Hi, I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback. Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues. I also get the following message on startup of freeswitch: 2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems. I assume its related. Any help will be much appreciated. Cheers Raf
1) Please try the development snapshot. 2) You need a kernel running at 1khz for best results, we do not officially support xen, (openVZ works fine) On Fri, Dec 17, 2010 at 3:19 PM, Rafqat . <rafonline@hotmail.com> wrote:
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
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-- Anthony Minessale II FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire AIM: anthm MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com IRC: irc.freenode.net #freeswitch FreeSWITCH Developer Conference sip:888@conference.freeswitch.org googletalk:conf+888@conference.freeswitch.org pstn:+19193869900
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good). From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue Hi, I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback. Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues. I also get the following message on startup of freeswitch: 2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems. I assume its related. Any help will be much appreciated. Cheers Raf _______________________________________________ FreeSWITCH-users mailing list 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
if you insist to remain on 1.0.6 try it with -vm -nocal cmd line options as i already stated you should try the development snapshot On Fri, Dec 17, 2010 at 3:22 PM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
________________________________ From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
_______________________________________________ FreeSWITCH-users mailing list 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 _______________________________________________ FreeSWITCH-users mailing list 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
-- Anthony Minessale II FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire AIM: anthm MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com IRC: irc.freenode.net #freeswitch FreeSWITCH Developer Conference sip:888@conference.freeswitch.org googletalk:conf+888@conference.freeswitch.org pstn:+19193869900
I will try the dev snapshot. cheers Raf
Date: Fri, 17 Dec 2010 15:28:49 -0600 From: anthony.minessale@gmail.com To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue
if you insist to remain on 1.0.6 try it with -vm -nocal cmd line options as i already stated you should try the development snapshot
On Fri, Dec 17, 2010 at 3:22 PM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
________________________________ From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
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-- Anthony Minessale II
FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire
AIM: anthm MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com IRC: irc.freenode.net #freeswitch
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Improve the kernel and in your situation you will most likely improve your audio. You can't expect perfect audio when the thread handling RTP is waking up later than its designated time (after sleeping for the codec timing). The switch tests for the possibility of this issue on startup when it calibrates your clock offset ... thus it warned you :) "-nocal" will simply skip the process of recognizing and warning that your kernel timer is slow, but will not alter performance in your situation (unless I am missing something) On Fri, Dec 17, 2010 at 4:30 PM, Rafqat . <rafonline@hotmail.com> wrote:
I will try the dev snapshot.
cheers
Raf
Date: Fri, 17 Dec 2010 15:28:49 -0600 From: anthony.minessale@gmail.com
To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue
if you insist to remain on 1.0.6 try it with -vm -nocal cmd line options as i already stated you should try the development snapshot
On Fri, Dec 17, 2010 at 3:22 PM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
________________________________ From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen
server).
I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
_______________________________________________ FreeSWITCH-users mailing list 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 _______________________________________________ FreeSWITCH-users mailing list 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
-- Anthony Minessale II
FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire
AIM: anthm MSN:anthony_minessale@hotmail.com <MSN%3Aanthony_minessale@hotmail.com> GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com<PAYPAL%3Aanthony.minessale@gmail.com> IRC: irc.freenode.net #freeswitch
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I upgraded to dev snapshot (still on Xen) - still had audio issues. I got rid of xen server and installed centos 5.5 and freeswitch only - timer frequency warning disappeared - still felt audio was not what it should be. What I still dont understand is why when i playback my recorded voicemail messages the quality is good. Sometimes I even have issues leaving a message after the voicemail tone, the IVR seems to think i have ended recording the message before even starting. The voicemail tone itself can be very high pitch at times. Any help will be much appreciated. Chris - can you please point me to some docs on how to improve my kernel (sorry but i am newbie to unix). Cheers Raf Date: Fri, 17 Dec 2010 18:05:09 -0500 From: chris@cloudtel.com To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue Improve the kernel and in your situation you will most likely improve your audio. You can't expect perfect audio when the thread handling RTP is waking up later than its designated time (after sleeping for the codec timing). The switch tests for the possibility of this issue on startup when it calibrates your clock offset ... thus it warned you :) "-nocal" will simply skip the process of recognizing and warning that your kernel timer is slow, but will not alter performance in your situation (unless I am missing something) On Fri, Dec 17, 2010 at 4:30 PM, Rafqat . <rafonline@hotmail.com> wrote: I will try the dev snapshot. cheers Raf
Date: Fri, 17 Dec 2010 15:28:49 -0600 From: anthony.minessale@gmail.com
To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue
if you insist to remain on 1.0.6 try it with -vm -nocal cmd line options as i already stated you should try the development snapshot
On Fri, Dec 17, 2010 at 3:22 PM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
________________________________
From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org
Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server).
