How to convert the Audio input to text output in embedded system.I am using SAM4S controller. Please let me know which way can proceed further to implement.
Run it through a neural network. And yes, this answer is not meant to be serious, as the question does not seem to be :-)
Arm has done research into Machine Learning (ML).
https://developer.arm.com/solutions/machine-learning-on-arm/developer-material/how-to-guides
Take a look at the Voice Recognition section of the "Internet of things" page:
https://developer.arm.com/solutions/internet-of-things/voice-recognition
https://developer.arm.com/solutions/internet-of-things/voice-recognition/voice-on-arm
https://developer.arm.com/documentation/102470/latest/
The projects based on a Cortex-M microcontroller are using the CMSIS-NN pack
arm-software.github.io/.../index.html