Microcomputer for microphone

A microcomputer for a microphone, comprising:

• an input amplifier that amplifies an analog signal from the microphone;
• an analog-to-digital converter that converts the analog signal output from the input amplifier to a digital signal;
• a digital signal processor that processes the digital signal output from the analog-to-digital converter;
• a digital-to-analog converter that converts the digital signal output from the digital signal processor to an analog signal;
• an output amplifier that amplifies the analog signal output from the digital-to-analog converter and outputs the analog signal to a speaker;
• a program memory that stores a plurality of microphone programs to be executed by the digital signal processor;
• an address control circuit that controls an address of the program memory;
• a program address register that stores an address of the microphone program;
• and
• a program size register that stores a size of the microphone program,
• wherein the address control circuit calculates the address of the program memory based on the program address register and the program size register.