I've started integrating vorbis support with cscore in a project. I noticed that the NVorbisIntegration sample returns incorrect position after seeking. This is caused by possible incorrect implementation of the Length() and Position() properties in the
Having played with NAudio and NVorbis in the past, I took a look here:
After modifying the Length() and Position() properties in your NVorbisSource class to reflect those in the VorbisWaveReader.cs class above, I got a correct Position back after seeking.