问题
Hi I need to read SampleRate, SignalFrequency and Amplitude from .wave file. How can I do that using JavaSound?
回答1:
You can get the sampling rate by getting a handle on the AudioFormat object:
AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(new File("test.wav"));
AudioFormat audioFormat = audioInputStream.getFormat();
Once you have that, you can get the sample rate as follows:
float sampleRate = audioFormat.getSampleRate();
As for the amplitude, that is basically the raw .wav file data, which you can access directly from the audioInputStream by calling any of its read() methods.
来源：https://stackoverflow.com/questions/7275647/how-can-i-read-info-from-wave-file-using-javasound-java-java-sound