Displaying 4 results from an estimated 4 matches for "echo1".
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2005 Oct 11
2
echo cancellation
...ers signals so they are in sync quite good. the
bit rate I am using is 8000Hz, buffer length is 256 samples and filter
length is 800 samples.
speex initialization:
st = speex_echo_state_init (NN, 800);
den = speex_preprocess_state_init (NN, 8000);
echo cancellation:
speex_echo_cancel (st, ptr, echo1[0], e_buf, noise);
speex_preprocess (den, e_buf, noise);
where ptr is a buffer that was recorded from microphone, echo1[0] is a
buffer that was played on loudspeakers. the delay between ptr and echo1 is
2 buffers (512 samples).
with this configuration I can still hear the echo signal (although...
2005 Oct 11
2
R: echo cancellation
...thank you!
Roberto
-----Messaggio originale-----
Da: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] Per conto
di hs
Inviato: marted? 11 ottobre 2005 10.25
A: speex-dev@xiph.org
Oggetto: Re: [Speex-dev] echo cancellation
> echo cancellation:
> speex_echo_cancel (st, ptr, echo1[0], e_buf, noise); speex_preprocess
> (den, e_buf, noise);
>
> where ptr is a buffer that was recorded from microphone, echo1[0] is a
> buffer that was played on loudspeakers. the delay between ptr and
> echo1 is 2 buffers (512 samples).
> with this configuration I can still he...
2005 Oct 11
0
R: echo cancellation
...originale-----
> Da: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] Per conto
> di hs
> Inviato: marted? 11 ottobre 2005 10.25
> A: speex-dev@xiph.org
> Oggetto: Re: [Speex-dev] echo cancellation
>
> > echo cancellation:
> > speex_echo_cancel (st, ptr, echo1[0], e_buf, noise); speex_preprocess
> > (den, e_buf, noise);
> >
> > where ptr is a buffer that was recorded from microphone, echo1[0] is a
> > buffer that was played on loudspeakers. the delay between ptr and
> > echo1 is 2 buffers (512 samples).
> > with thi...
2006 Jul 23
1
some question about ''observer_field''
...> { :action=>
"echo"} %>
<div id="content1"> content1 </div>
<div id="content2" > content2 </div>
<%= observe_field "content1", :update=>"content2" , :url=> {
:action=>"echo2"} %>
** "echo1" and "echo2" do only rendering the text.
what i expect is that after i click ''test'', ''content1'' wil be changed,
and after that , ''content2'' will be changed too, but what happends in
real
is only a change on ''content1...