ToneTester: A Macintosh application that tests hearing Turns out I have a left-pitch offset of -0.15 semitones. Good to know. #link 2005.12.28 @ 20:48 // Aux // You were reading ToneTester: A Macintosh application that tests hearing, a link posted with comment by MacDara Conroy. It is filed under Aux and was published in December 2005. If you liked what you read here, you can follow this site via its web feed, and find many more entries in the Archive. You can also buy me a Ko-fi.