Call Recordings Dual Channel

[vaibhav]

FreePBX 15.0.16.78

Is Dual Channel Call Recording (1 channel for caller & 1 channel for agent) possible in FreePBX?

Thanks

[comtech]

Do you mean this?

Recording caller and callee voice in separate files

and from the CLI?

[vaibhav]

Slight variation… I need caller & callee voices recorded in a single audio file (stereo file - one channel for caller & one channel for callee).
Thanks

[comtech]

TIP: Merging mono call recordings into stereo

System: Trixbox 2.2 CE with FreePBX 2.5.x, runs Asterisk 1.2.x After I read about FreeSWITCH’s ability to record calls in stereo, with the inbound leg as one (maybe left) channel, and the outbound leg as the other (maybe right) channel), I wanted to replicate it with my system. Turns out, Asterisk 1.2 uses MixMonitor to mix recordings after the call is done. MixMonitor uses res_monitor.o for this, which actually calls soxmix. Checking the sox documentation on my system revealed that I did not…

[vaibhav]

Thanks @comtech

I checked the post you suggested but it went over my head
Is there any other document/guide you can direct me to.

Thanks

[comtech]

I have not tried this, so there are no guarantees here.

• Check the version of sox installed on your FreePBX is at least 14.3.0
• Create a bash script listed above, note the potential version difference
• Change file /usr/bin/soxmix to /usr/bin/soxmix.back
• Save your bash script as /usr/bin/soxmix
• chown root:root for the bash script
• chmod 775 for the bash script
• Test

Do a test call and see if you have stereo. If it doesn’t work, move /usr/bin/soxmix.back to /usr/bin/soxmix to reverse your changes.

This question comes up periodically, so please report back to this thread if this works as I am sure others will be interested.

[vaibhav]

Thanks @comtech I will try this over the weekend and report back.

[vaibhav]

• Check the version of sox installed on your FreePBX is at least 14.3.0

[root@ast4 ~]# sox --version
sox:      SoX v14.4.1

• Create a bash script listed above, note the potential version difference

Done

• Change file /usr/bin/soxmix to /usr/bin/soxmix.back

My FreePBX install does not have /usr/bin/soxmix so I created the above script but before I make any test call, I guess I need to envoke soxmin somewhere. Where should I do that?

[comtech]

Unsure. Maybe someone else on the forum knows. You could always try greping soxmix to see where the file might be now. I also notice /usr/bin/sox exist, so maybe it is that? I am not sure.