Audio Thing Type A (Digitaalinen tuote)

Type A is a plugin inspired by the famous Dolby® A Trick technique. The original unit was designed to be a noise reduction system for tape recording (encode stage) and playback (decode stage).
Type A emulates the encode stage, which was often misused as an enhancer, dynamically increasing the top end of a signal without introducing artifacts or altering the harmonic content. The results are similar to a dynamic EQ which adds presence and air to any track in a natural way.
To limit the amount of noise generated by tape recording, early noise reduction systems used what’s called a multi-band compander (compressor/expander).
The unit dynamically emphasises the high frequencies during the encoding stage (recording to tape), so that during the decoding stage (playback from tape) the signal is attenuated, along with the typical tape noise.
Type A emulates the encoding stage only.