import javax.sound.sampled.*;

svoid writeInputStreamsToWAV(L<InputStream> inputStreams, int frames, File wavFile) ctex {
  if (empty(inputStreams)) ret with deleteFile(wavFile);

  AudioFormat format = ((AudioInputStream) first(inputStreams)).getFormat();
  temp AudioInputStream stream = new(sequenceInputStream(inputStreams), format, frames);
  AudioSystem.write(stream, AudioFileFormat.Type.WAVE, mkdirsForFile(wavFile));
}