Does splicing introduce significant delay in the signal path?
Not necessarily. If the new stream is ready to start when the Out Point of the Old stream arrives, then the new stream can be cut in without delay. This presumes control over the start time of the new stream. However, if there is no control over either of the streams and no coordination of the location of splice points, a splicing device may use buffers to attempt to perform stream synchronization on the fly, and this may introduce delay.
