There will be natural variations in volume between readers. Reject only if the volume is so high that the recording breaks up, or (more commonly) if it is so low that you can’t hear what is being said without reference to the written text.
Pral gen varyasyon natirèl nan volim ant lektè yo. Rejte sèlman si volim nan tèlman wo ke anrejistreman an kase, oswa (pi souvan) si li tèlman ba ke ou pa ka tande sa y ap di san referans ak tèks ekri a.