static File voiceRSS_file(S voice, S text) {
  text = voiceRSS_preprocess(text);
  //print("[" + voice + "] " + text);
  S text2 = text;
  if (l(text2) >= 100) text2 = shorten(text, 100) + "-" + md5(text);
  ret javaxCachesDir("VoiceRSS/" + voice + "/" + urlencodeForFileName(text2) + ".mp3");
}