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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110304/6c1de41b/attachment.htm>
_____ 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110304/82381222/attachment.htm>
Thank you! How can I reduce the RXgain? Am 04.03.2011 um 15:21 schrieb "Danny Nicholas" <danny at debsinc.com>:> > 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: > > reduce RXgain ? assuming your are using Record() command > use sox to reduce the volume; something like sox ?v .8 file1.wav file2.wav > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110304/d1a703ac/attachment.htm>
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.
_____
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.
_____
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>:
_____
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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it should work for sip channel too. I recorded the downlink channel in wav-format. Does the rx or txgain ajusting only work with alaw or ulaw? 2011/3/7 Faisal Hanif <faisal at vopium.com>> 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. > > > ------------------------------ > > *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. > > > ------------------------------ > > *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>: > > ------------------------------ > > *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 > > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110307/47ec4cb2/attachment.htm>
You could always just use sox to adjust the levels -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110307/317fb788/attachment.htm>