A robotic or choppy mic sound is almost always a bandwidth or processing issue, not a hardware defect. On video calls, robotic audio means packets are being lost or arriving out of order — run a network test to check for high jitter or packet loss. Switch to Ethernet if possible. If the robotic sound happens in all apps (not just calls), check your CPU usage — an overloaded processor can't encode audio fast enough, causing choppy output. Close resource-heavy apps and background processes. On Bluetooth headsets, robotic sound often means the connection is degraded: move closer to your computer, remove interference from other Bluetooth devices, and re-pair the headset. On Windows, disable audio enhancements: right-click speaker icon > Sound settings > your mic > Properties > Advanced > uncheck "Enable audio enhancements." Sample rate mismatches can also cause artifacts — set your mic to 48000 Hz in Advanced properties.