The phrase "tuning process" refers to the act of making small adjustments or improvements to something in order to achieve the desired result or outcome. Full definition
The team of engineers are currently fine tuning the process to optimize its efficiency. (sciencedaily.com)
The next - generation premium audio setup incorporates an enhanced system architecture, new speaker design, and an improved tuning process. (prnewswire.com)
This has been a huge help, but we're still trying to fine - tune the process even more. (thenextweb.com)