By @igvina

• Play compressed audio (works better with voices)
• Good speed but can cause slowdowns on 60 fps games
• Configurable speed (from 0.8 to 1.4)

• Works with wav (only 8000 Hz, mono, 1 byte PCM_UNSIGNED). I recommend Audacity to convert to this format
• Configurable quality (from 0 to 10), default is 4
• Good compression (from 88 bytes/s to 530 bytes/s)

• Syntax: java -jar vocoder0.2.jar audio.wav [-options]

  • options:

    • -q VALUE Quality (0 - 10) default: 4
    • -gs SKETCH_FOLDER Generate sketch code
    • -v Play compressed voice
    • -anp PREFIX Array name prefix
    • -ver Show vocoder version

  • examples:

      "java -jar vocoder.jar dog.wav -gs DOG -v -q 6"
      "java -jar vocoder.jar merry.wav -v"
    

• Install the ArdVoice library in the Arduino IDE.
• Add in .ino file:
  • #include <ArdVoice.h>
  • ArdVoice ardvoice;
• To play voice call function: ardvoice.playVoice (...).

• void playVoice(const char *audio);
• void playVoice(const char *audio, uint16_t startTime, uint16_t endTime, float speed);
• void stopVoice();
• boolean isVoicePlaying();