Offline Voice Recognition module

[toymaker]

Hi All

I have been playing with this really cool (low-cost) VR (should be SR Speech Recognition) module - it really works well! Lots of applications for Pics.  It's the best embedded SR unit that I have ever used.

https://thepihut.com/products/gravity-offline-language-learning-voice-recognition-sensor-for-arduino-raspberry-pi-python-esp32?variant=42439147290819

Tony

[Parmin]

Seems to be a good price as well.
Thanks for the info.

[charliecoutas]

Hi Tony

Does it need external library stuff or can you drive it straight from a PIC? Sounds like it could be a fun addition for an exhibit in a museum.

Charlie

[ken_k]

There seems to be quite a few vendors of this product.
This supplier lists the fixed commands.
https://www.dfrobot.com/product-2665.html

Youtube
https://www.youtube.com/watch?v=qSqbq6sm4rQ

https://www.youtube.com/watch?v=XlILfn9Z7H8

[toymaker]

Ken, those videos are good and explain it well - its pretty simple to connect to a Pic - serially it outputs when the wake-word is heard and then when a command is heard - read the first 8 bytes and the phrase heard is on the 8th byte - the other are headers chksums etc.

Charlie, straight from the Pic - its an incredible module for the money!

Tony

[charliecoutas]

Ken, Tony

Thanks. One of these will be going into The National Museum of Computing's Quantum Computer without a doubt!

Charlie

[Earlj]

Does anyone have the format for the serial or I2C I/O for this module ?
I found the serial output is 9600 baud.

[charliecoutas]

Sorry I can't help with the I2C Earlj, I am using RS232, which is also 9600. It's a great module, I am building it into an exhibit for our museum. It's not going as well as hoped as I have broken a bone in my foot and am now in plaster. You only get 17 commands that you can enter, I wish it was more.

Charlie

[ChrisRowe]

Hi,
I have a couple of AI thinker VC02 speech recognition development boards which I have started to play with, been sat in my to do box . It has max of 150 commands which it looks like you can setup yourself using their online SDK. You then download the new firmware and upload to the board. Two development kits with speakers and microphones cost me 8 euros. More difficult to set up than the DFRobot module as the documentation is not good it may however be more flexible. I will let you know how I get on ...

https://www.aliexpress.com/item/1005004491016254.html?spm=a2g0o.store_pc_allProduct.8148356.1.336e2d4bVBDlAn&pdp_npi=3%40dis%21EUR%21%E2%82%AC%202%2C63%21%E2%82%AC%201%2C90%21%21%21%21%21%4021038eda16979781669002036e21c3%2112000029565445654%21sh%21PT%212670762205


Chris 

[charliecoutas]

That looks incredible Chris. I will certainly look forward to hearing how you get on.

Charlie

[Earlj]

Some very good info about the module

https://github.com/DFRobot/DFRobot_DF2301Q