The Conversa Voice Suite

Conversa is a comprehensive full-duplex handsfree telephony speech processing suite providing total control of uplink and downlink audio. Conversa embedded multi-microphone, full-duplex voice processing delivers the ultimate in sound quality for speakerphone and headset applications.

Whether you’re designing a speakerphone, headset, TWS earset, wearable or automotive voice solution, you need a full-duplex voice processing solution that will perform in all noise types. Conversa is the answer for those seeking the best in speech quality.

Conversa Tuning Tool Signal flow

Conversa Tuning Tool Signal flow

Conversa delivers

  • Superior voice quality and double talk performance

  • 360 degree adaptive beamforming ideal for multi-microphone speakerphone products

  • Super-directional beamforming technology is ideal for isolating target voice in noisy background environments in multi-microphone headset applications

  • Support for beamforming using typically 2, 3 or 4 microphones, with flexibility to support up to 9 or more microphones (processor dependent).

  • Advanced noise reduction for filtering out background noise

  • Acoustic design flexibility for placement of microphones

  • PC tuning tool for accurate product tuning.

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What is SuperDirectivity?

Don't worry if you never heard of SuperDirective beamforming because it's some of our latest technology from Retune.  

Super-Directional beamforming allows signals from multiple microphones to be segregated according to the direction the sound, just like beamforming. The difference is it is much more powerful. 

Consider a situation sketched below:


A headset with SuperDirectional beamforming will make the far end only hear clearly the target speech, and renders the disturbing speech complete inaudible to the far end speaker!

SuperDirectional beamforming works best with:

  • Two or more microphones in a fixed geometry

  • The target talker is in a fixed angle (geometry) relative to the array.

  • Disturbing talker and noise signals arrive from a direction as different as possible from the talker.

  • Target talker in end-fire direction relative to at least two microphones.

 SuperDirectivity is only available from Retune DSP. 

Available on these processors:

Qualcomm: QCC512X, CSR867X, CSRA68100

Dialog Semiconductor: DA14195, DA14196

Analog Devices: ADAU1472

ARM Cortex A-Series

Knowles: Athletico, Chelsea

For further information on Conversa, please reach out to us at