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<body class='hmmessage'><div dir='ltr'>Hi all,<div><br></div><div>I have been trying to impelement echo cancellation on STM32F4 Discovery board (having ARM based uC).</div><div>In my project, I simply initialized the echo_state by speex_echo_state_init() by using frame_size 160, filter_length 800 (at 8kHz Sampling rate.) </div><div>Then, I simply used speex_echo_cancellation() function in where i am getting sound. </div><div>However, I have recently realised that output_frame has been always same without any relation with input_frame and echo_frame.</div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;">What can be wrong in my project? Any help will be appreciated.</span></div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;">Best regards,</span></div><div><span style="font-size: 12pt;"> </span></div> </div></body>
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