These lectures are recorded on a tablet PC using Camtasia Studio. Some tips about using the tablet PC and recording:
F9
makes it very convenient to pause/resume recording on Camtasia..swf
. Without automatic zoom, a 50 min. lecture at 5 frames/sec. occupies 12MB or so. My production preset is here. .swf
is limited to 16000 frames which limits the duration to 53.3 minutes. .flv
file at the same resolution settings is 5-6 times larger. .mp4
is very good and is not limited in duration..camrec
files(~180MB/hr). Change the recording format to Techsmith LAME MP3 with resolution that results in about 10kb/sec. This results .camrec
files with about 60MB/hr. In the default format, what is even more annoying than the file size is the skew between audio that you hear and audio waveform that is displayed in Camtasia while editing. This makes it very hard to edit. If you end up with such a case, extract the contents into an folder file from Camtasia Studio, reimport the .avi
stream into a new .camproj
file and edit it. Techsmith website has detailed information on fixing the skew.