Apparatus and instruments for recording, processing, receiving, reproducing, transmitting, modifying, compressing, decompressing, broadcasting, merging or enhancing of sound, images, video or data; controllers for apparatus and instruments for recording, processing, receiving, reproducing, transmitting, modifying, compressing, decompressing, broadcasting, merging or enhancing of sound, images, video or data; video and audio switching apparatus; controllers for video and audio switching apparatus; equipment and controllers for automated camera control and camera movement; camera motion controllers; audio and video broadcasting equipment; controllers for audio and video broadcasting equipment; video and audio replay controllers; routers; audio and video mixing apparatus; controllers for audio and video mixing apparatus; digital mixing apparatus; controllers for digital mixing apparatus; video and audio servers.