Echo during phone calls on Android devices is a disruptive audio phenomenon characterized by the delayed repetition of the speaker’s voice. This occurs when the outgoing audio from the phone’s speaker or earpiece is picked up by the microphone and retransmitted to the caller. The effect can range from a slight, barely noticeable repetition to a prominent and distracting reverberation, significantly hindering clear communication.
Eliminating this audio feedback is essential for maintaining professional communication, conducting seamless business transactions, and enjoying clear personal conversations. Historically, echo problems were more prevalent due to limitations in hardware and network technology. Modern advancements in signal processing and audio management have mitigated the issue, but it can still arise due to various software and hardware configurations, highlighting the continued relevance of understanding its causes and solutions.
