Thank you very much for the answers!
well I now have cable headphones, as a driver Wasapi. Nevertheless, the noise remains there, and already at very low volume the levels quickly fade into the red. ASIO still doesn't work, ASIO4ALL doesn't seem to work in Cakewalk in general. I followed the instructions from the videos, it seems to be hardware related, right? Outside Cakewalk as I said everything ok with the sound.
I don't know what interface I need, I definitely don't want to record anything via microphones, I just want to work with digital instruments. So I wouldn't need any microphone connections. Would an interface or sound card solve my audio problems at all? For example, I looked up the https://www.amazon.de/Soundkarte-TechRise-Lautstärkeregler-Kontrolle-Tablet-PC/dp/B01M0HP59L/ref=sr_1_1_sspa?dchild=1&keywords=ASIO%2BUSB-Soundkarte&qid=1635684091&sr=8-1-spons&smid=AYK8RGDIO4P1N&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyUUhZQkFFNjBLMVVOJmVuY3J5cHRlZElkPUEwMDYxNzIzMTVXS1pINERLQzFEMiZlbmNyeXB0ZWRBZElkPUEwMTU3NjkxMUlYQlQwWDE0SkUwRyZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1 The reviews seem good, only the sound is apparently quiet, with Realtek Audio it is already quiet with me at least now, although it beats out quickly. Someone wrote about a headphone amplifier that would solve the problem?