结合回声消除和语音增强方法的double talk算法，能在噪声环境下定出语音的端点-light echo cancellation and voice enhancement method of double talk algorithm can be noisy environment set voice endpoint

DTalk v3 Delphi 7 Evaluation version, voice and speech vcl-DTalk v3 Delphi 7 Evaluation version, voice and speech vcl