@Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        AudioMDMetadata other = (AudioMDMetadata) obj;
        if (audioMD == null) {
            if (other.audioMD != null)
                return false;
        } else if (!audioMD.equals(other.audioMD))
            return false;
        if (audioSrc == null) {
            if (other.audioSrc != null)
                return false;
        } else if (!audioSrc.equals(other.audioSrc))
            return false;
        return true;
    };