CCIR-468-4
DOLBY
Shape of CCIR Filter - CCIR-468-4 has the 0 dB point at 1 kHz, while the
Dolby curve has the 0 dB point at 2 kHz.
Shape of A-weighting Filter.
E Filter Shapes
Appendix E - Filter Shapes
E-2 Portable One Plus Access User's Manual
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