Displaying 6 results from an estimated 6 matches for "play_buf_po".
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play_buf_pos
2009 Mar 11
1
frame_size parameter
Hi Jean,
Thank you for your reply.
Ok... I'm gonna use 'samples per channel' everywhere I see 'samples'...
but what about the 'speex_echo_playback' function ?
it does the following loop:
...
for (i=0;i<st->frame_size;i++)
st->play_buf[st->play_buf_pos+i] = play[i];
...
So... if frame size is 'samples per channel' it will copy only half the play buffer since there are two channels interleaved (supposing the play buffer is stereo of course)
I think it should take into account the number of channels, resulting in something like:
...
for...
2009 Mar 10
2
frame_size parameter
...z I just pass
800 as 'frame_size', but if I switch on using stereo will I
have to put 1600 samples to represent the same 100 ms? I'm
looking at the code of 'speex_echo_playback' and I see the
following snippet:
...
for (i=0;i<st->frame_size;i++)
st->play_buf[st->play_buf_pos+i] = play[i];
...
So... if my buffer is stereo and I put 800 samples as
'frame_size' the previous loop will just copy half of the
'play' buffer data (50 ms) or am I missing something ?
Thanks in advance,
Daniel
2009 Mar 10
0
frame_size parameter
...e', but if I switch on using stereo will I
> have to put 1600 samples to represent the same 100 ms? I'm
> looking at the code of 'speex_echo_playback' and I see the
> following snippet:
>
> ...
> for (i=0;i<st->frame_size;i++)
> st->play_buf[st->play_buf_pos+i] = play[i];
> ...
>
> So... if my buffer is stereo and I put 800 samples as
> 'frame_size' the previous loop will just copy half of the
> 'play' buffer data (50 ms) or am I missing something ?
>
> Thanks in advance,
> Daniel
>
>
>
>
>...
2010 May 26
1
Reseting Echo State
Hello guys,
I want to make echo tail parameter in my app changeable during run-time.
So my question is:f
Should I use speex_echo_state_reset function for this? Just call
speex_echo_state_init function with new values after that?
Or perform a full de-initialization and initialize echo cancellation
with new tail value?
I'm also using preprocessor - does the same apply to it?
2008 Mar 29
0
GCC/ELF Visibility patch
...@@ -587,7 +587,7 @@
#endif
}
-void speex_echo_capture(SpeexEchoState *st, const spx_int16_t *rec, spx_int16_t *out)
+EXPORT void speex_echo_capture(SpeexEchoState *st, const spx_int16_t *rec, spx_int16_t *out)
{
int i;
/*speex_warning_int("capture with fill level ", st->play_buf_pos/st->frame_size);*/
@@ -610,7 +610,7 @@
}
}
-void speex_echo_playback(SpeexEchoState *st, const spx_int16_t *play)
+EXPORT void speex_echo_playback(SpeexEchoState *st, const spx_int16_t *play)
{
/*speex_warning_int("playback with fill level ", st->play_buf_pos/st->fra...
2008 Mar 29
2
GCC/ELF Visibility patch (fwd)
...@@ -587,7 +587,7 @@
#endif
}
-void speex_echo_capture(SpeexEchoState *st, const spx_int16_t *rec, spx_int16_t *out)
+EXPORT void speex_echo_capture(SpeexEchoState *st, const spx_int16_t *rec, spx_int16_t *out)
{
int i;
/*speex_warning_int("capture with fill level ", st->play_buf_pos/st->frame_size);*/
@@ -610,7 +610,7 @@
}
}
-void speex_echo_playback(SpeexEchoState *st, const spx_int16_t *play)
+EXPORT void speex_echo_playback(SpeexEchoState *st, const spx_int16_t *play)
{
/*speex_warning_int("playback with fill level ", st->play_buf_pos/st->fra...