Method for dynamically adjusting vibration feedback with audio, system, and device

A computer device, comprising:

• a memory;
• a processor;
• and
• computer programs stored in the memory and executable to the processor;
• wherein the computer programs, when executed by the processor, cause the processor to implement operations of a method for dynamically adjusting vibration feedback with audio, wherein the method comprises:
• acquiring original audio data;
• defining preset signal vibration thresholds, tracking instantaneous audio power envelopes of the original audio data to obtain corresponding instantaneous power features, and adaptively adjusting the preset signal vibration thresholds according to the instantaneous power features to obtain signal vibration thresholds;
• determining the vibration intervals for the original audio data according to the instantaneous power features and the signal vibration thresholds, and dynamically adjusting vibration signal amplitude envelopes of the original audio data to generate vibration driving signals;
• and
• outputting vibration feedback based on the vibration driving signals;
• wherein defining the preset signal vibration thresholds, tracking the instantaneous audio power envelopes of the original audio data to obtain the corresponding instantaneous power features, and adaptively adjusting the preset signal vibration thresholds according to the instantaneous power features to obtain the signal vibration thresholds, comprises:
• in an i-th frame, a preset signal vibration threshold is Ti (1), at a t-th moment in the original audio data, a signal vibration threshold is Ti (t), and an instantaneous power feature obtained by tracking the instantaneous audio power envelopes is Ci (t);
• setting a ratio r and adjusting the instantaneous power feature Ci (t) according to the ratio to obtain a second instantaneous power feature Ci′ (t), wherein Ci (t)=r*Ci (t);
• comparing an amplitude of the second instantaneous power feature Ci′ (t) with a signal vibration threshold Ti (t−1) at a (t−1)-th moment, and adaptively adjusting the Ti (t);
• in response to the amplitude of Ci′ (t) being greater than the Ti (t−1), increasing the signal vibration threshold Ti (t);
• and
• in response to the amplitude of Ci′ (t) being less than the Ti (t−1), decreasing the signal vibration threshold Ti (t);
• wherein determining the vibration intervals for the original audio data according to the instantaneous power features and the signal vibration thresholds, and dynamically adjusting the vibration signal amplitude envelopes of the original audio data to generate the vibration driving signals, comprises:
• comparing the Ci′ (t) and the Ti (t) in the original audio data, and in response to the Ci′ (t) being greater than the Ti (t), determining a time interval corresponding to the t-th moment as a vibration interval;
• and
• providing a vibrator having a resonance frequency f and a rated voltage vrms, filling a single-frequency and short-length signal of the resonance frequency f and the rated voltage vrms into the vibration interval according to a length of the vibration interval and a power level within the vibration interval, and adjusting a vibration signal amplitude envelope according to an instantaneous audio power envelope to generate a vibration driving signal within the vibration interval.

A non-transitory computer readable storage medium, configured to store computer programs, which, when executed by a processor, causes the process to implement operations of a method for dynamically adjusting vibration feedback with audio, wherein the method comprises:

• acquiring original audio data;
• defining preset signal vibration thresholds, tracking instantaneous audio power envelopes of the original audio data to obtain corresponding instantaneous power features, and adaptively adjusting the preset signal vibration thresholds according to the instantaneous power features to obtain signal vibration thresholds;
• determining the vibration intervals for the original audio data according to the instantaneous power features and the signal vibration thresholds, and dynamically adjusting vibration signal amplitude envelopes of the original audio data to generate vibration driving signals;
• and
• outputting vibration feedback based on the vibration driving signal;
• wherein defining the preset signal vibration thresholds, tracking the instantaneous audio power envelopes of the original audio data to obtain the corresponding instantaneous power features, and adaptively adjusting the preset signal vibration thresholds according to the instantaneous power features to obtain the signal vibration thresholds, comprises:
• in an i-th frame, a preset signal vibration threshold is Ti (1), at a t-th moment in the original audio data, a signal vibration threshold is Ti (t), and an instantaneous power feature obtained by tracking the instantaneous audio power envelopes is Ci (t);
• setting a ratio r and adjusting the instantaneous power feature Ci (t) according to the ratio to obtain a second instantaneous power feature Ci′ (t), wherein Ci′ (t)=r*Ci (t);
• comparing an amplitude of the second instantaneous power feature Ci′ (t) with a signal vibration threshold Ti (t−1) at a (t−1)-th moment, and adaptively adjusting the Ti (t);
• in response to the amplitude of Ci′ (t) being greater than the Ti (t−1), increasing the signal vibration threshold Ti (t);
• and
• in response to the amplitude of Ci′ (t) being less than the Ti (t−1), decreasing the signal vibration threshold Ti (t);
• wherein determining the vibration intervals for the original audio data according to the instantaneous power features and the signal vibration thresholds, and dynamically adjusting the vibration signal amplitude envelopes of the original audio data to generate the vibration driving signals, comprises:
• comparing the Ci′ (t) and the Ti (t) in the original audio data, and in response to the Ci′ (t) being greater than the Ti (t), determining a time interval corresponding to the t-th moment as a vibration interval;
• and
• providing a vibrator having a resonance frequency f and a rated voltage vrms, filling a single-frequency and short-length signal of the resonance frequency f and the rated voltage vrms into the vibration interval according to a length of the vibration interval and a power level within the vibration interval, and adjusting a vibration signal amplitude envelope according to an instantaneous audio power envelope to generate a vibration driving signal within the vibration interval.