Hi CorgoKing,
Welcome to Apple Support Communities. With the distorted sound from the speaker on your iPhone, there are steps available that can help. We recommend to follow these steps:
1. Remove all screen protectors, films, or cases from your device.
2. Check the speaker opening to see if it's blocked or dirty. On iPhone only, make sure that the receiver isn't blocked or dirty.
3. If necessary, clean the speaker or receiver opening with a small, soft-bristled brush. Make sure that the brush is clean and dry.
4. Go to Settings > Sounds (or Settings > Sounds & Haptics), and drag the Ringer and Alerts slider back and forth a few times. If you don't hear any sound, or if your speaker button on the Ringer and Alerts slider is dimmed, your speaker might need service.
5. If you hear sound, try making a call with your iPhone and turn on speakerphone. On iPad or iPod touch, make a FaceTime call. If you still can't hear, or hear static or crackling, then your network or reception could be the issue. Try to call again later, or from a different location.
These steps are available in this helpful article for you to reference: If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support
If that doesn't help, you'll want to contact Apple Support to review your service options. You can contact them through this link here: Apple Support
Best regards.