Hello,
I am quite new to the framework of gstreamer and I am looking to implement an application that needs the lowest possible latency for an echo canceling audio application. Is this possible to do? Does gstreamer instrocduce any latency in itself? Can alsasrc/alsasink element be used in this case? Best, Mattias -- Mattias Frank Barthel Vía Augusta 177 08021 Barcelona (Spain) T. 0034-93-365-3309 TELEFÓNICA R&D ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
On 10/27/09 2:01 AM, "Mattias Barthel" <[hidden email]> wrote:
> Hello, > > I am quite new to the framework of gstreamer and I am looking to > implement an application that needs > the lowest possible latency for an echo canceling audio application. > > Is this possible to do? Does gstreamer instrocduce any latency in itself? > Can alsasrc/alsasink element be used in this case? > > Best, > > Mattias I am building Gstreamer tests for stereo & multichannel audio applications using Linux on Arm 11 and Cortex 8 devices we are building. What I am trying to determine is how to measure latency through the entire system. I would like to perform DSP type of operations on ARM 11 and Cortex A8 devices and need to have some kind of quideline on realtime latency incurred. The NEON SIMD engine latency under a Gstreamer application would be interesting as well. If anyone has some pointers or code examples it would be appreciated. Regards, Terry Shultz DSP and ARM Audio Technology Freescale Inc. ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
In reply to this post by mattias-12
Mattias Barthel schrieb:
> Hello, > > I am quite new to the framework of gstreamer and I am looking to > implement an application that needs > the lowest possible latency for an echo canceling audio application. > > Is this possible to do? Does gstreamer instrocduce any latency in itself? > Can alsasrc/alsasink element be used in this case? You should be able to do that. If both input and output are on the same soundcard it could work. If they are different devices it is more difficult to sync. Elements can report the latency they introduce. Stefan > > Best, > > Mattias > ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ gstreamer-devel mailing list [hidden email] https://lists.sourceforge.net/lists/listinfo/gstreamer-devel |
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