Meet Déjà Vu

Finally, true 5.1 surround sound and Déjà Vu is her name.

She'll tingle your senses in an immersive audio experience unlike any other.

Imagine this, wouldn’t it be a blast if you could hear your favorite music for the first time all over again?

Well, you can with Déjà Vu. Déjà takes stereo audio and renders it into discreet, 5.1 surround sound that has music creators, lovers, and artists overjoyed.

Numerous world-renowned music producers, engineers, and artists have heard Déjà Vu, and all have given it a hearty 👍 👍

Among the list of accomplished industry influencers include:

  • Gary Katz (Produced Steely Dan, Donald Fagan, Diana Ross, Joe Cocker, XTC & 10cc)
  • Jean-Michel Jarre - French composer, performer and producer who has sold an estimated 80 million records
  • Grammy-Award Winners Hugh Padgham (The Police, Sting, Phil Collins), Frank Filipetti (Wicked, Elton John & Tim Rice), & Kirk Yano, Producer, (Public Enemy, Mariah Carey, Miles Davis, Phoebe Snow)

⬇️ Déjà Vu explained by Creator/Developer and Founder of Syndicate of Sounds ⬇️

Déjà Vu - FAQ's

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Overview

What is our Déjà Vu surround sound technology?

It is based on our audio algorithm which renders immersive audio from the original stereo mix. We use a linear process, which preserves natural sonic integrity, frequency response, audio level, and faithfully supports all the original production characteristics.

No tricks up our sleeve.

Our Déjà Vu technology does not employ any synthesized channel steering, phase modification, reverb, dynamic level adjustment, or time delay as mechanisms to create surround.

All of those generate artifacts, inconsistent surround representation, do not naturally support the mix, and usually degrades the overall audio performance.

What can Déjà Vu be used for?

Déjà Vu is perfect for venues that want to create truly natural immersive sounding audio. Imagine hearing music as though it is performed live. You hear it all around you. That is what Déjà Vu creates.

Déjà Vu is designed for any venue or audio entertainment system, where surround is supported. It can also be used as a production tool to create surround content from existing stereo source files, such as music, or motion pictures.

And Déjà Vu operates with any stereo or two-channel audio source: CD, over-the-air radio (FM-Stereo/HD Radio), Satellite Radio, a mobile player (iPhone), and streaming.

What makes Déjà Vu better than other technologies out there?

Déjà Vu can isolate all the spatial sonic cues in stereo audio, then place these cues (segments) into the appropriate location of the surround field. This is done without any unnatural artifacts.

The result is an experience that appears rich, musical, natural, and as if the performance is occurring all around the listener.

Modes Of Operation

Déjà Vu operates in multiple modes: mono, stereo (2.0, 2.1), quad (4.0, 4.1), and 5.1 surround. Other speaker configurations can be supported, including higher channels counts and non-standard speaker placement. There is access to adjust the individual levels for stereo input, master output, as well as individual channels. 

Talk deep tech to me.

Stereophonic audio is represented as two physical channels situated to the left and right of the listener. The perception of audio which sonically appears in the center of the two channels is created in the stereo mix through the summation, of the Left and Right channels, for the specific element that is directed to the center. This is known as ‘phantom center.’

For example, a mix may contain three elements: guitar in the left channel, bass in the right channel, and a vocal in the center. The phantom center channel vocal was created by mixing an equal amount of the vocal element to both the left and right channels. The listener hears guitar in the left, bass in the right, and vocal in the perceived center.

To create surround, cues are derived from the original stereo mix to generate a physical center channel. This is done through a static linear process. The isolated center channel, along with the stereo cues are used to derive the rest of the surround channels. The exception is LFE, which is created through a linear low pass FIR filter applied to the summed original Left and Right channels.

Why is Déjà Vu better than other ‘up mix technology?'

There are two categories of Up-Mix algorithms: multichannel converters and ambiance generators. Multichannel converters, which include linear (“passive”) and steered (“active”) matrix methods, are used to derive additional loudspeaker signals in cases where there are more speakers than input channels. These methods are typically implemented in the time domain.

While linear matrix methods are relatively inexpensive to implement, they reduce the width of the front image. In a two-to-three channel Up-Mix, any signal intended for the center is also played through the left and right speakers; the channel separation between left and center, for example, is only ~3dB.

Matrix steering methods update the matrix coefficients dynamically and provide the ability to extract and boost a dominant source. These methods are particularly useful for content such as movie soundtracks, in which one source may be of primary interest at any given time, but the signal-dependent gain changes may cause audible side effects with music.

Ambience generation methods attempt to extract or simulate the ambience of a recording. The term “ambience” refers to the components of a sound that create the impression of an acoustic environment, with sound coming from all around the listener but not from a specific place. Ambience may include room reverberation as well as other spatially distributed sounds such as applause, wind, or rain. The goal of the ambience extraction is to increase the sense of envelopment, typically using the rear speakers.

Ambience generation methods may extract the natural reverberation from the audio signal (for example, by taking the difference of the left and right inputs, which attenuates centered sounds and preserves those that are weakly correlated or panned to the sides), or they may add artificial reverberation.

Wanna take her for a spin? Get in touch with us today.