The invention relates to a sound synthesis method and device and a vehicle, and the method comprises the steps: carrying out the time domain-to-frequency domain conversion of a multi-frame signal in a first audio signal of a pre-stored sound, so as to obtain each frequency domain component of the multi-frame signal; and for the at least one frequency domain component, according to the conversion coefficient corresponding to the working condition parameter, on the basis of the original phase of the corresponding frequency domain component in the adjacent frames and on the basis of the original phases of different frequency domain components in the same frame, performing phase compensation to obtain a target phase. And carrying out conversion from a frequency domain to a time domain according to the target phase, and adjusting the signal length to obtain a target audio signal of which the signal length is matched with the first audio signal. During phase compensation, phase compensation is performed on the basis of the corresponding frequency domain components in the adjacent frames in the time domain, and phase compensation is performed on the basis of different frequency domain components in the same frame in the time domain, so that frequency shift processing can be performed on time-varying sinusoidal signals and non-sinusoidal signals, and the technical problem of poor applicability in related technologies is solved.
本公开涉及一种声浪合成方法、装置及车辆,通过对预存声浪的第一音频信号中的多帧信号进行时域到频域的变换,以得到多帧信号的各频域分量。对至少一频域分量,根据工况参数对应的转换系数,在相邻帧中对应频域分量的原始相位的基础上,以及,同一帧中不同频域分量的原始相位的基础上进行相位补偿,得到目标相位。进而根据目标相位进行频域到时域的变换,以及信号长度调整得到信号长度与所述第一音频信号匹配的目标音频信号。由于在相位补偿时,不仅在时域上基于相邻帧中对应频域分量进行相位补偿,而且在时域上基于同一帧中不同频域分量进行相位补偿,从而可以对时变正弦信号和非正弦信号进行移频处理,解决了相关技术中适用性较差的技术问题。
Sound wave synthesis method and device and vehicle
声浪合成方法、装置及车辆
2024-09-24
Patent
Electronic Resource
Chinese
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