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Wave Arts Technology Licensing

Wave Arts licenses technology to companies who need high quality signal processing algorithms. Our software is embedded in products ranging from VoIP softphones to A/V receivers to cellphones to video games. Some of the technologies that we have developed and licensed are listed below.

Some of Our Licensees

  • Intercall
  • Citrix
  • Vivoom
  • Analog Devices
  • Cirrus Logic
  • Texas Instruments
  • Microsoft Game Studios
  • Teradyne
  • Motorola

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About Wave Arts

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vSpace is a 3D audio conferencing system. vSpace combines high-definition voice over IP technology with proprietary 3D audio processing to create an immersive conferencing experience. Users wear stereo headsets and connect to vSpace over the internet using a lightweight client. They then hear other participants localized around their head as in a face-to-face conversation. It sounds fantastic, and alleviates the pains of speaker confusion and rigid turn-taking that plague conventional monophonic conferencing systems. vSpace is significantly less fatiguing than existing systems because users do not have to strain to identify and understand other participants.

The vSpace client runs on Windows and Mac OS. It features a graphical user interface that displays the names and locations of other participants along with dynamic speaking indicators, and allows the user to move participants in the virtual space.

vSpace is fully compatible with standard telephones. Users may connect via telephone and enter a conference ID to connect to a vSpace conference. Telephone users hear a conventional conference without spatialization, while users connected via vSpace hear a high-definition spatial conference.

For more information, see

Wave Arts VQE

Wave Arts VQE (Voice Quality Enhancement) is a open source software library implementing acoustic echo cancellation for voice over IP (VoIP) applications. The principal features are:

  • Acoustic echo cancellation (multi-band FRLS algorithm)
  • Acoustic echo suppression
  • Noise suppression
  • Auto-gain control
  • De-clipping (useful for headsets)
  • Speaker distortion compensation
  • Cross-platform audio API: Mac OS-X (CoreAudio), Win XP (MME), Win Vista (WASAPI), and Win 7 (WASAPI)
  • Device selection, volume control, level metering, hot swapping support
  • Sample rate conversion
  • Device calibration to compensate for sampling rate offsets
  • Supports 8 kHz (narrowband) and 16 kHz (wideband) sampling rates
  • Standalone demo application on Mac and Win
  • Integration code for PJSIP

An application integrating with VQE would use the VQE API to open audio devices and stream audio, then all echo cancellation and other signal processing is built-in. It’s cross-platform (Windows and Mac OS-X for now).

If you are using PJSIP, there is integration code that implements a PJSIP audio device using VQE, you need only enable the VQE audio driver in the PJSIP configuration.

There is also a standalone VQE demo application with JUCE user-interface which demonstrates VQE and provides additional example code. The demo application plays some speech that asks you questions, records your answers, and then plays back the echo canceled recording of your answers. The application has a built-in user guide.

Wave Arts VQE is released under a dual GPL/commercial license. Developers can download the source code and test drive, or use it in GPL open source apps, and if you want to use it in a closed source application you must purchase a commercial license.

Download the demo application


Source code

WaveSurround™ - Virtual Surround Technology

WaveSurround lets you listen to 5.1 or 7.1 surround audio over conventional stereo headphones or loudspeakers, without losing the surround effect. WaveSurround uses advanced psychoacoustic and signal processing techniques to create the perceptual illusion that sound is coming from locations where there are no speakers.

The WaveSurround processor inputs 5.1 or 7.1 surround audio and creates stereo output for playback over loudspeakers or headphones. When listening over frontally placed loudspeakers, the listener will hear the virtual surround channels to the side and slightly behind the listener. Listening over headphones, the individual virtual surround speakers are clearly audible in front and behind the listener.

WaveSurround also has stereo input to stereo output modes which are useful for widening conventional stereo. On mobile devices with very closely spaced speakers, WaveSurround can be used to restore a spacious, immersive stereo image.

WaveSurround™ Licensees Include:

  • Analog Devices
  • Denon
  • Cirrus Logic

Audio Demo

Surround drum tracks, downmixed to conventional stereo:

Processed with WaveSurround, for loudspeaker playback:

Processed with WaveSurround, for headphone playback: