The invention relates to a sound synthesis method and device and a vehicle, and relates to the technical field of intelligent cabins. The method comprises the following steps: framing a time domain audio signal of a reference sound wave to obtain a plurality of first time domain frame signals; and after any first time domain frame signal is subjected to time-frequency domain transformation to obtain a first frequency domain frame signal, the signal amplitude and the signal phase of each frequency point in the first frequency domain frame signal are adjusted according to the vehicle working condition parameters to obtain a second frequency domain frame signal. And after time-frequency domain inverse transformation is carried out on the second frequency domain frame signal, audio synthesis is carried out based on a second time domain frame signal obtained through the inverse transformation, and a time domain audio signal of the target sound is obtained. Visibly, the signal amplitude and the signal phase of each frequency point are adjusted through the first frequency domain frame signal obtained by framing and time-frequency domain transformation on the reference sound based on the vehicle working condition parameters, so that the adjusted signal amplitude and the adjusted signal phase of each frequency point are changed along with the vehicle working condition parameters and are closer to sound generated by a traditional engine.
本公开涉及一种声浪合成方法、装置及车辆,涉及智能座舱技术领域。方法包括:对参考声浪的时域音频信号进行分帧,得到多个第一时域帧信号。对任一第一时域帧信号进行时频域变换得到第一频域帧信号之后,根据车辆工况参数,调整第一频域帧信号中各频点的信号幅度和信号相位,以得到第二频域帧信号。对第二频域帧信号进行时频域逆变换之后,基于逆变换得到的第二时域帧信号进行音频合成,得到目标声浪的时域音频信号。可见,通过基于车辆工况参数,对参考声浪进行分帧和时频域变换所得到的第一频域帧信号,调整各频点的信号幅度和信号相位,从而使得调整后的各频点的信号幅度和信号相位随车辆工况参数而变化,更加趋近于传统发动机产生的声音。
Sound wave synthesis method and device and vehicle
声浪合成方法、装置及车辆
2024-09-06
Patent
Electronic Resource
Chinese
IPC: | G10L Analyse oder Synthese von Sprache , SPEECH ANALYSIS OR SYNTHESIS / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
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