Distant speech recognition

Automatic speech recognition performed on audio captured by microphones positioned at a distance from the speaker (typically 2+ meters), rather than close-talk input from headsets or handheld devices. Distant speech recognition is significantly more challenging than close-talk due to reverberation, background noise, and signal attenuation, but is essential for hands-free accessibility applications like ambient assisted living, smart home control, and emergency call detection where users cannot or should not need to approach a device.