[Asterisk-Users] RX gain TX gain

[Lists]

I have an X100p card....and it is hard to hear the person on the other
end. Should I mess with these values? I have heard both yes and no to
this question in the past. If yes, how much louder should I make them?

Thanks,
MIchael

[WipeOut]

Post by Lists
I have an X100p card....and it is hard to hear the person on the other
end. Should I mess with these values? I have heard both yes and no to
this question in the past. If yes, how much louder should I make them?
Thanks,
MIchael

Start with 0.5 and see if its too loud or not loud enough and adjust
accordingly..

[Dan]

Hi,

For me, in order to get the same sound level as for a direct IP/IP call I
have the following values:
rxgain=10
txgain=15

Unfortunately, with this setting there is a little bit of echo.
To get a very small echo but with a lower audio level, the following values
work for me:
rxgain=0.8
txgain=0.8

By the way... how to interpret those vaules?

Thanks,
Dan



----- Original Message -----
From: "WipeOut" <***@onetel.com>
To: <asterisk-***@lists.digium.com>
Sent: Wednesday, October 29, 2003 10:37 AM
Subject: Re: [Asterisk-Users] RX gain TX gain

Post by WipeOut

Post by Lists
I have an X100p card....and it is hard to hear the person on the other
end. Should I mess with these values? I have heard both yes and no to
this question in the past. If yes, how much louder should I make them?
Thanks,
MIchael

Start with 0.5 and see if its too loud or not loud enough and adjust
accordingly..
_______________________________________________
Asterisk-Users mailing list
http://lists.digium.com/mailman/listinfo/asterisk-users

[Jared Smith]

It's my understand that they are db levels. (And, if I remember my
electrical engineering classes from college, a 3db increase effectively
doubles the volume.) I hope that helps...

Jared Smith

Post by Dan
Hi,
For me, in order to get the same sound level as for a direct IP/IP call I
rxgain=10
txgain=15
Unfortunately, with this setting there is a little bit of echo.
To get a very small echo but with a lower audio level, the following values
rxgain=0.8
txgain=0.8
By the way... how to interpret those vaules?
Thanks,
Dan
----- Original Message -----
Sent: Wednesday, October 29, 2003 10:37 AM
Subject: Re: [Asterisk-Users] RX gain TX gain

Post by WipeOut

Post by Lists
I have an X100p card....and it is hard to hear the person on the other
end. Should I mess with these values? I have heard both yes and no to
this question in the past. If yes, how much louder should I make them?
Thanks,
MIchael

Start with 0.5 and see if its too loud or not loud enough and adjust
accordingly..
_______________________________________________
Asterisk-Users mailing list
http://lists.digium.com/mailman/listinfo/asterisk-users

_______________________________________________
Asterisk-Users mailing list
http://lists.digium.com/mailman/listinfo/asterisk-users

[Lists]

Post by WipeOut

Post by Lists
I have an X100p card....and it is hard to hear the person on the other
end. Should I mess with these values? I have heard both yes and no to
this question in the past. If yes, how much louder should I make them?
Thanks,
MIchael

Start with 0.5 and see if its too loud or not loud enough and adjust
accordingly..

I had it at 3, and it made no differanace?

Post by WipeOut
_______________________________________________
Asterisk-Users mailing list
http://lists.digium.com/mailman/listinfo/asterisk-users

[Robert L Mathews]

Post by Jared Smith
It's my understand that they are db levels. (And, if I remember my
electrical engineering classes from college, a 3db increase effectively
doubles the volume.)

As a slight aside on the subject of gain....

It seems that most people asking about RX/TX gain want to increase their
volume. I have the opposite problem: I have a Digium TDM10B FXS card that
generates sound far too loud (in the earpiece) with the RX gain set at
0.0, or commented out.

That is, routing an analog line => X101P => Asterisk => TDM10B => analog
phone is MUCH louder than if I just plug the same phone into the same
analog line directly.

Some people have suggested that using a negative gain will make it
quieter, but I haven't had any luck with this. I *can* make it even
louder by increasing the gain -- if I use "rxgain = 10" on the TDM10B,
for example, it's so loud it sounds like the phone is going to explode --
but using things like "rxgain = -3.0" or "rxgain = -10.0" doesn't make it
any quieter. I can't get it below the "rxgain = 0" value.

I've been meaning to dig around the source and see what's up, but since
it's being discussed... anyone know how to use rxgain to lower the
earpiece volume?

[Dan]

Hi,

----- Original Message -----
From: "Robert L Mathews" <***@tigertech.com>
To: <asterisk-***@lists.digium.com>
Sent: Friday, October 31, 2003 2:01 AM
Subject: Re: [Asterisk-Users] RX gain TX gain

Post by Robert L Mathews
...
That is, routing an analog line => X101P => Asterisk => TDM10B => analog
phone is MUCH louder than if I just plug the same phone into the same
analog line directly.
Some people have suggested that using a negative gain will make it
quieter, but I haven't had any luck with this. I *can* make it even
louder by increasing the gain -- if I use "rxgain = 10" on the TDM10B,
for example, it's so loud it sounds like the phone is going to explode --
but using things like "rxgain = -3.0" or "rxgain = -10.0" doesn't make it
any quieter. I can't get it below the "rxgain = 0" value.

Have you tried to use values like 0.5 or 0.8?

Hope this help. It works for me.

Dan

[Robert L Mathews]

Post by Dan
Have you tried to use values like 0.5 or 0.8?

Hmmm, good suggestion, but it didn't help, unfortunately.

However -- I did some more testing, and found that using extremely large
negative values such as -20.0 does make it noticeably quieter (I hadn't
tried anything below -10.0 before). So I can confirm for others having
such trouble that negative values do work, but you might need to make
them bigger than you think.