The OPARA service was recently upgraded to a new technical platform. You are visiting the outdated OPARA website. Please use https://opara.zih.tu-dresden.de/ for new data submissions. Previously stored data will be migrated in near future and then the old version of OPARA will finally be shut down. Existing DOIs for data publications remain valid.

Alle Rohdaten zur CO2-Messung und Auswertung, die in der Publikation "How safe is singing under pandemic conditions? - CO2 -measurements as simple method for risk estimation during choir rehearsals" im Journal of Voice enthalten sind.

Diese Sammlung ist Open Access und öffentlich zugänglich.