The invention relates to a software sound mixing method suitable for an automobile intelligent instrument. The software sound mixing method comprises the steps that first sound data and second sound data needing to be subjected to sound mixing playing are decomposed into multiple sections of first data units and multiple sections of second data units respectively; a first DMA and a second DMA are configured in advance, and the first DMA and the second DMA are used for carrying the first sound data and the second sound data to the sound output interface; the first DMA and the second DMA alternately carry and output mixed sound of a section of first data unit of the first sound data and a section of second data unit of the second sound data; and carrying and outputting of the first sound data and the second sound data are completed. According to the invention, sound mixing of any channel can be realized on any intelligent instrument without extra sound processing hardware. Moreover, the method is high in real-time performance, the upper limit of sound playing delay is controllable, the situations of interruption, queuing and the like are avoided when multiple sounds are played at the same time, and the user experience is good.
本发明涉及一种适用于汽车智能仪表的软件混音方法,包括将需要进行混音播放的第一声音数据和第二声音数据分别分解为多段第一数据单元和多段第二数据单元;预先配置第一DMA和第二DMA,第一DMA和第二DMA用于将第一声音数据和第二声音数据搬运到声音输出接口;第一DMA和第二DMA交替将第一声音数据的一段第一数据单元和第二声音数据的一段第二数据单元的混合声音进行搬运输出;直到第一声音数据和第二声音数据全部搬运输出完成。本发明在任意不具备额外声音处理硬件的智能仪表上均能实现任意通道的声音混合。且本方法实时性高,声音播放延时上限可控,多声音同时播放时不会发生打断、排队等情况,用户体验良好。
Software sound mixing method suitable for automobile intelligent instrument
一种适用于汽车智能仪表的软件混音方法
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler / G10L Analyse oder Synthese von Sprache , SPEECH ANALYSIS OR SYNTHESIS |
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