Re: [Freeswitch-users] Loud whilte noise during sleep
** Disclaimer: this is probably a really bad idea ** Just in case this is frustrating anyone else: Silence is generated by the switch_generate_sln_silence function(s) in switch_resample.c, 'divisor' is the variable which determines the noise volume - the higher the value, the lower the noise volume. So, a quick fix for this problem would be to hard-code a value like 1400 for 'divisor' within those functions, by adding divisor = 1400 before the for loop and recompiling. This will affect ALL silence generated by FreeSwitch so it would be better to find where this is set within the sleep function so it only affects noise generated there. Better yet, if there's a way to accomplish this without hacking the code, (i.e. a variable that can be set), then by all means do that instead (and let me know what it is). Setting send_silence_when_idle to the desired value curbs the noise during sleep but it sends silence during ringback too, at least in my configuration here. Regards, Phil Quesinberry Q Systems Engineering, Inc. Electronic Controls and Embedded Systems Development (410) 969-8002 http://www.qsystemsengineering.com
Which revision of the code are you looking at? The sleep sends dummy frames unless you set that send_silence_when_idle var, if its not set its probably not sending anything. You can see in the code that unless that var is set it wont be generating anything. On Thu, May 17, 2012 at 11:13 AM, Phil Quesinberry <philq@qsystemsengineering.com> wrote:
** Disclaimer: this is probably a really bad idea **
Just in case this is frustrating anyone else:
Silence is generated by the switch_generate_sln_silence function(s) in switch_resample.c, 'divisor' is the variable which determines the noise volume - the higher the value, the lower the noise volume.
So, a quick fix for this problem would be to hard-code a value like 1400 for 'divisor' within those functions, by adding divisor = 1400 before the for loop and recompiling. This will affect ALL silence generated by FreeSwitch so it would be better to find where this is set within the sleep function so it only affects noise generated there.
Better yet, if there's a way to accomplish this without hacking the code, (i.e. a variable that can be set), then by all means do that instead (and let me know what it is).
Setting send_silence_when_idle to the desired value curbs the noise during sleep but it sends silence during ringback too, at least in my configuration here.
Regards,
Phil Quesinberry
Q Systems Engineering, Inc.
Electronic Controls and Embedded Systems Development
(410) 969-8002
http://www.qsystemsengineering.com
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If i remember correctly, the default divisor used when setting send_silence_when_idle=true is 1400. It sounds to me that you are using a a very old version or something? I've never had any problems with loud white noice, and I use send_silence quite alot. /Peter 17 maj 2012 kl. 18:18 skrev "Phil Quesinberry" <philq@qsystemsengineering.com<mailto:philq@qsystemsengineering.com>>: ** Disclaimer: this is probably a really bad idea ** Just in case this is frustrating anyone else: Silence is generated by the switch_generate_sln_silence function(s) in switch_resample.c, 'divisor' is the variable which determines the noise volume - the higher the value, the lower the noise volume. So, a quick fix for this problem would be to hard-code a value like 1400 for 'divisor' within those functions, by adding divisor = 1400 before the for loop and recompiling. This will affect ALL silence generated by FreeSwitch so it would be better to find where this is set within the sleep function so it only affects noise generated there. Better yet, if there's a way to accomplish this without hacking the code, (i.e. a variable that can be set), then by all means do that instead (and let me know what it is). Setting send_silence_when_idle to the desired value curbs the noise during sleep but it sends silence during ringback too, at least in my configuration here. Regards, Phil Quesinberry Q Systems Engineering, Inc. Electronic Controls and Embedded Systems Development (410) 969-8002 http://www.qsystemsengineering.com !DSPAM:4fb521ba32762069614621! _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org<mailto:consulting@freeswitch.org> http://www.freeswitchsolutions.com FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com Join Us At ClueCon - Aug 7-9, 2012 FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org<mailto:FreeSWITCH-users@lists.freeswitch.org> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org !DSPAM:4fb521ba32762069614621!
participants (3)
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Anthony Minessale
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Peter Olsson
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Phil Quesinberry