Audio quality improvement method and system based on frequency compensation and talkback equipment

The invention provides an audio quality improvement method and system based on frequency compensation and intercom equipment. The method comprises the following steps: acquiring to-be-tested audio data of the equipment; fFT is applied to audio data to be measured, the audio data are converted into energy values, the average energy value is calculated, the energy value points are averagely divided into a plurality of segments, the gain value corresponding to each segment is calculated through the average energy value and the median of each segment, smooth filtering processing is carried out on each gain value, and compensation parameters corresponding to each segment are output; the method comprises the following steps: acquiring an input voice signal to be compensated, framing the voice signal, converting the voice signal from a time domain to a frequency domain by using FFT (Fast Fourier Transform), compensating data of each frequency band by using a filter according to compensation parameters required by ea