analog.meaning->mq = SR_MQ_SOUND_PRESSURE_LEVEL;
analog.meaning->unit = SR_UNIT_DECIBEL_SPL;
analog.meaning->channels = sdi->channels;
analog.meaning->mq = SR_MQ_SOUND_PRESSURE_LEVEL;
analog.meaning->unit = SR_UNIT_DECIBEL_SPL;
analog.meaning->channels = sdi->channels;