如何在Java中获得声音文件的总时间？

Question

如何在Java中获得声音文件的总时间？

--update

看起来这段代码可以正常工作:long audioFileLength = audioFile.length();

    recordedTimeInSec = audioFileLength / (frameSize * frameRate);

我知道如何获取文件长度,但我没有找到如何获得声音文件的帧速率和帧大小...任何想法或链接？

- 更新

一个工作代码(使用@ mdma的提示):

    AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(file);
    AudioFormat format = audioInputStream.getFormat();
    long audioFileLength = file.length();
    int frameSize = format.getFrameSize();
    float frameRate = format.getFrameRate();
    float durationInSeconds = (audioFileLength / (frameSize * frameRate));

Answer 1

鉴于File你可以写

File file = ...;
AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(file);
AudioFormat format = audioInputStream.getFormat();
long frames = audioInputStream.getFrameLength();
double durationInSeconds = (frames+0.0) / format.getFrameRate();