Creating (typically 2-channel) UHJ recordings is a simple matter of passing B-Format signals through a UHJ encoder and recording the result. These might be derived from soundfield microphone recordings or from mixdown. In addition, mixes can be created directly in UHJ by using a UHJ Transcoder, such as that offered by Audio & Design Recordings in the 1980s, along with other Ambisonic mixing hardware (see Ambisonic mixing: Legacy hardware). The Transcoder both encoded B-Format into 2-channel UHJ and in addition allowed a stereo front stage and a stereo rear stage (both with adjustable widths) to be transcoded direct to 2-channel UHJ, while other units facilitated the production of B-Format mixes that could be encoded into UHJ with the Transcoder.