CallGraph Skype Recorder records by default in stereo mode which means that your voice and other participant(s) voice are on different tracks in the file. While playing back you will hear your voice on one side of the speaker while your caller/callee’s voice on the other side. To force CallGraph to record in a single track change the channels to mono from Configuration -> Recording tab (how-to). This change will affect all subsequent calls recorded with CallGraph. For older one’s, you can convert them to mono using an audio editor (eg. Audacity).
The stereo mode is useful if you’re recording podcasts since you can edit each track separately. Having voices on separate track makes it easier by an order of magnitude. It also helps with the transcription of audio file and we recommend that you record in stereo mode if you plan to get it transcribed.
Sometimes due to misconfiguration of the PC’s playback settings, only one track is audible during playback and it appears that CallGraph is recording only one side of the call, even though Skype connection has been authorized. A quick fix is to set the recording mode to mono.