[improvement]: Get Record() audio duration/length about asterisk HOT 4 OPEN

What granularity do you need for "exact duration"? Is there a reason something like this doesn't work?

same => n,Set(start=${EPOCH})
same => n,Record(...)
same => n,Set(end=${EPOCH})
same => n,Set(duration=$[${end}-${start}])

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Granularity would be just whole seconds - no need for fractions of a second.

Your epoch solution is what we're doing now, and it works OK if the dial plan is, in fact, that simple. But when you're doing error handling, or having to Goto() another place (or deal with a Hangup event) then the epoch calculation has to be made elsewhere in dialplan, which almost always ends up with Durations that are 1 or 2 seconds off.

We automatically subtract 1 second for all instances where the ${end} calculation happens on another label/context, so that solves most scenarios - but a dial plan variable with recording length would solve all those issues.

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@jcolp Do you mind transferring this back to the main repo? There is now a patch to go with this.

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Request completed.

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