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SC2313 - Loudness control with digital stereo audio processor
SM9613 - 4-channel digital audio processing chip loudness control
MS6714 - Loudness and Selectable Input Gain
SM9614 - 4 digital inputs with loudness control audio processing chip
LC7535M - Electronic Volume/Loudness Control
MSS0317 - Variable pitch variable loudness 3 Voice ROM
MSS0617 - Variable pitch variable loudness 6 Voice ROM
