We’ve compiled a list of answers to common questions.

What is the typical setup of the system?

The YARRA 3DX sound projector has two components: a 21-inch wide array of 33 mm drivers and a 6-inch powered subwoofer (wired). The small array can be placed directly under your monitor (or over your keyboard) and the subwoofer placed on the floor in a convenient location. The system can be remotely controlled using our app to deliver “near field” or “far field” beams. In a living room, two users can enjoy fully immersive surround sound at a distance of 8-10 feet. Gamers can set up the array 2-4 feet away for near field use. The powered subwoofer has a built in power supply and the YARRA 3DX unit uses an external power supply (120/240 volts).

How is the sound quality?

Some members of the audio development team are audiophiles and have advocated hard to make the YARRA 3DX the best sounding sound bar available — certainly at this price point! The internal signal processing meets the standards for high-resolution audio by running at 96 kHz/24-bits. Analog and digital inputs provide a variety of connection options for modest audio systems as well as high-end components. The fidelity was favorable compared with the new Lexicon 3D audio system costing ten times more!

How much will it cost?

The cost of the YARRA 3DX and accompanying subwoofer is anticipated to be less than $600. The wireless option for the subwoofer may cost slightly more — the engineering details are still being worked out.

What the idea behind the multicolored lights?

YARRA 3DX meets the requirements of a diverse set of applications. The subtle illumination was deemed appropriate for gamers and more intimate environments. Of course, the lights can be controlled by the user and switched off when not wanted.

When will the product be available?

MyBeam™ is the patented “beamforming” technology that makes the YARRA 3DX function has already been successfully deployed in our ProAV unit. That means that we don’t have months or years of research to finished before we can begin manufacturing units. We’re only looking to ramp up tooling and assembly in order to meet demand. We also have strategic partners that have helped us with custom drivers and who stand ready to move into full production later this year. Units should be available by the end of the year.

Will YARRA 3DX come in alternate finishes or colors?

The standard finish will be brushed aluminum. However, we are considering a matte black option for the gaming community.

What content can you use the sound projector with?

YARRA 3DX depends on delivering binaural content to create a fully immersive soundscape. The system enhances existing content including 2.0 channel stereo, 5.1, and 7.1 formats and even Dolby Atmos and Auro 3D — surround sound with height information by converting all audio to binaural. If you can experience it with your two ears, our system will tailor the incoming multichannel audio with HRTFs to provide you with a 3D audio experience.

Will YARRA 3DX work with mono or stereo content?

Yes, the internal DSP processing enhances regular stereo programming and can extract spatial information from mono sources.

Will the YARRA 3DX have wireless connectivity?

Yes, we support WiFi and Bluetooth connectivity as well as traditional analog and digital connections (RCA, USB and HDMI).

I’ve heard binaural recordings. How is this different?

There are lots of well known examples of binaural recordings available online. Most of these were actually recorded using a binaural head, which is a special type of 3D audio capture system that places two microphones inside an artificial head or two small microphones in you ears. The effect is very impressive and is great at capturing the acoustics of any environment. The YARRA 3DX sound projector doesn’t depend on sources that have been made using a binaural head. Our software processes any source with custom HRTFs and models the output beams to your location. The sound is more immediate, less diffuse, and can be adjusted with our app.

Haven’t headphones companies and some speaker makers already done this?

There are lots of “so-called” 3D audio, immersive headphones being touted as the solution to VR/AR and gaming listening. However, it turns out that multiple drives placed in close proximity to your ears do not usually deliver compelling 3D experiences. There can be problems with tracking, HRTF compatibility, and phase — not to mention the problem of long term fatigue. YARRA 3DX solves these problems by adopting a “transaural” rather than binaural approach. It turns out that beamforming opens up tremendous opportunities that headphones can’t match.

Will the YARRA 3DX support 240 volts as well as 120?

Yes, the YARRA 3DX sound bar is powered by an external power supply that supports the 240 voltage standard. The subwoofer has its own internal power supply and is compatible with 120/240 volts.

Can you explain Beam width?

The width of a sound beam is variable depending on how many listeners are present, their position, and the distance from a listener to the array. An important consideration is the attenuation between the beams directed at the left and right ears, which is around 20 dBA over only a few inches. This is what allows a binaural audio program to be heard as an immersive, 3D audio experience.

What aspects of the system are controllable through the YARRA 3DX app?

We have a library of beam “positions” that allow users to select a “sweet spot” corresponding with a single listening position. The system provides for up to 3 individual listeners, each with their own pair of beams.  For more than 3 listeners, we suggest switching to stereo mode, in which one hears a widely dispersed stereo field. Users can also configure the system for near or far field beamforming, adjust individual EQ, select and set HRTF filters, and control/mute individual channels. All setting can be stored and recalled from internal memory for quick setup.

How do you account for different speaker to speaker distances?

All speaker drivers in the YARRA 3DX are equidistant and arranged as a linear array. Several pairs of beams can be selected for their range (near to far) and angle from about -60 to +60 degrees (assuming 0 is center).

The method of crosstalk control we use does not require active attenuation and delay adjustments once angle is selected for listener location, within a gaze heading range of about -15 deg to +15 degrees. Again, the method of crosstalk control does not require adaptation to small angular and head adjustments because left channel information is suppressed at the right ear because it is rendered primarily to the left ear, and vice versa.

That said, we do employ up to single sample phase resolution (delay) and very fine amplitude and spectral control in order to achieve correct time alignment at the ear and timbral integrity in our beam forming algorithm. The algorithm also suppresses unintended lobing which is found in simpler delay and sum beam forming.

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