dizzydizz   Members

Hi all! I'm a classically trained pianist but have no prior experience with digital music or any experience trying to record myself playing. I own a Yamaha P-515 keyboard. When I play, the volume is set to about 70%, and I'm using the "CFX Grand" soundfont thingy (it's the default piano sound when you turn on the piano). I am trying to record myself playing with the following setup: * I have two stereo cables, L and R, plugged into the back of the piano, and those cables are plugged into... * A Zoom AMS-24 Audio Interface (which has a toggle for "Mic Line" vs "Guitar"—I chose "Mic Line", and all the other knobs are set to 5), which itself is connected via a USB-C cable to... * My Macbook, which is running Garageband. I can record myself just fine with this setup, and it "sounds" exactly like I played it—Garageband accepts it as an input instrument, I play a song, and when I'm done, I stop recording and I can export the result to an MP3 file. However, I'm noticing a few notes sound "buzzy"/strange/have some unwanted resonances, particularly in the upper registers. I can't really hear these resonances with my ear when I'm playing (the sound plays over the built-in piano speakers), and I actually can't hear them as well when I'm listening to the recording with my nice headphones, but it's very noticeable when listening over laptop speakers or phone speakers. And since lots of people listen on those devices, I want it to sound not-terrible for them :) If I were recording via a microphone or something, I would suspect something physical was going wrong (e.g. something in the room buzzing/vibrating). However, this is just "recording" straight off the line, right? Like it's just recording from the cables I have directly plugged into the piano. So I assume whatever is making those notes sound wrong has nothing to do with the physical room. Here is a short recording that demonstrates the problem: https://drive.google.com/file/d/18LQvlTq2tKUxFhJAFJc_6lCYRQUtbeJE/view?usp=sharing (The file is also attached to this post here.) It is particularly noticeable in the notes I play at 0:03 through 0:09. Does anyone know what might be going wrong with my recording setup? Or, barring that, does anyone know some way to fix those funky/weird resonances in post? (Is there some Garageband tool that can filter those out?) Sorry that I don't really know many technical terms for music recording or anything like that, but I'd really appreciate any help y'all can offer. Thanks! (And, since this is a video game remixing forum: special kudos to anyone who recognizes the melody in my recording!) weird_resonance_for_upload.mp3