation occurs. The challenges are to identify the original signal and to generate the inverse without delay in all directions where the noises interact and overlap.
Noise cancellation makes use of the notion of destructive interference. When two sine waves overlap, the resulting waveform depends on the frequency amplitude and the relative phase of the two waves. If the original wave and the inverse of the original wave are found in a junction at the same time, total cancellation occurs. The challenges are to identify the original signal and to generate the inverse without delay in all directions where the noises interact and overlap.
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