MCX MicrocontrollersのトピックWake Word and Voice command engines

Wake Word and Voice command engines

ZoSo1872 — Mon, 03 Mar 2025 00:52:04 GMT

According to the Voice Intelligent Technology page here...

https://www.nxp.com/design/design-center/software/embedded-software/voice-intelligent-technology-wake-word-and-voice-command-engines:VOICE-INTELLIGENT-TECHNOLOGY?tid=vanVOICE-INTELLIGENT-TECHNOLOGY

...the mcxn947 board is supported and indeed the VIT tool allows you to select the device but i cant find where the example SDK that's mentioned in the user guide. I have the latest sdk version 24.12.00 installed but its not one of the options i can import.

If i follow go via sdk builder and filter for wake word it gives and low power audio example but not for the mcxn947 board

Is there some way i can get the example sdk on the mcxn947 board

thanks

Re: Wake Word and Voice command engines

Harry_Zhang — Mon, 03 Mar 2025 08:02:33 GMT

Hi @ZoSo1872

The MCX-N9XX-EVK board is not connected to any audio related hardware.

So the MCX-N9XX-EVK SDK does not include audio relevant examples.

You can download the MCX-N5XX-EVK SDK.

It includes the audio example.

Harry

Re: Wake Word and Voice command engines

ZoSo1872 — Tue, 25 Mar 2025 16:13:40 GMT

I was able to find the SDK and now have the VIT lib folder

I am trying to to take audio from an electret mic which is stored in a buffer via 16 bit adc sampling @ 16k. I think i can follow the VIT lib header file and user guide to create the program that calls the model but i cant work out how i feed the audio from the mic into the VIT model i have created.

are you able to offer any advice on this ?

Re: Wake Word and Voice command engines

Harry_Zhang — Mon, 31 Mar 2025 09:03:23 GMT

Hi @ZoSo1872

After setting up the buffer, you need to pass each frame of audio data to the VIT processing function.

So you can't pass each frame of audio data to the VIT?

Harry