Phone audio input?


    Jan 31 2006 | 5:03 am
    Does anyone here have any experience using phone audio as input? I am looking for a way to connect multiple phone lines (at least two), or multiple VOIP sessions, to a Mac and have each line appear as separate audio input channel. Either an analog or a VOIP solution would work, as long as I could get a separate audio channel from each voice connection.
    I know there are PBX solutions for the Mac like Phlink (http://www.ovolab.com/phlink/) as well as various VOIP clients, but I'm not sure how or if they can be made available to Max as inputs.
    Thanks, Ryan

    • Jan 31 2006 | 11:05 am
      hrm yeah I would also like to know how in teh fuk one would record phone conversations, or pipe audio from the phone into a soundcard. Haven't done much, where much = any, research on the subject.
      jimmy2swords
    • Jan 31 2006 | 11:22 am
      Although it doesn't seem to be quite what everyone has in mind, there is a transducer from radio shack made specially for recording phone conversations. It has a black suction cup that sticks to the phone speaker, and it plugs in with an 1/8" jack into whatever input you have. This seems like it would be the simplest way to go IMO. I don't think any more fidelity would be lost than was already is over the trip through the multiplexing what-have-yous in the phone lines.
      -- barry threw :: sound http://www.barrythrew.com bthrew@gmail.com 857-544-3967
    • Jan 31 2006 | 11:27 am
      Yeah, hah. While I was writing the above, my brain was going "Don't bother writing this, they probably sell something at radio shack" over and over again. =X Damn, need to start listening to myself more.
    • Jan 31 2006 | 1:35 pm
      They also have them here: http://www.skycraftsurplus.com/ Try sending them an email. They may send it to you for cheaper.
      One of my favorite places to go waste an afternoon in Orlando. Right up there with the theme parks, although no coasters. I am sure other cities have an equivalent. (?)
      ----- Nathan Wolek nw@nathanwolek.com http://www.nathanwolek.com
    • Jan 31 2006 | 1:59 pm
      > Although it doesn't seem to be quite what everyone has in mind, there is > a transducer from radio shack made specially for recording phone < > This seems like it would be the simplest way to go IMO. I don't think > any more fidelity would be lost than was already is over the trip > through the multiplexing what-have-yous in the phone lines.
      I never had any luck worth mentioning with that suction-cup mic. In my experience they don't even come close to line quality. You might even be better off using a DIY contact mic (about the same price); there are instructions for those all over the web.
      I have a Polycom teleconference apparatus that has a single RCA aux output jack, and that works well. Office equipment might be one area to check for alternatives.
    • Jan 31 2006 | 2:11 pm
      If you go the VOIP route, you can likely take the audio from the VOIP application into Max/MSP using JackOSX:
      There are some issues with Skype and JackOSX, but other apps should work OK...
      Dan
      -- Dan Nigrin Defective Records 202 Hack / PC-1600 User / VSTi Host / OMS Convert / Jack OS X http://www.defectiverecords.com http://www.jackosx.com
    • Jan 31 2006 | 10:42 pm
      Look for Wojciech Kosma's skype object here:
      I have not used it, but I'd be curious to know how well it works,
      mzed
    • Feb 02 2006 | 6:20 am
      Thanks for everyone's answers. I am going to see how far I can get with Skype, Jack, and perhaps Wojciech Kosma's skype object (though I'm not sure I will actually need that). I'm a little concerned that I will not be able to get more than one Skype call at a time thought--I may have to network more than 1 computer together to get multiple calls as multiple channels in...
      I wonder if libjingle could be used to make a maxmsp object that communicates with Google Talk?
      Ryan