Error conceal device and error conceal method

Layer of frame according is processing production change fierce sound, a made of each unhappy electrode. Wherein the echo a echo (a) and a ka a noise (click noise) is very obvious. The invention, the announcing signal detection unit (301) is inputting processing method for judging. For clamping frame, a voice detecting unit (303) is the non-error frame data front and for voice signal and. The is a frame, a copying processing unit (304) for exchanging frame. For non-voice frame; the transient state signals (and signal) detecting unit (305) to position and with the transient state signal detection for angle signal side (signal), and front and a suitable area of the non-mistake frame. The filter assembly analyzing device (306) is generating N innertubes. The innertubes (307) lock and innertube sampling to extrapolate with from processing unit, integrated to the current clamping frame innertube exchanging data. The filter combined The Danyuan (308) to act according to the data is configured the innertube data.