Weighting, CCIR 468

Weighting, CCIR 468

This philtre was designed to maximise its response to the types of impulsive noise often coupled into audio cables as they pass through telephone switching facilities. The CCIR 468-curve peaks at 6.3 kHz, where it has 12 dB of gain (relative to 1 kHz). From here, it gently rolls off low frequencies at a 6 dB/octave rate, but it quickly attenuates high frequencies at ~30 dB/octave (it is down –22.5 dB at 20 kHz, relative to +12 dB at 6.3 kHz).

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Industry/Domain: Software
Category: Video editing
Company: Tektronix
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