VOICEN Linear 4 Mic Array Kit

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Description
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VOICEN is an open source project to build voice-enabled devices. Check this project at http://voicen.io/.

The first goal of the project is to make an open source smart speaker. With an open source smart speaker, you are free to choose which voice assistant to use. You have full control of your device to install apps and to share your data.

The first hardware of VOICEN project is a DIY smart speaker kit - VOICEN Linear 4 Mic Array Kit.
The front view of VOICEN Linear 4 Mic Array Kit:
VOICEN Linear 4 Mic Array Kit-front.png

The Top View of VOICEN Linear 4 Mic Array Kit:
VOICEN Linear 4 Mic Array Kit-top

VOICEN Linear 4 Mic Array Kit

The kit lets you build a smart speaker from scratch. It can run a variety of voice assistants such as Amazon Alexa, Google Assistant, MyCroft, Snips Offline Voice Assistant, and Baidu DuerOS. It supports AirPlay and UPnP/DLNA. You can turn it into a music box with Mopidy and MPD, or use it to automate your home with Home Assistant.

Applications:

● Built a smart speaker with multiple voice assistants
● Make a Wi-Fi speaker with AirPlay and UPnP/DLNA
● Setup a multi-room audio system
● Automate your home with Home Automation
● Learn to use a variety of audio processing algorithms such as Acoustic Echo Cancellation (AEC), Direction Of + Arrival (DOA), Noise Suppression (NS) and Beamforming
● Learn how to send data over audio

Check this video of assembling the first prototype of VOICEN Linear 4 Mic Array Kit, to build a smart speaker from scratch:

Specifications:

● AllWinner H3 (Quad-Core ARM Cortex A7 @ 1.296 GHz)
● 512MB RAM
● 8GB eMMC Flash
● 16GB Micro SD Card
● 4 Channels ADC AC108
● 4 MEMS microphones (64dB SNR, -38dB Sensitivity)
● 4Ω 3W Loud Speaker 4 LEDs (RGBY)
● 1 Touch Key
● 1 Paper Case
● 1 Micro USB Cable

Useful link:

● Wiki
● Github
● Support