[gst-devel] gstreamer low latency audio application

[thx1138]

On 10/27/09 2:01 AM, "Mattias Barthel" <barthel at tid.es> 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
Hello All,

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.