![]() ![]() Variable capacitor C17 regulates the delay time in the circuit. ![]() Since IC4 MN3101 is a clocking signal, it provides timing to IC5 as it functions as an oscillator in the circuit. This will incorporate op-amp sound delay signal IC5 MN3004 which has 512 stages. This would lead to the creation of proper sense of spacing in accordance to the size of the room. The output of IC2D will power regulated delay unit of audio to the rear loudspeakers. It is necessary to ensure that the negative terminals between the rear speaker is not earthed because they will simply function in parallel with the main speakers. IC2C is responsible for summing up the signals from the left and right channels that will power the central loudspeaker output while IC2D is responsible for increasing the phase difference between left and right channels which is encoded in the two channels and will be fed to the rear loudspeakers. The outputs on these operational amplifiers would serve as the input buffer to the following stages of the circuit. This will drive the Left channel Lch attached to Model TL072 IC1A and IC1b in which Right channel Rch is attached. The operation of the above circuits starts as the stereo sound signal transports surround sound information on the master volume part of the circuit. Skema Rangkaian Audio Surround sound Decoder ![]()
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