问题描述
看我有一个音轨，其采样速率为44100又是什么意思呢？
see i have one audio track whose sample rate is 44100 then what does it mean ?
什么是音频的一个帧的持续时间？我怎样才能得到它在C？
what is the duration of one frame of audio? How can i get it in c?
请问框架和样品都是用于音频不同的称呼？
Does frame and sample both are different term for audio?
推荐答案
音频的样品类似于视频的帧，它是在特定的时间点上的声级的捕获，以同样的方式作为一个帧视频是光图案的捕获。 44,100帧速率每秒44,100个样本，或44.1千赫。所以一个样本持续时间为1 /44100秒= 2.26e-5秒。
A sample of audio is similar to a frame of video, it's a capture of the sound level at a particular time point, in the same way as a frame of video is a capture of the light pattern. A frame rate of 44,100 is 44,100 samples per SECOND, or 44.1 kHz. So a sample duration is 1/44,100 seconds = 2.26e-5 seconds.
我们可以听到的声音中的大致范围为20赫兹至20千赫，因此采样率必须很高，以捕获信息足够精确重现它没有太多的工件
We can hear sounds in the approximate range 20 Hz to 20 kHz, so the sample rate needs to be very high to capture that information accurately enough to reproduce it without too many artifacts.
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