GuiltyRocker
Headphoneus Supremus
Rob, do you also design the overall look of the unit, or does that fall to Chord to handle? When you're testing these prototypes, are you just putting them into a metal box to stop EMI and RFI and the overall look of the product is designed later? Just curious on the process.Yes - but like all things it's a bit more complicated.
So when we got the new unlimited precision FFT running, I could see that the old coefficients were incorrect and not giving anything like the anticipated measured performance. So around the time of London CanJam panic set in, as the listening tests to design the old coefficients gave improved sound quality, which should have given a measured improvement. So either the original listening tests were wrong, or my understanding of what was technically causing the SQ changes was wrong. Not a good place to be in.
Once the new coefficients were calculated with the new tool set, I had to repeat all the original listening tests to confirm everything - and with coefficients that measured perfectly, the preferred settings were the same as before much to my relief. And it turned out that with more thorough mathematical analysis of the old coefficients did reveal that in part it was tracking the expected performance - so my understanding of what was going on was also correct. But having the correct values did give a leap in overall SQ. Also, I identified another new issue, which led to another SQ improvement. So today I am in a very good place, but it has delayed everything by 3 months.