Hi, Unfortunately using MixMonitor and the options 'r' and 't' didn't work. The two files created are not synchronised (different lengths) depending on various scenarios. For example who initiated the call and then who hung-up first.
After reading through the source code I'm not convinced that our own dev team is the most viable resource to extend the MixMonitor app and associated WAV areas. Minimal C dev experience partly but mostly it feels like quite a lot of Asterisk source and audio processing skills are required. Is there a recommended way to offer a bounty for feature requests (I have read the wiki on Bug Bounties). I'm sure I can find budget to sponsor this feature, although it may not be enough if this is a really big bit of work :) I don't want to just post up a random figure which may be insulting to the amount of work required, no more than wasting money. I did post a message on the Asterisk Forums but haven't yet had a reply, so apologies for the duplication if you have already read that. Many Thanks Alex From: Alex Barnes Sent: 14 November 2013 16:19 To: Asterisk Developers Mailing List Subject: RE: [asterisk-dev] Extend MixMonitor to record stereo files Thanks for your reply Scott. We hadn't noticed the new MixMonitor options 'r' and 't'; I must stop using the voip-info wiki rather than the new docs :) We are currently testing to see if setting both options will produce two separate (or three maybe looking at the app_monitor.c file) wav files that we can merge together like we do when using Monitor. If this does work then extending FreePBX to pass these extra options should be trivial in comparison to adding stereo WAV support to Asterisk itself. I'll continue reading around the Asterisk source in the meantime though so thanks again for pointing out the WAV handling issue. Kind Regards Alex From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Scott Griepentrog Sent: 14 November 2013 15:16 To: Asterisk Developers Mailing List Subject: Re: [asterisk-dev] Extend MixMonitor to record stereo files It's definitely possible. Many moons ago (before mixmonitor) I once hacked the mixing script in FreePBX to use sox to build a stero wav file from the two recordings - so I understand the usefulness of what you're trying to do. Be aware that both the Asterisk project and the FreePBX project are open source, and you can contribute to either or both. If I'm not mistaken (willing to be corrected on the internet if I'm wrong ;-) the WAV handling code is fixed in mono and 8khz (or at least used to be) and it may be tricky to add in stereo support. That being said, it's certainly possible to do it within Asterisk. It would require changes to both MixMonitor() or creation of StereoMixMonitor and the WAV handling. The part that I'm fuzzy on is how best to pass the two channels between them. On Thu, Nov 14, 2013 at 3:57 AM, Alex Barnes <[email protected]<mailto:[email protected]>> wrote: Hi all, I was hoping somebody knowledgeable about the inner workings of app_mixmonitor could give me an idea of how feasible our change might be? User Story: As a FreePBX user I would like MixMonitor to save recordings in stereo wav format where inbound calls are one channel and outbound are another. This will allow me to more clearly hear who is speaking as well as more easily extract the audio of just one speaker. Note: The "FreePBX" part is important as we cannot make it use Monitor and an external bash script without hacking apart a lot of the dial plan, hence we are stuck using MixMonitor. We are a dev company but with little C experience and zero Asterisk application development knowledge HOWEVER we're very happy to give it a whirl. I'm literally just starting on researching this and no doubt have lots of reading to do regarding general Asterisk app development, research WAV format issues in C and MixMonitor, how to submit changes to the Asterisk project etc etc. I was hoping somebody could let me know if they think this will definitely not work or if they happen to know of some of the issues we may face and possibly where to start looking. Thanks in advance Alex The Manheim group of companies within the UK comprises: Manheim Europe Limited (registered number: 03183918), Manheim Auctions Limited (registered number: 00448761), Manheim Retail Services Limited (registered number: 02838588), Motors.co.uk<http://Motors.co.uk> Limited (registered number: 05975777), Real Time Communications Limited (registered number: 04277845) and Complete Automotive Solutions Limited (registered number: 05302535). Each of these companies is registered in England and Wales with the registered office address of Central House, Leeds Road, Rothwell, Leeds LS26 0JE. The Manheim group of companies operates under various brand/trading names including Manheim Inspection Services, Manheim Auctions, Manheim Direct, Manheim De-fleet and Manheim Aftersales Solutions. V:0CF72C13B2AC -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-dev mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev -- [Digium logo] Scott Griepentrog Digium, Inc * Software Developer 445 Jan Davis Drive NW * Huntsville, AL 35806 * US direct/fax: +1 256 428 6239 * mobile: +1 317 507 4029 Check us out at: http://digium.com<http://www.digium.com> * http://asterisk.org<http://www.asterisk.org>
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