XMOS VocalFusion Dev Kit User Manual
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XMOS VocalFusion Dev Kit User Manual

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VOCALFUSION
TM
USER GUIDE
VOCALFUSION DEV KIT
Welcome to the VocalFusion Dev Kit for evaluation of the XMOS XVF3510 far-field voice processor. The XVF3510
voice processor interfaces to a 2-mic array, and uses the XMOS voice algorithms to capture commands several
metres away from the device and deliver a voice stream optimised for an Automatic Speech Recognition (ASR)
engine running on the system application processor. The algorithms include Acoustic Echo Cancellation and an
Interference Canceller for static point noise sources, making the XVF3510 the ideal solution for smart TVs, set-top
boxes and TV accessories that output multi-channel audio.
2019-06-19
Copyright © 2019 XMOS Ltd, All rights reserved
XM-013899-PC

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Summary of Contents for XMOS VocalFusion Dev Kit

  • Page 1 USER GUIDE VOCALFUSION DEV KIT Welcome to the VocalFusion Dev Kit for evaluation of the XMOS XVF3510 far-field voice processor. The XVF3510 voice processor interfaces to a 2-mic array, and uses the XMOS voice algorithms to capture commands several metres away from the device and deliver a voice stream optimised for an Automatic Speech Recognition (ASR) engine running on the system application processor.

  • Page 2: Table Of Contents

    VOCALFUSION DEV KIT - USER GUIDE 7. CONTENTS 1. VocalFusion Dev Kit features ......................... 3 1.1. VocalFusion Dev Kit firmware and control utility ..................3 2. Setting up the VocalFusion Dev Kit ........................ 4 2.1. Amazon AVS support .......................... 4 2.2.

  • Page 3: Vocalfusion Dev Kit Features

    Control Reference Configuration File USB In/Out xk_vf3510_l71_usb (pre-installed) I2S Slave xk_vf3510_l71_i2s_slave USB Out / Analog In xk_vf3510_l71_hybrid_usb_i2s Each configuration is provided by a firmware image, see www.xmos.com/xvf3510 for further details. 2019-06-19 Copyright © 2019 XMOS Ltd, All rights reserved XM-013899-PC...

  • Page 4: Setting Up The Vocalfusion Dev Kit

    Developers who want to integrate the XVF3510 kit with the Amazon Alexa Voice Service (AVS) should refer to the VocalFusion Dev Kit for Amazon AVS, which includes details about how to install the AVS SDK and Sensory TrulyHandsfree wake word engine on the Raspberry Pi and use the I2S Slave configuration.

  • Page 5: Getting Started - Capture And Playback Over Usb

    3. On the Recording tab, select Show Disabled Devices, right-click on the Stereo Mix device (may be called “Wave Out Mix”, “Mono Mix”, or “Stereo Mix”) and select Enable. 4. Double-click the Stereo Mix device to open the Properties window. 2019-06-19 Copyright © 2019 XMOS Ltd, All rights reserved XM-013899-PC...

  • Page 6: Mac Osx Sound Settings

    5. Click the gear icon at the bottom of the window to open the Options menu and select Use This Device For Sound Output. 6. Select XVF3510 from the Master Device drop-down list. 2019-06-19 Copyright © 2019 XMOS Ltd, All rights reserved XM-013899-PC...

  • Page 7: Linux Host Utility

    7. Run the following command to set the combined output as the default sound output. echo “set-default-sink combined” | pacmd You are now ready to record the audio captured by the XVF3510 - see Section 4. 2019-02-11 Copyright © 2019 XMOS Ltd, All rights reserved XM-013899-PC...

  • Page 8: Recording The Captured Audio

    Ensure that the default sound output device matches your evaluation setup. You should hear this music through the powered speakers. Adjust the volume using either the music player or the speakers. 2. Open Audacity and configure it to communicate with the VocalFusion Dev Kit. •...
  • Page 9 • The playback music is removed by the Acoustic Echo Cancellation. • Your voice is isolated by the Interference Canceller. • Background noise is removed by the Noise Suppression algorithms. 2019-06-19 Copyright © 2019 XMOS Ltd, All rights reserved XM-013899-PC...

  • Page 10: Alternative Hardware Configurations

    I2S Master software implementation and wakeword technology on the RPi SD card and integrate with the XMOS firmware. For details of using the I2S hardware and software configuration please refer to the VocalFusion Dev Kit for Amazon AVS User Guide.

  • Page 11: Further Information

    Adestro AT25SF161 configuration file ADESTO_AT25SF161.spispec The VocalFusion Dev Kit includes an XTAG debug adapter. Plug the adapter into the XSYS DEBUG connector on the XVF3510 base board, and then use a USB cable to connect the XTAG to your development system.

  • Page 12: Hardware/Firmware Support

    Copyright © 2019, All Rights Reserved. Xmos Ltd. is the owner or licensee of this design, code, or Information (collectively, the “Information”) and is providing it to you “AS IS” with no warranty of any kind, express or implied and shall have no liability in relation to its use.

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