public function getAudios()
    {
        $qb = $this->entityManager->createQueryBuilder();
        $qb->select('f')
            ->from('\Media\Entity\File', 'f')
            ->innerJoin('\Media\Entity\ObjectFile', 'obf', Join::WITH, 'f.id = obf.fileId')
            ->where('f.type = :type')
            ->andWhere('obf.entityName = :name')
            ->andWhere('obf.objectId = :id')
            ->setParameter('type', \Media\Entity\File::AUDIO_FILETYPE)
            ->setParameter('name', $this->getEntityName())
            ->setParameter('id', $this->getId());

        return $qb->getQuery()->getResult();
    }