VocalFusion stereo-AEC voice processor

XMOS high-performance digital signal processing solutions help you build a voice interface quickly into your products. Our stereo-AEC voice processor gives you near-field voice capture quality and processing accuracy at far-field range – even in noisy environments. Ideal if you want to integrate a voice interface into a smart TV, soundbar, set-top box or digital media adaptor.

Distance

Accurate voice capture and barge-in from across the room, even when music is playing loudly and the commands are spoken softly.

Clarity

Full duplex stereo acoustic echo cancellation, noise suppression and dereverberation cut unwanted noise and echo for optimised ASR processing.

Direction

Using beamforming to track the speaker of interest, you’ll get best in class performance at all angles and over long distances.

Our rich optimisation parameters for the XVF3500 voice processor lets you adjust for noise attenuation, gain control and residual echo so you can tailor the best voice capture performance for your product. And our engineering team are on hand to help you move rapidly from prototype to tuning and from testing to volume production with a world-class product.

Development Kit

XK-VF3500-L33

  • VocalFusion 4-mic stereo-AEC development kit

    XVF3500 processor board

    • XVF3500 voice processor
    • Micro-USB connector for power (optional USB2.0 device connectivity)
    • Low jitter, audio quality clock
    • Stereo DAC with integrated headphone amplifier
    • 4 configurable user input buttons
    • 13 user-controlled LEDs
    • xTAG interface for JTAG debug

    XVF3500 voice processor (programmable for far-field voice capture)

    • Full duplex stereo acoustic echo cancellation (AEC)
    • Programmable AEC latency
    • Barge-in
    • 4 channel digital microphone interface
    • Adaptive beamformer
    • Dereverberation
    • Noise suppression
    • Automatic Gain Control (AGC)
    • Direction of arrival indication (DOA)

    Compact microphone array

    • Linear, 100mm long
    • 4 x Infineon IM69D130 PDM (Pulse Density Modulation) MEMS microphones
    • 33.33mm inter-microphone spacing

    Connectivity

    • Inter-Integrated Sound (I2S) audio interfaces
    • Inter-Integrated Circuit (I2C) serial or USB control interface
    • High speed USB2.0 compliant
    • Multi-channel USB audio class 1.0
    • 16-ball FBGA package 0.5mm pitch

Silicon

XVF3500-FB167-C

  • XVF3500 voice processor

    • 4-channel digital microphone interface
    • Full duplex stereo acoustic echo cancellation (AEC)
    • Programmable AEC latency
    • Barge-in
    • Adaptive beamformer
    • Dereverberation
    • Noise suppression
    • Automatic Gain Control (AGC)
    • I2S audio interface or high speed USB2.0 compliant device
    • I2S output to DAC, up to 48kHz PCM
    • I2C serial or USB control interface