I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However,
I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which
doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of
4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
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http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
-- Anthony Minessale II
FreeSWITCH http://www.freeswitch.org/
ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire
AIM: anthm
MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com
IRC: irc.freenode.net #freeswitch
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googletalk:conf+888@conference.freeswitch.org pstn:+19193869900
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By "improve" your kernel I just meant resolve the timer frequency issue or even better stop using xen altogether until you figure out why you have audio issues. I assume you mean the voicemail messages sound good when you listen to them as an attachment in your email, and that your audio quality is always bad in real time from the server. Spitting an audio file into a codec bit by bit in real time requires decent precision to pull off ... recording each frame of audio you recieve into a file does not require precision timing. That is why the switch could sound poor and create perfect recordings ... although it is only a guess. Are you testing with the phone and switch on the same LAN? Do you have physical access to the switch system and is it a regular old unvirtualized OS now? There seems to be either an issue with your FS system, or an issue with the network conditions between you and it. Sadly, I have not encountered enough RTP quality issues to be good at troubleshooting them or I might have great advice at this point. I just happen to be bored and feeling holiday helpful :) On Sat, Dec 18, 2010 at 9:11 AM, Rafqat . <rafonline@hotmail.com> wrote:
I upgraded to dev snapshot (still on Xen) - still had audio issues.
I got rid of xen server and installed centos 5.5 and freeswitch only - timer frequency warning disappeared - still felt audio was not what it should be.
What I still dont understand is why when i playback my recorded voicemail messages the quality is good.
Sometimes I even have issues leaving a message after the voicemail tone, the IVR seems to think i have ended recording the message before even starting. The voicemail tone itself can be very high pitch at times.
Any help will be much appreciated.
Chris - can you please point me to some docs on how to improve my kernel (sorry but i am newbie to unix).
Cheers
Raf
------------------------------ Date: Fri, 17 Dec 2010 18:05:09 -0500 From: chris@cloudtel.com
To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue
Improve the kernel and in your situation you will most likely improve your audio. You can't expect perfect audio when the thread handling RTP is waking up later than its designated time (after sleeping for the codec timing). The switch tests for the possibility of this issue on startup when it calibrates your clock offset ... thus it warned you :)
"-nocal" will simply skip the process of recognizing and warning that your kernel timer is slow, but will not alter performance in your situation (unless I am missing something)
On Fri, Dec 17, 2010 at 4:30 PM, Rafqat . <rafonline@hotmail.com> wrote:
I will try the dev snapshot.
cheers
Raf
Date: Fri, 17 Dec 2010 15:28:49 -0600 From: anthony.minessale@gmail.com
To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue
if you insist to remain on 1.0.6 try it with -vm -nocal cmd line options as i already stated you should try the development snapshot
On Fri, Dec 17, 2010 at 3:22 PM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
________________________________ From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen
server).
