Article

Acoustically Transparent Headphones as an Add-On for a Head-Mounted Display (en)

Authors

* Presenting author
Day / Time: 21.03.2024, 11:00-11:40
Room: Glasgang, Posterbereich A
Typ: Poster
Session: SPP2236 - Auditory Cognition in Interactive Virtual Environments (Posterbereich A)
Information:

Die Poster werden durchgängig von Dienstag bis Donnerstag im Glasgang ausgestellt, sortiert nach thematischen Zusammenhängen in der hier angegebenen Posterinsel (siehe Sitzungstitel). Das Posterforum zur angegebenen Zeit bietet die Möglichkeit, mit den Autor*innen in Diskussion zu kommen.
Abstract: The validation of virtual acoustics in an audiovisual VR scenario will often include a direct comparison to the real acoustics of a room. Comparing a loudspeaker reproduction in a room with head-tracked binaural auralisations over headphones and visuals via head-mounted display (HMD) may lead the headphones passively influencing the sound reproduced by a loudspeaker. This can be reduced by filtering the headphone representation to account for the passive influence of the headphones. However, this will affect the reproduction of the loudspeaker and will differ from the original sound when the headphones are not worn. Another option is to increase the passive transparency of the headphones without losing too much energy in the low frequency range. The AKG K1000 extra-aural headphones are a good compromise. The downside is that production of these headphones has been discontinued and they are only available second-hand. Wearing both an HMD and headphones is also rather inconvenient. To overcome these issues, we built a 3D-printed support to attach the headphone directly to the HTC Vive Pro, compared different driver types and sizes for frequency response and passive transparency and tweaked the 3D-printed support for acoustic transparency. The result is a low-cost headphone add-on for a HMD.