Output seems too quiet: Ensure that your input gain on the Scarlett Solo is set correctly. You want it high enough to capture a strong signal but not so high that it clips. Start with a low gain setting and gradually increase it while monitoring your levels.
Clipping when increasing gain: If you're getting clipping even at low gain settings, try moving further away from the microphone or singing/playing less loudly. You can also try enabling the pad on the Scarlett Solo if your microphone has one.
Background noise: If you're hearing background noise when you increase the volume in your audio program, it could be due to a noisy environment or electronic interference. Make sure you're recording in a quiet room and try using a different USB cable or port for your Scarlett Solo.
High-pitched noise: This could be caused by interference from other electronic devices or a ground loop. Try unplugging other devices from the same power outlet or using a ground loop isolator between your Scarlett Solo and your computer.
If these tips don't solve your issues, it might be worth checking the settings in your recording software and experimenting with different
microphone placements.