I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
_______________________________________________ FreeSWITCH-users mailing list 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 _______________________________________________ FreeSWITCH-users mailing list 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
-- Anthony Minessale II
FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire
AIM: anthm MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com IRC: irc.freenode.net #freeswitch
FreeSWITCH Developer Conference sip:888@conference.freeswitch.org googletalk:conf+888@conference.freeswitch.org<googletalk:conf%2B888@conference.freeswitch.org> pstn:+19193869900
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On Fri, Dec 17, 2010 at 4:22 PM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
Between phones, when the media is peer to peer will be fine. When the media is anchored to a media server running on hardware you need to ensure the media server is not having any latency issues. Hence Anthony's 2 points. Media services (any platform/engine) having any latency or jitter issues (due to timing especially) will result in what you have experienced. Tony
Hi , Do you have issues only with hearing the IVR originating from the switch ? Phone to phone works fine when RTP pass through is enabled ? which codec gets negotiated when IVR plays and what are the IVR file properties which is negotiated? Your voice mail gets recorded properly means the RTP is passing well to the switch ... Regads Sam On Sat, Dec 18, 2010 at 2:52 AM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
------------------------------ From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
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Hi Sam Sorry for the late reply. My issue is with only hearing the IVR originating from the switch. Phone call debug: 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[G7221:115:32000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[G7221:107:16000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[G722:9:8000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[PCMU:0:8000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:2354 Set Codec sofia/internal/1006@192.168.0.10 PCMU/8000 20 ms 160 samples . . . . EXECUTE sofia/internal/1006@192.168.0.10 sleep(1000) 2010-12-19 18:28:22.618376 [DEBUG] sofia.c:4153 Channel sofia/internal/1006@192.168.0.10 entering state [ready][200] 2010-12-19 18:28:22.658376 [DEBUG] switch_rtp.c:2066 Correct ip/port confirmed. EXECUTE sofia/internal/1006@192.168.0.10 voicemail(check default 192.168.0.10) 2010-12-19 18:28:23.618435 [DEBUG] switch_ivr_play_say.c:63 No language specified - Using [en] 2010-12-19 18:28:23.818446 [DEBUG] switch_ivr_play_say.c:63 No language specified - Using [en] 2010-12-19 18:28:23.818446 [DEBUG] switch_ivr_play_say.c:244 Handle play-file:[voicemail/vm-enter_id.wav] (en:en) 2010-12-19 18:28:23.818446 [DEBUG] switch_ivr_play_say.c:1152 Codec Activated L16@8000hz 1 channels 20ms 2010-12-19 18:28:25.778567 [DEBUG] switch_ivr_play_say.c:1444 done playing file 2010-12-19 18:28:25.878572 [DEBUG] switch_ivr_play_say.c:244 Handle say:[#] (en:en) 2010-12-19 18:28:25.878572 [DEBUG] switch_ivr_play_say.c:1152 Codec Activated L16@8000hz 1 channels 20ms 2010-12-19 18:28:26.298600 [DEBUG] switch_ivr_play_say.c:1444 done playing file The phone when playing 'vm-enter_id.wav' seems to jump in volume (initially low volume then high). It also makes a high pitch creaking type noise after 'say:[#] '. Also when it asks me to leave a message after the tone, it immediatley says 'my message was too short' without allowing me to record anything. Could the phone be sending an echo which causes freeeswitch to think i have ended my recording? I was wondering if i should invest in some new phones? Any recommendations? Cheers Raf Date: Sun, 19 Dec 2010 13:10:41 +0530 From: u2nsam@gmail.com To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue Hi , Do you have issues only with hearing the IVR originating from the switch ? Phone to phone works fine when RTP pass through is enabled ? which codec gets negotiated when IVR plays and what are the IVR file properties which is negotiated? Your voice mail gets recorded properly means the RTP is passing well to the switch ... Regads Sam On Sat, Dec 18, 2010 at 2:52 AM, Rafqat . <rafonline@hotmail.com> wrote: btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good). From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue Hi, I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback. Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues. I also get the following message on startup of freeswitch: 2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems. I assume its related. Any help will be much appreciated. Cheers Raf _______________________________________________ FreeSWITCH-users mailing list 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 _______________________________________________ FreeSWITCH-users mailing list 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 _______________________________________________ FreeSWITCH-users mailing list 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
Try using a IVR sound file with 64kbps instead of 128kbps and check. Regds Sam On Mon, Dec 20, 2010 at 12:20 AM, Rafqat . <rafonline@hotmail.com> wrote:
Hi Sam
Sorry for the late reply.
My issue is with only hearing the IVR originating from the switch.
