This is bare metal running CentOS 6.4. Linux 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 16 On-line CPU(s) list: 0-15 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 26 Stepping: 5 CPU MHz: 2261.023 BogoMIPS: 4521.29 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 8192K NUMA node0 CPU(s): 0,2,4,6,8,10,12,14 NUMA node1 CPU(s): 1,3,5,7,9,11,13,15 On Wed, Sep 30, 2015 at 6:00 PM Ken Rice <krice@freeswitch.org> wrote:
You should really be testing the latest… not to mention there are multiple bugs resolved since 1.4.19
*From:* freeswitch-users-bounces@lists.freeswitch.org [mailto: freeswitch-users-bounces@lists.freeswitch.org] *On Behalf Of *Danny Gershman *Sent:* Wednesday, September 30, 2015 4:54 PM *To:* FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org> *Subject:* Re: [Freeswitch-users] Audio delays and jitter
Currently tested with 1.4.19
On Wed, Sep 30, 2015 at 5:23 PM Brian West <brian@freeswitch.org> wrote:
Which revision of FreeSWITCH have you tested with?
On Wed, Sep 30, 2015 at 4:15 PM, Danny Gershman <danny.gershman@gmail.com> wrote:
We are using the OPUS codec with Chrome and WebRTC to make SIP calls into FS conferences. We have packet captures at the edge of network that sound clear, but when they get to FreeSWITCH they sound distorted via delays and clipping.
I've tried several combinations of jitterbuffer settings, disabled/enabling RTP timers, conference. I have a mechanism I use in which I replay the RTP packets using SIPP and try them out. Is there a way to dynamically adjust the jitterbuffer so that the right size is being used? Right now I have it set at 180:540:540. Maybe there is some other setting I could try that would help?
Perhaps there's a way to force OPUS to use less bandwidth at the expense of quality?
I'm willing to share the PCAPs some examples.
Thanks in advance.
--Danny Gershman
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