c语言实现声波模拟
时间: 2023-07-13 14:12:36 浏览: 64
在C语言中,可以使用音频库或者音频处理库来实现声波模拟。以下是一个使用SDL2库实现声波模拟的例子:
```c
#include <stdio.h>
#include <SDL2/SDL.h>
#define SAMPLE_RATE 48000
#define AMPLITUDE 32767
#define FREQUENCY 1000
int main(int argc, char *argv[])
{
SDL_AudioSpec spec;
spec.freq = SAMPLE_RATE;
spec.format = AUDIO_S16SYS;
spec.channels = 1;
spec.samples = 4096;
spec.callback = NULL;
SDL_AudioDeviceID dev = SDL_OpenAudioDevice(NULL, 0, &spec, NULL, 0);
if (dev == 0) {
fprintf(stderr, "Failed to open audio: %s\n", SDL_GetError());
return 1;
}
SDL_PauseAudioDevice(dev, 0);
int phase = 0;
while (1) {
float time = (float)SDL_GetTicks() / 1000.0f;
int value = (int)(AMPLITUDE * sin(2.0f * M_PI * FREQUENCY * time + phase));
SDL_QueueAudio(dev, &value, sizeof(value));
phase += value;
}
return 0;
}
```
该程序使用了SDL2库来打开并初始化音频设备,然后通过一个循环来生成正弦波,将其写入音频设备的输出缓存中,从而实现声波模拟。注意,该程序是一个无限循环,需要手动停止。