Re: [Linphone-developers] ec_delay / ec_tail_len relationship

[AMIR TECH]

i can call

your from

can you contact skype

you have whatsapp

iam not a doveloper

On Thu, Feb 1, 2018 at 2:56 PM, Guillermo Rodriguez Garcia <address@hidden> wrote:

Hello all,

I am fine tuning the echo canceller configuration in linphone for a custom hardware board. I am trying to use the test_ecc tool to estimate the hardware delay, but have found that the measured delay depends on the ec_tail_len value. If ec_tail_len is increased, the measured ec_delay decreases, and vice-versa:

Indeed, the documentation (http://www.linphone.org/technical-corner/linphone/documentation) states the following: 

#Use this when you have a fixed latency in the sound hardware.
#This allows to reduce the tail length of the echo canceller, which speeds up convergence
#and reduces complexity of computations.
ec_delay=0

#Tail length of echo canceller in milliseconds.
#Ideally it should be no more than the expected duration of the echo.
ec_tail_len=60

So: What is the recommended process to come with optimal values for these two parameters?

Thank you,

Guillermo Rodriguez Garcia
address@hidden

_______________________________________________
Linphone-developers mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/linphone-developers