Speech enhancement method, device and system and computer readable storage medium

Abstract

The invention discloses a speech enhancement method, device and system and a computer readable storage medium. The method comprises the following steps: acquiring a time-domain microphone signal and a time-domain bone conduction signal at the current moment; judging whether the time-domain microphone signal and the time-domain bone conduction signal are voice signals or not, if so, performing noise elimination processing on the time-domain microphone signal through a pre-established DNN noise elimination model, and performing frequency-domain noise elimination processing on the time-domain bone conduction signal; if not, setting the output signal corresponding to the current moment to be zero; performing high-pass filtering processing on the time-domain microphone signal after noise elimination to obtain a first output time-domain signal, and performing low-pass filtering processing on the time-domain bone conduction signal after noise elimination to obtain a second output time-domain signal; obtaining an output time-domain signal corresponding to the current moment according to the first output time-domain signal and the second output time-domain signal; according to the invention, the background noise can be well eliminated, the sound quality is improved, and the user experience is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of speech processing, in particular to a speech enhancement method, device, system and computer-readable storage medium. Background technique [0002] Speech enhancement is an effective method to solve noise pollution, so it is widely used in civil and military occasions such as digital mobile phones, Hands-free phone systems in cars, teleconferencing, and reducing background interference for the hearing-impaired. The main goal of speech enhancement is to extract the pure speech signal from the noisy speech signal as much as possible at the receiving end, reduce the listening fatigue of the listeners, and improve the intelligibility. [0003] Under normal circumstances, such as figure 1 The sound waves shown can travel to the inner ear through two paths: air conduction and bone conduction. Air conduction is a well-known sound wave transmitted from the external auditory canal to the mi...

AI Technical Summary

Problems solved by technology

However, due to the influence of the technology, the bone voiceprint sensor can only collect and transmit lower frequency voice signals, which makes the voice sound dull and affects the sound quality and user experience.

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