Hi,
I'm having trouble with expensive or semi-expensive headphones. I bought the Sennheiser EPOS ADAPT 660 AMC, but when I started using the microphone, the audio quality switched to poop. I contacted support, but they couldn't tell me what the issue was or if it was even an issue, so I returned them. I then bought the Sony WH-1000XM5 and they have the same problem. Why is this happening? I've searched online and found others with the same issue, but their solution is to return the headphones or not use the built-in mic. I haven't found any information on why this is happening or how to find headphones that don't have this issue. Reviewers aren't mentioning it and I'm curious why. As a gamer, I often use headphones for both gaming/music while having a "call" and this issue makes it impossible, because of the quality switch when using mic.
I also have the Logitech G733 and they don't have this issue, the sound quality remains the same whether I use the microphone or not.
I kinda have two questions: why is this "normal" and how can I find out if a particular set of headphones will have this issue before I buy them?
Thanks a lot.