Cytat z broszury AKG
1992: The revolution – IVA (Individual Virtual
Acoustics) processing
With the BAP 1000 sound processor, AKG first
presented the specifically developed, patented
IVA system for the spatial imaging of sound
sources through headphones.
IVA (Individual Virtual
Acoustics) processing
Since we only have two ears, humans localize
sound sources in our environment with
“binaural hearing”. Sound waves from a given
source arrive at one ear earlier than they do
at the other, and they “look” different, too.
Fig. A: Amplitude and phase shifts allow us
to localize a sound source in space (threedimensional
perception of sound).
Fig. B: Headphones usually eliminate these
important amplitude and phase shifts.
Sound sources are perceived as being localized
inside the head rather than in the room.
Fig. C: IVA processing developed by AKG
adds to a stereo signal the amplitude and
phase shifts that are necessary to create the
same sense of natural sound as in binaural
hearing.
In short, IVA processing provides a perfectly
natural stereo and multi-channel theater
sound found in modern movie theaters
through headphones at home.
