Question

This is a forked problem off of this question: flac: "ERROR: input file has an ID3v2 tag" (it doesn't). I’ve solved the initial issue there but that didn’t resolve one problem I was having, so I’m going to introduce it separately here.

I’m using a Ruby gem called speech2text to convert an audio file into (approximated) text. Calling it on the command line works fine (Mac Terminal). However, the following Java code:

String[] cmd = {"speech2text", "tmp/audio/pop-test-audio.wav"};

    ProcessBuilder builder = new ProcessBuilder(cmd);
    builder.redirectErrorStream(true);
    Process process = builder.start();

Only receives this back from the process streams:

/Library/Ruby/Gems/1.8/gems/speech2text-0.3.4/lib/speech/audio_inspector.rb:50:in `initialize': undefined method `first' for nil:NilClass (NoMethodError)
from /Library/Ruby/Gems/1.8/gems/speech2text-0.3.4/lib/speech/audio_splitter.rb:77:in `new'
from /Library/Ruby/Gems/1.8/gems/speech2text-0.3.4/lib/speech/audio_splitter.rb:77:in `initialize'
from /Library/Ruby/Gems/1.8/gems/speech2text-0.3.4/lib/speech/audio_to_text.rb:15:in `new'
from /Library/Ruby/Gems/1.8/gems/speech2text-0.3.4/lib/speech/audio_to_text.rb:15:in `to_text'
from /Library/Ruby/Gems/1.8/gems/speech2text-0.3.4/bin/speech2text:11
from /usr/bin/speech2text:19:in `load'
from /usr/bin/speech2text:19

I don’t know anything about Ruby, hence my lightweight use of the library through Java. I really can’t tell what’s going on here, but I know that it works when executed in exactly the same way from the Terminal. Has anyone got any idea what might be causing this?

Answer 1

You could also ditch the terminal and try JRuby. It’s just as fast as the normal Ruby VM and is easier to integrate with Java.