Tone quality processor based on room impulse response measurement

Abstract

The invention relates to a tone quality processor based on room impulse response measurement. The tone quality processor includes a core processor, a plurality of digital signal processing sub-circuits are arranged in the core processor; the digital signal processing sub-circuit comprises a system configuration parameter loading sub-circuit, a user-defined swept-frequency signal generating and sending sub-circuit, a multi-channel signal clustering and merging sub-circuit, a system pulse response calculation sub-circuit, a real-time sound pressure level monitoring sub-circuit, a listening sensecompensation effect preset sub-circuit, a target pulse response design sub-circuit, an equalization inverse pulse generation sub-circuit, a virtual pulse response synthesis sub-circuit, a single-channel real-time convolution sub-circuit, a sound box-listening point distribution matrix sub-circuit and an input / output distribution matrix sub-circuit. Self-adaptive tone quality balance and sound field effect compensation of different sound field systems are realized, so that great convenience is brought to a sound equipment engineering debugging process and flexible control of a user on sound field control.

Description

technical field [0001] The invention relates to the technical field of audio processing, in particular to a sound quality processor based on room impulse response measurement. Background technique [0002] Whether in the field of professional audio or consumer audio, more and more digital audio processors play an increasingly important role in the improvement of the playback sound quality of the audio system and the presentation of various hearing effects. The traditional method of improving the playback sound quality by improving the material, structure and process of the audio equipment itself is restricted by many objective factors. With the wide application of digital signal processing technology in the audio field and the advantages of DSP development costs, through It has become an inevitable trend to use signal processing methods to compensate and regulate the sound quality of the audio system. [0003] The existing sound quality processor products can be roughly div...

AI Technical Summary

Problems solved by technology

The adjustable frequency accuracy of this method is limited, and engineers need to adjust it according to the empirical estimation of the current environmental sound field characteristics, which lacks certain accuracy and standardization

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