Phone call debug:
2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[G7221:115:32000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[G7221:107:16000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[G722:9:8000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:3585 Audio Codec Compare [PCMU:0:8000:20]/[PCMU:0:8000:20] 2010-12-19 18:47:16.057209 [DEBUG] sofia_glue.c:2354 Set Codec sofia/internal/1006@192.168.0.10 PCMU/8000 20 ms 160 samples . . . . EXECUTE sofia/internal/1006@192.168.0.10 sleep(1000) 2010-12-19 18:28:22.618376 [DEBUG] sofia.c:4153 Channel sofia/internal/ 1006@192.168.0.10 entering state [ready][200] 2010-12-19 18:28:22.658376 [DEBUG] switch_rtp.c:2066 Correct ip/port confirmed. EXECUTE sofia/internal/1006@192.168.0.10 voicemail(check default 192.168.0.10) 2010-12-19 18:28:23.618435 [DEBUG] switch_ivr_play_say.c:63 No language specified - Using [en] 2010-12-19 18:28:23.818446 [DEBUG] switch_ivr_play_say.c:63 No language specified - Using [en] 2010-12-19 18:28:23.818446 [DEBUG] switch_ivr_play_say.c:244 Handle play-file:[voicemail/vm-enter_id.wav] (en:en) 2010-12-19 18:28:23.818446 [DEBUG] switch_ivr_play_say.c:1152 Codec Activated L16@8000hz 1 channels 20ms 2010-12-19 18:28:25.778567 [DEBUG] switch_ivr_play_say.c:1444 done playing file 2010-12-19 18:28:25.878572 [DEBUG] switch_ivr_play_say.c:244 Handle say:[#] (en:en) 2010-12-19 18:28:25.878572 [DEBUG] switch_ivr_play_say.c:1152 Codec Activated L16@8000hz 1 channels 20ms 2010-12-19 18:28:26.298600 [DEBUG] switch_ivr_play_say.c:1444 done playing file
The phone when playing 'vm-enter_id.wav' seems to jump in volume (initially low volume then high). It also makes a high pitch creaking type noise after 'say:[#] '.
Also when it asks me to leave a message after the tone, it immediatley says 'my message was too short' without allowing me to record anything. Could the phone be sending an echo which causes freeeswitch to think i have ended my recording?
I was wondering if i should invest in some new phones? Any recommendations?
Cheers
Raf
------------------------------ Date: Sun, 19 Dec 2010 13:10:41 +0530 From: u2nsam@gmail.com
To: freeswitch-users@lists.freeswitch.org Subject: Re: [Freeswitch-users] audio quality issue
Hi ,
Do you have issues only with hearing the IVR originating from the switch ? Phone to phone works fine when RTP pass through is enabled ? which codec gets negotiated when IVR plays and what are the IVR file properties which is negotiated? Your voice mail gets recorded properly means the RTP is passing well to the switch ...
Regads Sam
On Sat, Dec 18, 2010 at 2:52 AM, Rafqat . <rafonline@hotmail.com> wrote:
btw. I have no audio issues when making calls between phones through freeswitch (voice quality is very good).
------------------------------ From: rafonline@hotmail.com To: freeswitch-users@lists.freeswitch.org Date: Fri, 17 Dec 2010 21:19:11 +0000 Subject: [Freeswitch-users] audio quality issue
Hi,
I recently installed freeswitch 1.0.6 on centos 5.5 (hosted on xen server). I feel as if the audio quality is not as good as what it should be (6-7 out of 10). This is apparent in calling the default voicemail IVR, sometimes I have issues leaving a message, sometimes I hear some weird noises. However, I have no issues with the quality of the recorded voicemail message I leave, it sounds fine on playback.
Is this an issue with my phones (Flexor 500)? I have a softphone which doesn't seem as bad but still has issues.
I also get the following message on startup of freeswitch:
2010-12-17 21:17:39.138958 [WARNING] switch_time.c:206 Timer resolution of 4000 microseconds detected! Do you have your kernel timer frequency set to lower than 1,000Hz? You may experience audio problems.
I assume its related.
Any help will be much appreciated.
Cheers
Raf
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participants (5)
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Anthony Minessale
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Chris Burns
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Rafqat .
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Sam
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Tony Graziano