Someone asked me to explain to them how the electronic anti skip function used in portable and car CD players worked and while I knew it involved buffering the audio, I got thoroughly confused when I tried to figure out how to explain that in more detail.
Wikipedia gave me this for "Electronic Skip Protection":
*********Technology
When the buffering circuitry is in operation, the compact disc is read at a fixed read speed or CAV and the content is buffered (with optional ADPCM compression) and fed to RAM within the player. The audio content is read from RAM, optionally decompressed, and then sent to the amplifier. When the disc reading is interrupted, the player momentarily reads the data stored in RAM while the tracking circuitry finds the passage prior to the interruption on the CD.
********The word "prior" in the last sentence confuses me, I would have expected it to say "after" there.
Could someone please give me a better explanation or a link to one?
Thanks guys,
Jeff