search for: 40dbm

...ing to see what mdf is actually doing. Instead of sending: tmp_out = (float)ref[i] - st->y[i+st->frame_size] to the output, I just sent st->y[i+st->frame_size] to see what was being subtracted from the microphone input. When I open this in Audacity, I see a very small signal at about -40dBm. The actual echo in my sample has a power closer to -20dBm. So, when the -40dBm estimated echo is removed from the -20dBm actual echo there is almost no perceived difference in the echo power. I'm sure that there are others on the list that have had good success with the echo cancellation mod...

...> tmp_out = (float)ref[i] - st->y[i+st->frame_size] > > to the output, I just sent > > st->y[i+st->frame_size] > > to see what was being subtracted from the > microphone > > input. When I open this in Audacity, I see a very > > small signal at about -40dBm. The actual echo in > my > > sample has a power closer to -20dBm. So, when the > > -40dBm estimated echo is removed from the -20dBm > > actual echo there is almost no perceived > difference in > > the echo power. > > I'm sure that there are others on the li...

...> > > to the output, I just sent > > > > st->y[i+st->frame_size] > > > > to see what was being subtracted from the > > > microphone > > > > input. When I open this in Audacity, I see a > very > > > > small signal at about -40dBm. The actual echo > in > > > my > > > > sample has a power closer to -20dBm. So, when > the > > > > -40dBm estimated echo is removed from the > -20dBm > > > > actual echo there is almost no perceived > > > difference in > > >...

...t; > st->y[i+st->frame_size] > > > > > > to see what was being subtracted from the > > > > > microphone > > > > > > input. When I open this in Audacity, I > see a > > > very > > > > > > small signal at about -40dBm. The actual > echo > > > in > > > > > my > > > > > > sample has a power closer to -20dBm. So, > when > > > the > > > > > > -40dBm estimated echo is removed from the > > > -20dBm > > > > > > actua...

...y doing. Instead of sending: > tmp_out = (float)ref[i] - st->y[i+st->frame_size] > to the output, I just sent > st->y[i+st->frame_size] > to see what was being subtracted from the microphone > input. When I open this in Audacity, I see a very > small signal at about -40dBm. The actual echo in my > sample has a power closer to -20dBm. So, when the > -40dBm estimated echo is removed from the -20dBm > actual echo there is almost no perceived difference in > the echo power. > I'm sure that there are others on the list that have > had good success...

...st->y[i+st->frame_size] > > > to the output, I just sent > > > st->y[i+st->frame_size] > > > to see what was being subtracted from the > > microphone > > > input. When I open this in Audacity, I see a very > > > small signal at about -40dBm. The actual echo in > > my > > > sample has a power closer to -20dBm. So, when the > > > -40dBm estimated echo is removed from the -20dBm > > > actual echo there is almost no perceived > > difference in > > > the echo power. > > > I'm s...

...t; > to see what was being subtracted from > the > > > > > > > microphone > > > > > > > > input. When I open this in Audacity, > I > > > see a > > > > > very > > > > > > > > small signal at about -40dBm. The > actual > > > echo > > > > > in > > > > > > > my > > > > > > > > sample has a power closer to -20dBm. > So, > > > when > > > > > the > > > > > > > > -40dBm estimated ec...

...I just sent > > > > > st->y[i+st->frame_size] > > > > > to see what was being subtracted from the > > > > microphone > > > > > input. When I open this in Audacity, I see a > > very > > > > > small signal at about -40dBm. The actual echo > > in > > > > my > > > > > sample has a power closer to -20dBm. So, when > > the > > > > > -40dBm estimated echo is removed from the > > -20dBm > > > > > actual echo there is almost no perceived > >...

...acted from > > the > > > > > > > > microphone > > > > > > > > > input. When I open this in Audacity, > > I > > > > see a > > > > > > very > > > > > > > > > small signal at about -40dBm. The > > actual > > > > echo > > > > > > in > > > > > > > > my > > > > > > > > > sample has a power closer to -20dBm. > > So, > > > > when > > > > > > the > > > >...