Speech recognition library

[fede99]

Goodmorning,

I'm working on a project running on nrf840. I would like to add a speech recognition system able to recognize some words ( more or less 10 words).

There is some Nordic compatible library ?

thank you so much

[Jørgen Holmefjord]

Hi,

I do not have any experience with this, but I found this "Keyword Spotting for Microcontrollers" library from ARM, which may be of interest.

Not sure about your comment about ADC, but if you are thinking for capturing the voice, I would rather recommend that you have a look at the audio-peripherals like PDM and I2S.

We have voice capture/recognition features in the Smart Remote 3 reference design, but here the voice recognition is not processed on the nRF chip.

Best regards,
Jørgen

[fede99]

thank you so much for your support.

I also found TensorFlow Lite suitable for this purpose. 

do you you know it? do you have any feedback on it ?

thank you 

[Jørgen Holmefjord]

You can find some information about TensorFlow in this blog post, and some more example projects here: https://github.com/oivoii/nrf-tensorflow/tree/micro_speech_kb

[Jørgen Holmefjord]

Yesterday, we announced partnership with Edge Impulse. This has support for nRF52840 DK and nRF5340 DK, and provides tutorials for the following machine learning models:

• Building a continuous motion recognition system.
• Recognizing sounds from audio.
• Responding to your voice.

[fede99]

I saw the link you post, amazing.

I would like to add the speech recognition to my project. From the tutorial I didn't understand how to import the library to my project.

Do you have any suggestion?

thank you so much

[Jørgen Holmefjord]

You should be able to select a C library under the deployment page, which you should be able to integrate in your application. See from around 21:24 in the video tutorial.