@Override
	public byte unmute(int soundID) {
		if(this.soundMap.containsKey(soundID)) {
			if(this.isPlaying(soundID) && this.isMuted(soundID)) {
				float previousVolume = this.mutedMap.get(soundID);
				this.setVolumeChecked(soundID, previousVolume);
				this.mutedMap.remove(soundID);
				
				return 1;
			} else {
				return 0;
			}
		} else {
			return -1;
		}
	}