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如何在Java中获取声音文件的总时间?

audio file java

Student · 技术社区 · 16 年前

如何在Java中获取声音文件的总时间?

--更新

long audioFileLength=audioFile.length();

    recordedTimeInSec = audioFileLength / (frameSize * frameRate);

--更新

另一个工作代码(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));

2 回复 | 直到 16 年前

mdma 16 年前

给予 File

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

-1

Milo Banks 8 年前

这是一个简单的方法:

FileInputStream fileInputStream = null;
long duration = 0;

try {
    fileInputStream = new FileInputStream(pathToFile);
} catch (FileNotFoundException e) {
    e.printStackTrace();
}

try {
    duration = Objects.requireNonNull(fileInputStream).getChannel().size() / 128;
} catch (IOException e) {
    e.printStackTrace();
}
System.out.println(duration)

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