search for: notch_radius

Hi, The notch filter in AEC is only used to remove DC signal, and the time of convergence is not important, right? If so, I think preset value of notch_radius is too small, and it causes noticeable distortion(freq < 200hz cut). There is a picture in attachment to show signals under different radius in time-domain. By setting notch_radius to 0.999 for all sampling rates, I found better voice effect(distortion), while AEC still working fine. ???...

...low ~200 Hz, but a lot of >people forget that. > > Jean-Marc > >On 2010-03-03 02:40, brant wrote: >> Hi, >> >> The notch filter in AEC is only used to remove DC signal, and the time of convergence is not important, right? >> If so, I think preset value of notch_radius is too small, and it causes noticeable distortion(freq< 200hz cut). >> There is a picture in attachment to show signals under different radius in time-domain. >> By setting notch_radius to 0.999 for all sampling rates, I found better voice effect(distortion), while AEC still >...

...but a lot of > people forget that. > > Jean-Marc > > On 2010-03-03 02:40, brant wrote: > >> Hi, >> >> The notch filter in AEC is only used to remove DC signal, and the time of convergence is not important, right? >> If so, I think preset value of notch_radius is too small, and it causes noticeable distortion(freq< 200hz cut). >> There is a picture in attachment to show signals under different radius in time-domain. >> By setting notch_radius to 0.999 for all sampling rates, I found better voice effect(distortion), while AEC still &g...

...really supposed to have anything below ~200 Hz, but a lot of people forget that. Jean-Marc On 2010-03-03 02:40, brant wrote: > Hi, > > The notch filter in AEC is only used to remove DC signal, and the time of convergence is not important, right? > If so, I think preset value of notch_radius is too small, and it causes noticeable distortion(freq< 200hz cut). > There is a picture in attachment to show signals under different radius in time-domain. > By setting notch_radius to 0.999 for all sampling rates, I found better voice effect(distortion), while AEC still > working...

...t. >> >> Jean-Marc >> >> On 2010-03-03 02:40, brant wrote: >> >>> Hi, >>> >>> The notch filter in AEC is only used to remove DC signal, and the time of convergence is not important, right? >>> If so, I think preset value of notch_radius is too small, and it causes noticeable distortion(freq< 200hz cut). >>> There is a picture in attachment to show signals under different radius in time-domain. >>> By setting notch_radius to 0.999 for all sampling rates, I found better voice effect(distortion), while AEC st...

Hi, I use speex 1.1.12 in my program, but I found a strange thing about Echo canceller. That is, I'll hear an explosion in a certain frequency inputing. And I use the echo canceller in 44100Hz sample rate, disable AGC and Denoise. Can you tell me what's wrong with me? -------------- next part -------------- An HTML attachment was scrubbed... URL: