El volumen de las grabaciones de voz es muy bajo

Low recording volume across multiple voice notes and apps is usually caused by a blocked microphone, a software glitch, or an active background assistant interfering with the audio input. 

Quick Troubleshooting Steps

• Restart your device: A simple reboot clears temporary audio controller glitches. 
• Check for physical blocks: Inspect your phone’s microphone holes (usually at the bottom) for lint, dust, or a thick phone case/screen protector. Gently clean them with a soft, dry brush if needed. 
• Disconnect Bluetooth audio: Ensure your phone isn't secretly routed to a connected Bluetooth headset or car kit that lacks an active microphone stream. 
• Test the native recorder: Open your phone's built-in voice recorder app (like Voice Memos on iOS or Sound Recorder/Pixel Recorder on Android) to see if the low volume persists outside of third-party apps.