from my experience, it's absolutely necessary if you listen to a lot of podcasts because every tech-illiterate podcaster dude will see an EQ setting on their microphone/recording software and think "low frequencies are manly and sound good" and boost the hell out of it, and it sounds absolutely awful.
Granted my home speakers might have something to do with it, and headphones/earbuds do tend to have a high-pass filter built in just from their construction, so it probably doesn't affect everyone the same way.
I've been using equalizerAPO for desktop for years. I can only think of a handful of content creators that don't pull that bass-boosting garbage anymore, so the high-pass filter pretty much always stays on unless I'm playing music.
Or don't even normalize. The one podcast I regularly listen too regularly has guests record over the phone or DIY and they are often inaudible (to my over used ears). That'd be a great feature on spotify if it doesn't exist
Somebody should really make an easy-mode podcast recording app that functions as a phone call, but records the speakers locally, and then sends the audio to the host. It could even measure the latency on the call can cut that time out. This seems like it would be pretty trivial...
Granted my home speakers might have something to do with it, and headphones/earbuds do tend to have a high-pass filter built in just from their construction, so it probably doesn't affect everyone the same way.
I've been using equalizerAPO for desktop for years. I can only think of a handful of content creators that don't pull that bass-boosting garbage anymore, so the high-pass filter pretty much always stays on unless I'm playing music.