Actual link to forum: https://www.audioasylum.com/messages/pcaudio/119979/

"found that a function called memcpy was the culprit, most memory players use memcpy and this is one of the reasons why memory play sounds worse ie digital sounding. Fortunately there is an optimised version of memcpy from http://www.agner.org/optimize/, using this version removes the hard edge produced by memcpy."

I don't know why people are mocking this discussion. It's well documented that tight loops on CPUs can cause electromagnetic interference. Old timers with C64s will recall how it could affect the TV monitor output "fuzziness" and nearby AM radios - heck, I could even tell how a program hung by the sound it made.

https://news.ycombinator.com/item?id=16167594

https://retrocomputing.stackexchange.com/questions/25435/com...