[jitsi-users] I can hear myself in the other person's computer


#1

I'm having a problem with Jitsi. I chat with a friend of mine. It works fine for him. He only hears me, and his own voice, as it should be. However, I hear myself, him (as it should be), but I *also hear* my own voice repeated to me from his computer, i.e. my voice that comes out of his speaker and goes into his mic and thus back to me. This is only a "single" echo, i.e. I only hear my voice repeated once -- not multiple times over and over again like a real echo.

Any ideas? I asked my friend to reduce the volume of his computer, but it didn't have an effect.

The strange thing is: Everything works fine when I chat with ANOTHER friend of mine who uses Jitsi. There neither of us hears any echos and everything works great.

Also, Skype works fine in this respect for everybody. Does Skype some echo-cancellation mechanisms that Jitsi doesn't?


#2

На 18 април 2012, 18:34, Disqus User <disqususer@live.com> написа:

I'm having a problem with Jitsi. I chat with a friend of mine. It works fine for him. He only hears me, and his own voice, as it should be. However, I hear myself, him (as it should be), but I *also hear* my own voice repeated to me from his computer, i.e. my voice that comes out of his speaker and goes into his mic and thus back to me. This is only a "single" echo, i.e. I only hear my voice repeated once -- not multiple times over and over again like a real echo.

Any ideas? I asked my friend to reduce the volume of his computer, but it didn't have an effect.

As an alternative to reducing the volume of his computer, your friend
will surely fix the echo by using headphones.

The strange thing is: Everything works fine when I chat with ANOTHER friend of mine who uses Jitsi. There neither of us hears any echos and everything works great.

I don't find it strange. Your other friend likely has a (completely)
different computer and possibly establishes the call in a different
environment/room with different acoustic characteristics.

Also, Skype works fine in this respect for everybody. Does Skype some echo-cancellation mechanisms that Jitsi doesn't?

Jitsi does implement echo cancellation and uses it by default. It is
obviously a different implementation than the one available in Skype.
It also perform differently on different operating systems on one and
the same computer. You'll likely experience best results on Mac OS X,
average results on Windows and likely worse results on Linux. We have
it on our TODO list to work on an additional echo cancellation
implementation.


#3

Also realize that echo in an by itself is not caused by voice over IP. it
is either an analog imbalance or audio out on the far end being fed back
into audio in.

Some good USB mic/headphones on the far end will help.

Mike

···

On Wed, Apr 18, 2012 at 1:36 PM, Lyubomir Marinov <lubo@jitsi.org> wrote:

На 18 април 2012, 18:34, Disqus User <disqususer@live.com> написа:
> I'm having a problem with Jitsi. I chat with a friend of mine. It works
fine for him. He only hears me, and his own voice, as it should be.
However, I hear myself, him (as it should be), but I *also hear* my own
voice repeated to me from his computer, i.e. my voice that comes out of his
speaker and goes into his mic and thus back to me. This is only a "single"
echo, i.e. I only hear my voice repeated once -- not multiple times over
and over again like a real echo.
>
> Any ideas? I asked my friend to reduce the volume of his computer, but
it didn't have an effect.

As an alternative to reducing the volume of his computer, your friend
will surely fix the echo by using headphones.

> The strange thing is: Everything works fine when I chat with ANOTHER
friend of mine who uses Jitsi. There neither of us hears any echos and
everything works great.

I don't find it strange. Your other friend likely has a (completely)
different computer and possibly establishes the call in a different
environment/room with different acoustic characteristics.

> Also, Skype works fine in this respect for everybody. Does Skype some
echo-cancellation mechanisms that Jitsi doesn't?

Jitsi does implement echo cancellation and uses it by default. It is
obviously a different implementation than the one available in Skype.
It also perform differently on different operating systems on one and
the same computer. You'll likely experience best results on Mac OS X,
average results on Windows and likely worse results on Linux. We have
it on our TODO list to work on an additional echo cancellation
implementation.

--
There are 10 kinds of people in this world, those who understand binary and
those who don't.

mpicher@gmail.com
blog: http://www.sipxecs.info
call: sip:mpicher@sipxecs.info


#4

Meanwhile, you can try using third-party echo cancellation. There are several options out there. I think that for Windows platform the most common software is SoliCall Pro.

···

________________________________
From: Michael Picher <mpicher@gmail.com>
To: users@jitsi.java.net
Cc: disqususer@live.com
Sent: Wednesday, April 18, 2012 8:42 PM
Subject: [jitsi-users] Re: I can hear myself in the other person's computer

Also realize that echo in an by itself is not caused by voice over IP. it is either an analog imbalance or audio out on the far end being fed back into audio in.

Some good USB mic/headphones on the far end will help.

Mike

On Wed, Apr 18, 2012 at 1:36 PM, Lyubomir Marinov <lubo@jitsi.org> wrote:

На 18 април 2012, 18:34, Disqus User <disqususer@live.com> написа:

I'm having a problem with Jitsi. I chat with a friend of mine. It works fine for him. He only hears me, and his own voice, as it should be. However, I hear myself, him (as it should be), but I *also hear* my own voice repeated to me from his computer, i.e. my voice that comes out of his speaker and goes into his mic and thus back to me. This is only a "single" echo, i.e. I only hear my voice repeated once -- not multiple times over and over again like a real echo.

Any ideas? I asked my friend to reduce the volume of his computer, but it didn't have an effect.

As an alternative to reducing the volume of his computer, your friend
will surely fix the echo by using headphones.

The strange thing is: Everything works fine when I chat with ANOTHER friend of mine who uses Jitsi. There neither of us hears any echos and everything works great.

I don't find it strange. Your other friend likely has a (completely)
different computer and possibly establishes the call in a different
environment/room with different acoustic characteristics.

Also, Skype works fine in this respect for everybody. Does Skype some echo-cancellation mechanisms that Jitsi doesn't?

Jitsi does implement echo cancellation and uses it by default. It is
obviously a different implementation than the one available in Skype.
It also perform differently on different operating systems on one and
the same computer. You'll likely experience best results on Mac OS X,
average results on Windows and likely worse results on Linux. We have
it on our TODO list to work on an additional echo cancellation
implementation.

--
There are 10 kinds of people in this world, those who understand binary and those who don't.

mpicher@gmail.com
blog: http://www.sipxecs.info
call: sip:mpicher@sipxecs.info