Genelec has collaborated with head-related transfer function (HRTF) modelling technology specialist IDA Audio on the world’s first accurate immersive audio experience for professional headphone users. Accessible via a software application for smartphone, the jointly-developed technology scans the user’s ears, upper body and head to create a Cloud-based customised personal audio profile, which can then be loaded into a DAW via a third-party plug-ins.

Genelec/IDA Audio SoundsuitHistrorically, headphones are limited in their reproduction of 3D audio because of the proximity in a headphone of the audio source, which eliminates the acoustical influence of the listener’s ears and head, and therefore the cues that create the sense of audio source location and distance relative to the listener. With this software application, a favourite pair of headphones can be used to give accurate 3D audio.

As immersive audio revolutionises cinema, live events and the world of gaming and augmented/virtual reality, audio professionals working on immersive content need reliable reference monitoring systems that can accurately reproduce the spatial experience of everyday life. Professionals using headphones for 3D audio can critically monitor 3D audio over headphones, using personal headrelated transfer functions (HRTF), acquired by modelling the listener and then delivered through the above-mentioned Cloud service.

‘Everyone is unique when it comes to hearing – the ways in which our brains perceive the world around us is shaped by our physical features, determining how we hear,’ explains Genelec CEO, Siamäk Naghian. ‘No two people share the same HRTF, because the size and shape of each person’s head, ears, and upper torso all affect how that individual experiences the sounds around them. This makes it extremely difficult to monitor 3D audio over headphones, since using headphones means you remove the effects of those physical features – and this adversely affects the sound.

‘The answer is to 3D scan each individual listener and then map their unique HRTFs. This enables reproduction of those physical effects when headphones are used. Just as an expertly tailored suit fits you perfectly, so does your own personal HRTF. This means that you can precisely hear in three dimensions through any high-quality headphones that you choose to use.’

In the past, the way to acquire unique HRTF profiles was to fit miniature microphones in your ears. You would have to remain completely still inside an anechoic chamber for an extended period of time to take the necessary measurements. Now, using a smartphone camera, users can gathering sufficient data for IDA Audio and Genelec to accurately 3D model and then create the HRTF filter set for personal rendering of 3D audio. Users will also be able to choose to undertake the scan with a designated third party if preferred. Based on years of comprehensive research, IDA Audio’s modelling algorithms provide precision that matches Genelec’s dedication to the accuracy and acoustic transparency of reproduced sound.

‘The audio we listen to should match our experience of the real world,’ Naghian adds. ‘This announcement is about contributing in a very positive way to the daily life of our users. Immersive audio will open up a new dimension within the listening experience. Together with IDA Audio, we are excited to take this radical step forward into the future.’

‘For us, cooperating with the world leader in studio monitoring is a fantastic opportunity,’ says IDA Audio CEO, Antti Vanne. ‘We believe that in-room listening allowing head movements will remain the fundamental method of reference monitoring, but achieving true-to-life spatial reproduction over headphones will enable a much broader audience to enjoy natural and immersive audio experiences. With Genelec, we are breaking new ground and reaching towards untouched horizons in the world of audio.’

The application will be available to professional users in early 2018 as a download from the Genelec website.


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