LiveATC Discussion Forums

Air Traffic Monitoring => Listener Forum => Topic started by: smack847 on November 29, 2020, 06:43:46 PM

Title: Why Are Some Archive Files Over 30 Minutes Long?
Post by: smack847 on November 29, 2020, 06:43:46 PM
I assume that when an archive MP3 is shorter than the 30 minute span, it's probably due to a feed outages and that makes sense.  But I'm curious as to why sometimes the archive MP3's are longer than 30 minutes, such as 48 minutes?  Also, in such a case, will the audio at the beginning of the file be from the start time and the extra at the end be part of the next half hour period?

I'm a big fan, and donated again just now.  Keep up the great work!
Title: Re: Why Are Some Archive Files Over 30 Minutes Long?
Post by: dave on November 30, 2020, 08:02:35 PM
Every archive should be around 32 minutes long. We continue recording past the 30-minute mark to make sure nothing is lost in the transition period.

No archive should ever be 48 minutes long. Usually the issue is that you're looking at a variable bitrate encoded file and your player is reporting the wrong duration. Could that be the issue?