simulator. Brüel & Kjær design includes soft moulded pinnae, nose, mouth and torso. Any dummy head or HATS can be used to record audio of the same nature but different types of them are specifically designed to accomplish different tasks. A new manufacturer to the market for recording binaural is 3Dio with the purpose of recording on a smaller scale. The 3Dio microphones are situated in the ears at an average head distance apart, however the model does not include the full head or torso. The main applications for the above manufacturers include: Brüel & Kjær 4128D/C products: Telephone handset testing, Audio conference testing, Hearing aids, Hearing protectors 3Dio Free Space (Pro) microphones: Instruments with high frequency dependence, Pro studio recording, Binaural capture (ASMR), Nature recording GRAS Sound & Vibration: industry-standard for anthropomorphic testing in the fields of telecommunications, hearing conservation, noise abatement, sound recording and sound-quality evaluation. Within the film industry Demolition was the first radio drama recorded using a dummy head. In 1974 Virgin Records issued the first solo album by Tangerine Dream's leader Edgar Froese, titled Aqua. The brief sleeve notes inform listeners that side 2 of the disc - i.e. the tracks NGC 891 and Upland - were recorded using the artificial head system developed by Gunther Brunschen. Listeners were advised to optimise their listening by using stereo headphones for that side of the album. Although Edgar was keen to continue to use and promote this system for subsequent recordings, it was abandoned, due to the fact that, although it worked well through headphones, the improved sound quality did not translate adequately through a hi-fi speaker system. In 2005, Aqua was remixed for limited edition reissue in Germany and Japan, with an additional track Upland Dawn appended to the end of the CD. In 2015, Singaporean singer-songwriter JJ Lin released his debut experimental album From M.E. to Myself, using dummy head recording. This is also the first album in pop music industry using this technology. See also Head-related transfer function Binaural Autonomous Sensory Meridian Response (ASMR) Interaural time difference Sound localization Blumlein pair References Acoustics Sound recording ja:バイノーラル録音