Concatenate mp3 files in java when one is a silent mp3

Question

I am trying to join two mp3's using java SequenceInputStream in Eclipse. It works fine if both are regular mp3 with sound. But if there is a blank mp3 with no sound in the series, it overrides the previous mp3, and also doesn't show up as a silent break in final output. Could the overwriting be because of some header issue? and how can I get a blank silence at the end of the mp3?

Answer 1

You would have to convert your mp3 to a PCM data format (ex : wav)

Then take mesures to determine if it's a silence :

Calculate the dB or RMS value for a group of sound frames and decide at what level it is considered to be 'silence'.

see this thread and also this one for further details