Stephen Metcalfe’s Work Log

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  • Post last modified:February 17, 2024
  • Reading time:4 mins read
  • Post category:Work Logs


This week I tried Openai’s Whisper on the Rapsberry Pi, with Raspian and also Ubuntu. Whisper is an open-source speech-to-text program built on Python. Raspian proved very difficult to work with, even doing basic things like adding repositories and downloading packages. However, Whisper was able to work on Ubuntu, but the speed of the tests were disappointing. This week I will work on seeing if I can speed up the tests, I am hoping feedback from the CDR will assist in this.

To do list:

  • Find ways to speed up Whisper on the Pi
  • Find alternate speech-to-text programs that may be faster
  • Receive feedback from the CDR about current issues

I still have several concerns, mainly being that we haven’t received our Digi-Key parts yet. We still have plenty of work to do with just the Pi, we it would be nice to test the quality of those parts. My other concern is that the Pi just may not have the processing power for what we want to do with it.


I wasn’t able to accomplish much this week. We looked into potential software that will come in handy, and we’ve started to narrow down our options and the methods that we’re going to use. We have received the Pi and temperature and humidity sensor. Interfacing the two will be on the to-do list this week. Unfortunately I can’t knock any of the items off from last week since we don’t have all of the parts, most importantly the microphones.

To do list:

  • Receive and inspect remaining parts
  • Connect components to Pi, install drivers, etc
  • Listen to an audio playback of MEMS microphone recordings, ear-test quality

My concern remains the same, I am hoping we get our parts ASAP so we can begin testing things out with them.


Here is my sketch of what the state of the project will ideally look like at the end of this semester:

To do list:

  • Receive and inspect parts
  • Begin connecting components to Pi, install drivers etc.
    • Make sure we have necessary cables
  • Listen to an audio playback of MEMS microphone recordings, ear-test quality

Right now, my biggest concern is waiting for the parts to arrive. We had a bit of a delay on order, partially due to our budget expanding, but also because we needed to conduct a ton of research on each component we ordered, as the quality of them is integral to the success of the project.

Start of Spring 2024 Semester