I recently encountered a problem while using audacity. I am frequently recording video tutorials with Camtasia for Mac and start my audacity recording at the same time with the mic disabled in Camtasia. I do this, because Audacity has superior audio quality and better editing features. I then export the file as WAV and import into my Camtasia project. This has worked very well for me during the last year with no problems. For most of my recordings I used a late 2011 iMac with 12GB Ram and Thunderbolt external HDD. Besides the RAM, the iMac was an off the shelf products in its lowest configuration.
During the last two weeks, I had to record several new video tutorials and I noticed that while Camtasia was at 45min running time, Audacity only recorded something like 29 minutes. The skipping always happened at undefined periods with no extra stress on the CPU. I am using a Samson Meteor Mic (USB) and have the usual stuff connected to my Mac. Without any change in hardware it just started out of the blue. I then decided to switch computers and record my tutorials with my MacBook Pro (mid 2014 model - highest configuration) hooked up to an external monitor. It worked for one tutorial but not the next. It seems that the audio losses are very random and I can’t figure out what might cause this.
To rule out the stress on hardware completely, I had Camtasia and Audacity record today for an hour at the same time just random stuff I was doing on my computer. Checking emails, browsing, etc and then I was gone for 30minutes, not doing anything at all on the computer. When I returned Camtasia had recorded the entire time just fine with 1 hour and 20 minutes. Audacity was recording as well but the timeline showed me that it was only at 49 minutes…? In one tutorial the first hick-up appeared after 1 min 30 seconds. There is for a few seconds up to 30 seconds or so simply no audio and then it picks up. There are no anomalies in the wave-line either.
I really need to get these tutorials finished and out there, but I can’t record them several times, hoping that one might turn out well. I have already wasted more than 4 hours of recording because of this issue. Hope that someone can help me here to figure this out…
PS: I am now recording as well and both Camtasia and Audacity at exactly at 12 min 30 seconds…