I have worked in the music streaming industry. We did not try to cheat with bitrate but I am confident that only 1/100000 users would actually notice any diffe

I have worked in the music streaming industry. We did not try to cheat with bitrate but I am confident that only 1/100000 users would actually notice any difference between 128kbit/s and anything higher. Even going lower than 128, you would be surprised how low you need to go before it really becomes noticeable to end users.