正如 Vlad 指出，不要分配堆栈上有 50MB.

As Vlad pointed out, don't allocate 50MB on the stack.

但是，这一点没有实际意义，因为您不需要分配 任何 数据.尝试通过一次调用 std::reverse来替换整个代码片段代码>:

But, the point is moot because you don't need to allocate any data. Try replacing your entire code fragment with a single call to std::reverse:

std::reverse(&sound_data[0], &sound_data[track_samples]);