【VOCALOID Original】ECHO【Gumi English】Oct 7, 2014 . My song ECHO featuring Vocaloid Gumi's English voicebank! It's been a while, hasn't it? Nico Nico Douga: .nicovideo.jp/watch/sm24643818 ECHO Mp3: h.تحقيق صدى محطم,Definition: echo checkecho check: A check to determine the integrity of transmission of data, whereby the received data are returned to the source for comparison with the originally transmitted data. Synonym loop check.
تحقيق صدى محطم