Hi,<br><br> I am using USB mic with my omap4 panda board.<br><br> Without PA module, using directly Alsa, i found there is no delay but echo is there.<br> But by accessing Alsa through PA module, then there is delay and echo.<br>
Even if I load echo-cancel module, echo is not being reduced.<br><br> Can you suggest any solutions why delay is being introduced when using USB mic with PA module whereas normal mono mic is not giving any delay with PA module.<br>
<br>CPU Usage : for PA = around 25 % without echo module<br> = around 50-60% with echo-module.<br><br> Thanks,<br><br> Regards,<br> Abdul Moiz<br> <br><br><div class="gmail_quote">
On Mon, Aug 1, 2011 at 7:33 PM, Arun Raghavan <span dir="ltr"><<a href="mailto:arun.raghavan@collabora.co.uk">arun.raghavan@collabora.co.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi,<br>
<br>
On Mon, 2011-08-01 at 14:51 +0530, ABDUL MOIZ wrote:<br>
[...]<br>
<div class="im">> Additional debug info:<br>
> gstbaseaudiosrc.c(822): gst_base_audio_src_create<br>
> (): /GstPipeline:pipeline0/GstAlsaSrc:alsasrc0:<br>
> Dropped 135515040 samples. This is most likely because downstream<br>
> can't keep up and is consuming samples too slowly.<br>
><br>
><br>
> And the daemon is getting killed and cpu usage is showing above 170%.<br>
><br>
> Can you please help me in<br>
<br>
</div>Given the messages about the machine not being able to keep up, I<br>
believe there must be some sort of serious misconfiguration of your<br>
system (bad kernel? bad clocking?), because PulseAudio runs just fine on<br>
much less powerful hardware.<br>
<div class="im"><br>
> 1. How module-echo-cancel is dependent on module-suspend-on-idle and<br>
> how to load both the modules in <a href="http://default.pa" target="_blank">default.pa</a> file<br>
<br>
</div>It's not.<br>
<div class="im"><br>
> 2.Why the above gst pipeline is not working and daemon is getting<br>
> killed.<br>
<br>
</div>It should work fine anyway, but why are you using alsasrc/alsasink<br>
instead of pulsesrc/pulsesink?<br>
<font color="#888888"><br>
-- Arun<br>
</font><div><div></div><div class="h5"><br>
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