Even the best can behave oddly. Here is how to fix it.
: A compact (21.6 MB) soundfont featuring samples recorded using FL Studio and the Genny VST to emulate the original console's FM synthesis. Sonic 1, 2, 3K & 3D Soundfont sonic 1 soundfont
Use audio editing software to ensure sounds are correctly trimmed, have the right volume levels, and are in a suitable format for your soundfont. Even the best can behave oddly
: A comprehensive collection (132 MB) that includes instruments from the entire 16-bit era, including Sonic the Hedgehog 1 have the right volume levels