To create Spatial Auditory Events via More Channel Headphones related on Portable 5.1 /5.0 Surround Reproduction of Sound

摘要

In the future “portable surround” devices will be the successor of “stereo” applications in games, cell / mobile phone applications or “mp3-players”. This portable technique evolutions need world-wide compatible electro-acoustic headphones without any “mean” HRTF (head-related transfer function) or binaural DSP (digital signal processing). Such headphones offer natural and realistic 3D images of sound with a minimum of elevation effects and a virtual distance perception front and back. The individualized HRTF for instance made by a near-field offset / de-centric headphone speaker placement at the earcup’s offers measurable advantages in regards to a “mean” HRTF via DSP. The past 119. AES till 28. AES Conference presented further problems like a compatible downmix of 5.1 to 2.0 signals mainly due to DSP based headphones, but also to remind to the 4.0 downmix seeing 4-channel surround sound headphones. As well the connections of headphones is to discuss: It should be available standardized vario 3,5” jack for stereo and more channel signal supply. Herewith are presented main basics how to realize this spatial auditory events via 4-channel headphones plus the mode of a direct audio signal supply loudspeaker compatible.