Week 68

What I pre-planned

• ai wearable
  • take insipiration from existing firmware
  • downgrade to older sdk and APIs for compatibility
  • complete basic audio transfer implementation
• midi detect
  • improve frequency detection and midi conversion

What new did I learn

• very interesting recursive copy command almost filled up my entire ssd
• saying hello on the phone was started by graham bell (inventor) himself and made its way to all languages
• laplace transforms are so freaking awesome
• how codec work (a little)
  • complexity, VBR, sample rate, sample sizes

Where/How did I implement it

• a lot of work stuff, somehow I have responsibilities for a lot of projects
• locked in at the firmware for the entire week (after work hours)
  • reimplemented the transfer system from scratch using purely callbacks and minimal threads
  • identified proper priorities for threads (pusher > codec > mic)
  • got gibberish but succesful audio transfer in 2 days this week
  • realized complexity was not able to catch up, celt wasn’t working for some reason
  • implemented low complexity silk approach and got it working
  • somehow wrote a firmware that can send audio data over BLE in REALTIME without packet loss at decent quality
• after the firware success, improved the frequency detection algo
  • identified smoothing was causing bad intermediate notes, which after fixing performs much better

Any memorable moments of the week

• my site priyavkaneria.com has like 90k visitors in a week
• watched “500 days of summer” and it is a beautiful movie
• bought a LOT of groceries (ready for some weight gain)
• platform 65 idea of serving food on train is cool (quality mid)