[asterisk-users] Loudness of recorded wav-audio

[Faisal Hanif]

This settings are for ISDN configurations I think.

 

From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Felix Dong
Sent: Monday, March 07, 2011 6:07 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Loudness of recorded wav-audio

 

I tried to ajust the tx- and rxgain for the sip peer in sip.conf. And restarted the asterisk. But it takes no effect. Any suggestion?



2011/3/4 Danny Nicholas <danny at debsinc.com>

Defaults are 0.0 (leave volume unchanged)  +values make volume louder, - softer.

 

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From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Felix Dong
Sent: Friday, March 04, 2011 8:55 AM


To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Loudness of recorded wav-audio

 

Could yoz tell me the default value of rxgain or txgain, if there is no rxgain or txgain in conf-data defined?

Von meinem iPad gesendet


Am 04.03.2011 um 15:34 schrieb "Danny Nicholas" <danny at debsinc.com>:

In sip.conf, add rxgain=-4.0 to the peer.  This (feel free to correct) should reduce the incoming volume by 4 decibels. You’ll have to do a “sip reload” for this to take effect.

 

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From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Felix Dong
Sent: Friday, March 04, 2011 8:33 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] Loudness of recorded wav-audio

 

Thank you! How can I reduce the RXgain?


Am 04.03.2011 um 15:21 schrieb "Danny Nicholas" <danny at debsinc.com>:

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From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Felix Dong
Sent: Friday, March 04, 2011 2:31 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] Loudness of recorded wav-audio

 

Hello,

 

I sent a wav-audio to Asterisk though SIP and ISDN channels and recorded it in wav-audio at the Asterisk server. I found the loudness level of the recorded audio was too high comparing with the orginal audio. How can I ajust it, so that there will be no amplifier used for recording.

Thanks a lot.


best regards

Felix 

 

two options are:

1.	reduce RXgain – assuming your are using Record() command
2.	use sox to reduce the volume;  something like sox –v .8 file1.wav file2.wav

 

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