Could you explain more? I could ask an LLM but I find it friendlier to ask you, ha! If you don't mind of course.
What does a bias oscillator do that would help, and is the ips speed slow ie it's a low "resolution" (so to speak) analog recording?
What does a bias oscillator do that would help, and is the ips speed slow ie it's a low "resolution" (so to speak) analog recording?
Anyway, rather than call it "low resolution", loss of high-frequencies (low pass) is closer to the mark.
The microphone in the OA pictures looks pretty basic as well, and perhaps intended for voice recording mainly. So we have limited high frequencies from comparatively slow tape speed, rumble from the dc bias, and a microphone that perhaps isn't catching low frequencies.