>Date: Mon, 3 Feb 2014 17:10:05 -0500 >From: Cowboy <c...@cwf1.com<mailto:c...@cwf1.com>>
>To: >rivendell-dev@lists.rivendellaudio.org<mailto:rivendell-dev@lists.rivendellaudio.org> >Subject: Re: [RDD] Rivendell-dev Digest, Vol 10, Issue 1 >Message-ID: ><201402031710.05655.c...@cwf1.com<mailto:201402031710.05655.c...@cwf1.com>> >Content-Type: text/plain; charset="iso-8859-1" >Personally, I always liked using a single channel balanced input, and feeding >L+ and R- into to it, to obtain L+R out and let the >differential input do >what it does ! Hey I do that! It doesn't always work perfectly as it depends on impedances of the inputs and outputs a little, and of course only works with "electronic balanced" outputs (two differential amp outputs, no transformer). Also it sure confuses people that come in behind me, so I tend to only do in places where nobody is likely to find it! >Date: Mon, 3 Feb 2014 15:18:15 -0800 (PST) >From: Rick <rj...@yahoo.com<mailto:rj...@yahoo.com>> >To: >"rivendell-dev@lists.rivendellaudio.org<mailto:rivendell-dev@lists.rivendellaudio.org>" <rivendell-dev@lists.rivendellaudio.org<mailto:rivendell-dev@lists.rivendellaudio.org>> >Subject: Re: [RDD] Rivendell-dev Digest, Vol 10, Issue 1 >Message-ID: <1391469495.86737.yahoomail...@web164801.mail.gq1.yahoo.com<mailto:1391469495.86737.yahoomail...@web164801.mail.gq1.yahoo.com>> >Content-Type: text/plain; charset="us-ascii" >Virtual idea sounds great with phase check being critical. >For Jim's virtual approach, I would think there should be an effective >baseline phase test one could employ. >Something along the lines of L+R phase test audio ==> virtual summing ==> >check result for phase (something simple & consistent). >I'm envisioning the output could be a simple audio/listen test, and/or output >to a file (.WAV for example), and pull up in Audacity for a >visual check? I've never checked it this closely (I've got an Oscilloscope on my bench I could use, but never felt the need), but one thing for sure I've never heard the "slipping/rolling phase" problems with JackAudio as I used to when mono-ing stereo sources that came from old fashioned tape playback! Really unless you want to employ a fancy "phase chaser" device or software to continuously correct the source before summing, mixing signals with JackAudio seems to work fine. Then again, I only do this mix-2-mono stuff for IFB feeds, and other monitoring needs (I have "Cue" buttons on RDAirplay that gets creative with my normal stereo studio monitor speakers - Did I ever tell you Rivendell allowed by to build a broadcast studio without a traditional physical mixing console? We even have one, I just never had a good reason to install it yet!), and "low-grade" (internal use) preview streams.
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