I understand that you charge per audio minute/hour. My question is, what if you're transcribing a conference and you obviously have 'silent' moments between speakers. Do you charge only from the moment the speaker starts or for the whole audio sent by the client? I'm working on something like this at the moment, and have been typing away for ever because the speaker is reading (non-stop!). Imagine the client asked for a quote for a one-hour audio file, but in actual fact the speaker is going on and on for 30 mins. with a couple of breaks in between. What to I charge? the hour or the 30 mins?