Need TV Repair Services in Nairobi?
Certified technicians dispatched to you — same day.
Modern smartphones use a secondary microphone — typically positioned near the rear camera or at the top of the device — specifically to capture ambient background noise during calls. The phone's audio processing compares the signal from this noise-cancellation microphone with the primary call microphone and electronically subtracts the common background noise, delivering a cleaner voice signal to the person on the other end of the call. When the noise-cancellation microphone fails, the caller hears significantly more background noise — traffic, office chatter, music, or wind — making calls difficult in any environment that is not completely quiet.
Noise cancellation failure is a subtle fault that many users and even some repair technicians overlook. Because the primary microphone is still functioning, calls can still be made and the user's voice is still audible. The degradation is in audio quality rather than function, and it typically manifests as complaints from frequent callers that your phone is noisy to speak with — rather than as a clear, obvious failure that the phone owner notices directly.
Noise-cancellation microphone faults follow the same pattern as primary microphone faults: blockage by debris, physical damage, a detached flex cable, or corrosion from moisture exposure. Diagnosis involves testing each microphone independently using audio recording tools that capture from specific microphone inputs, confirming that the secondary microphone is producing no signal or a significantly degraded signal compared to the primary.
Prologic Technologies on Luthuli Avenue carries out noise-cancellation microphone diagnosis and repair for all major smartphone brands. The repair involves cleaning, flex cable reconnection, or microphone replacement depending on the specific fault found. Call quality is tested in a simulated noisy environment after repair to confirm that background noise suppression has been restored.
Luthuli Avenue, Nairobi CBD 0723 763 173