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Genelec R&D director Aki Mäkivirta on the power of new UNIO PRM system

Genelec R&D director Aki Mäkivirta has spoken to Headliner about the brand’s new UNIO Personal Reference Monitoring Solution, unveiled at last month’s IBC 2024, and what it’s launch means for the studio market.

The new Genelec 8550A Professional Reference Headphones and Aural ID V2.0 Binaural Headphone Monitoring Technology build on the UNIO ecosystem by offering the most accurate and truthful headphone listening experience ever, according to the Finnish brand.

This latest solution comprises the 9320A SAM Reference Controller, Reference Measurement Microphone and the new 8550A Professional Reference Headphones – which help create an more seamless bridge between professional in-room loudspeaker and personal headphone monitoring.

Furthermore, with the additional headphone calibration features available within Genelec GLM software – and the optional Aural ID V2.0 binaural headphone monitoring technology – users can enjoy a ‘personal and truthful’ headphone monitoring experience.

To find out more about the technical innovation that fuelled the creation of the new UNIO PRM system, Headliner caught up with Mäkivirta to discuss the new launch what it means for audio professionals…

When did work on the UNIO Personal Reference Monitoring Solution start, and what was the philosophy behind it?

Like all Genelec technology, the UNIO PRM has involved many years of development. The aim of the UNIO Ecosystem is to enable headphones to be used as a monitoring tool with a level of accuracy that loudspeakers have traditionally provided. UNIO gives audio professionals the ability to seamlessly navigate different monitoring options, whether that’s in-room loudspeakers or headphones, for the flexibility to work anywhere, anytime – from stereo to immersive.

This is not possible with headphones alone. But reliable neutral headphone reproduction is the key and the fundamental building block. Without neutral headphones, it is not possible to take advantage of binauralisation technology like our Aural ID, which enables virtual loudspeakers to be created using the headphones, delivering the kind of externalised sound stage presentation that you would expect from loudspeaker-based monitoring.

Being an ecosystem, UNIO extends far beyond headphone-based personal monitoring alone, bringing in connectivity features that enable professionals to work with all audio signal types, including audio over IP.

The philosophy we embrace is that of freedom – freedom of choosing when and where to work, and providing a personal monitoring experience without compromise.

This is an incredibly significant launch for Genelec. What has the response from the market been like?

The market reaction has been extremely positive, and people are immediately coming up with ideas of how they can liberate their working process using our new solution. We launched the UNIO PRM at IBC in Amsterdam a few weeks ago, and this gave visitors the opportunity to compare stereo and immersive mixes on loudspeakers and headphones. They could literally switch back and forth between the two, and were very quick to comment on how good the translation was in both directions.

Who is this product aimed at?

The UNIO solution is aimed at professionals working in stereo or immersive who need flexibility in their workflow without sacrificing resolution, accuracy and detail in monitoring. With immersive content particularly, it provides democratisation of production, since access to immersive in-room loudspeaker monitoring is not always available, or practical. Typical customers range from audio and film production, to broadcast audio applications, and creatives too. The mobility of the UNIO PRM solution can be a great asset.

People are already coming up with ideas of how they can liberate their working process. Aki Mäkivirta, R&D director, Genelec

Talk us through the headphone calibration features available within Genelec GLM software. How does this work and what benefits does it bring to the listener?

The first step of headphone calibration takes place in the factory, resulting in all 8550A headphones being sonically and, in terms of their sensitivity, the same. The 9320A Reference Controller offers personal calibration for the headphone sound character. We all have expectations on how we want to hear sound on headphones, and these controls enable each user to feel at home with the 8550As, providing exactly the sound needed for maximal accuracy. Within GLM, the personal equaliser offers an overall sound balance control spanning the full audio band, as well as two parametric controls that allows specific adjustments. There is also sensitivity trimming for both left and right headphones. 

How challenging was the process of creating a seamless transition between headphones and monitors when mixing? 

It’s involved a huge amount of work, not just with the PRM, but also the Aural ID 2 binaural app, which PRM users can acquire separately to further personalise the headphone listening experience. This app now installs on Mac computers as a virtual sound card, and can be configured for up to 64 channels. The channel mapping to ‘virtual loudspeakers’ on the headphones can be fully customised. 

The accuracy of the personal experience uses several steps to elevate precision. Firstly, I can bring in my personal way of hearing in the form of the Aural ID profile HRTF data specifically designed for me, resulting in externalisation of audio and correct rendering of direction and sound colour. Secondly, I can take further steps to align this to an ideal presentation – or my actual loudspeaker-based reproduction system – by performing personal calibration in the Aural ID 2 app. This enables individual virtual loudspeakers to be moved in azimuth, elevation and level, to align to my reference loudspeaker-based system. 

Then, by using the rich parametric filters set in Aural ID 2, I can make the sound colour presentation neutral or similar to my loudspeaker system. After this, GLM and the 9320A Reference Controller enable seamless switching between the personal headphone and loudspeaker-based monitoring domains. 

Just how compatible is the new PRM system with immersive audio projects?

Very! We support any monitor presentation from mono and stereo to the 9.1.6 immersive format. After personal calibration, I believe that it may be possible to complete most of the audio editing and mixing in the PRM system, with only the final touches done using loudspeakers. We do not claim that PRM would replace loudspeakers as the ultimate monitoring tool. But…..the prospect of a more flexible workflow is already very interesting. 

Will there be more headphone products from Genelec in the future?

Well, right now, we are excited to work on the current PRM, making sure that our customers can understand and maximise the benefits of this new approach.