Having a lot time at home as we're all now isolated (more or less), I had discussion on another audio-forum about the bit test.
Being bored I've bit-tested all possible file transports and digital audio paths at home. Test included even TV paired optically with my lovely ADI-2 DAC/ passed 44.1/16.
All went quick and easy. Now I'm 100% sure that all my digital paths are Bit Perfect and no cables nor magic-tricks could change the sound. Bit perfect is bit perfect, nothing less, nonthing more.
Easy-peasy, good fun though Good for me, but not for disbelievers. Not many people there have a DAC equipped with Bit Test option + test files. Finally, not many audiophiles really understand meanning of Bit Perfect. They don't even care about it LoL!!!
Therefore, I'm gonna play more with testing digital paths. Soon I'm gonna burn test files on CD-R and test my CD transports. But to puzzle out how the testing works (as I'm not engineer) i need to ask you guys question.
I believe that the test files available to download on RME website are identical to template files hidden somehow in my ADI. During test the files are compared if identical and no bit was changed. - Am I right? Or it works different way?
Another question is if I could modify test-file using some binary editor (let's say, changing only single binary value 0 to 1 for example)? And then try if even one changed bit is detected by test.
Or maybe after modification the file entirely will be recognised as "unsupported file" and impossible to reply on any digital player? Please forgive me this question if sounds silly but I'm curious and hungry for science. Please be patient, English is'nt my first language.
Kind Regards, Siemak