Self-adaptive detection method for synchronism of lamplight/motor and sound

Abstract

The invention relates to a self-adaptive detection method for synchronism of a lamplight / motor and sound. The self-adaptive detection method comprises the following steps: detecting a phonetic acoustic signal by an ADC (analog to digital converter) controlled by AGC (automatic gain control); outputting a narrow dynamic range phonetic signal with AGC information; restoring the narrow dynamic range phonetic signal with the AGC information into a wide dynamic range phonetic signal by an energy normalization algorithm; carrying out phonetic real-time energy calculation and threshold calculation by the restored phonetic signal; and through comparison of the real-time energy and the threshold, calculating a motor starting and stopping state or a lamplight turning on and off state corresponding to the current phonetic frame. Through the introduction of the AGC information, high dynamic range obtained on the ADC with low sampling depth is detected by the motor opening and closing state or the lamplight turning on and off state information; and with the adoption of the ADC with 12 bit low sampling depth, the motor opening and closing state or lamplight turn on and off state when users speak can be detected at the distance of 5-300cm, so that the overall cost of the system is greatly reduced.

Description

technical field [0001] The invention relates to an adaptive detection method for synchronizing lights or motors with sound, and belongs to the technical field of digital signal processing. Background technique [0002] At present, the adaptation of mouth movement and sound, lighting effect and sound on traditional toys is achieved through manual labeling, which has great limitations: each audio needs to be manually marked, The final effect is closely related to the proficiency of the labeling personnel; automatic detection and synchronization cannot be realized for the content copied by the user; only fixed audio can be synchronized, and the sound from the external audio source cannot be detected and synchronized. Contents of the invention [0003] The technical problem of the present invention is to overcome the deficiencies of the prior art, provide an acousto-optic, acousto-electric synchronous detection method, realize automatic acousto-optic, acousto-electric detectio...

AI Technical Summary

Problems solved by technology

[0002] At present, the adaptation of mouth movement and sound, lighting effect and sound on traditional toys is achieved through manual labeling, which has great limitations: each audio needs to be manually marked, The final effect is closely related to the proficiency of the labeling personnel; the automatic detection and synchronization of the content copied by the user cannot be realized; only the fixed audio can be synchronized, and the sound from the external audio source cannot be detected and synchronized

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