8-channel sound installation on MAX patch


    Jul 06 2006 | 5:04 pm
    Hi, evcerybody, I am working on a 8-channel sound installation (one speaker consisting of one track in loop. each track is approximately 2~3 minutes long) and was advised it's best to be build on a MAX patch. I am not familiar with MAX's interface and wondering if I could get any of your inputs.
    And if MAX is the way to go, besides the speakers and a laptop, is anythere any hardware involved such as amplifiers etc.?
    Thanks so much for your help and time in advance!!!

    • Jul 06 2006 | 6:03 pm
      max is definitely a great tool for these kind of projects, but be warned it has a fairly steep learning curve. that being said, it also gives you much, much more flexibility that anything else out there, and this kind of project would be quite simply to implement - just audio, no video, etc. as far as hardware goes, to use 8 channels you would need an external audio box that has at least 8 channels of output, like an m-audio FW410 box or similar. you would also need 8 channels of amplification and 8 speakers. cheers bruce
      bruce tovsky www.skeletonhome.com
      "Reality is that which, when you stop believing in it, doesn't go away." Philip K. Dick
    • Jul 06 2006 | 6:40 pm
      hello
      to give a good answer, many information would be needed.
      the first question would be : do you really need 8 loudspeakers? why? is there any acoustical reason to work with 8? separation of 8 sound sources is not enough : using panning techniques, 8 sound sources can be separated in a field generated by a two loudspeakers system.
      would be better 16 o more? would your installation work with 4 loudspeakers or less?
      what is the expected sound quality? this would condition loudspeakers, interfaces, players, amplifiers, soundfiles... all.
      if a multitrack-multispeaker system is needed for a computer sound project, besides the laptop and loudspeakers, there is also needed a multitrack sound device to address any mix of sound sources to any combination of loudspeakers. there is a lot of such devices in the market : motu, hammerfall, m-audio, digidesign are offering some of them... there are many others. some of them are fire-wire devices, other, usb, other, pci, other, pcmacia...
      about loudspeakers and amplifiers, a decision can't be taken without knowledge of dimensions and reflection characteristics of the room where the work will be installed.
      some good studio monitors makers are Makie, Genelec, Dinaudio ... they use to be autoamplified. If the installation is running in a large room, perhaps another system would be needed.
      about maxmsp, it can easily address the audio information you describe. nevertheless, if there is not any algorihmic behaviour or real time processing involved, perhaps the task of playing some independent sound sources could be achieved with some cd players, a mixing device and some studio monitors.
      jm
      jose manuel berenguer jmbeal@telefonica.net +34932857046 +34696538403. http:// www.sonoscop.net/jmb/ jmberenguer@sonoscop.net +34933064128. http://www.sonoscop.net/ caos->sonoscop. cccb. montalegre, 5. 08001 barcelona spain
    • Jul 06 2006 | 6:42 pm
      > And if MAX is the way to go, Max is not the only option, but it will suffice.
      > besides the speakers and a laptop, is anythere any hardware involved such > as amplifiers etc.? Depends on whether your speakers are powered or not. If they are powered, then you won't need any amplifiers. If they are not powered, then you will need 4 amps (2 channels per amp).
      You'll also need an 8 (or more) channel audio interface, cables to run from the interface to the amps and from the amps to the speakers (or, if powered speakers, you'll need cables to run directly from the interface to the speakers).
      You'll also need power strips and extension chords. That much will get you up and running (to the best of my knowledge). Additionally it would be good to have at least 1 power conditioner / surge protector, perhaps 2.
    • Jul 06 2006 | 7:13 pm
      I hit send too soon. It's also a really good idea to put a mixer and / or a compressor/limiter between the audio interface and the amps (or the interface and the powered speakers. A mixer and a compressor/limiter are especially important in this case). And of course the necessary audio and power cables.
      Hope this helps.
    • Jul 06 2006 | 10:20 pm
      It's very easy. Check out the objects: sfplay~, dac~, sliders in max/msp. For hardware, you need to have a sound card that has 8 outputs and of course 8 speakers. That's very expensive. I suggests you use 2 or 4 speakers and use maxmsp panning technique (described in the MSP tutorial) to do the difussion.
      Best, Chien-Wen
      ------------------------------------------------------------------------------------------------- Chien-Wen Cheng's Music: http://w3.nctu.edu.tw/~u8642524/index.htm Chinese Max/MSP Forum: http://home.guestbook.com.tw/b2/index.php?mforum=cwcheng
    • Jul 06 2006 | 11:01 pm
      Hi dear all,
      Many many thanks for your inputs!! I truly appreciated them.
      To asnwer your questions, I suppose I don't need loudspeakers, as the sound (instrumental sound) from each speaker will be played back at whisper-level volume. I do need 8~10 separation of sound sources positioned as a circle and each channel represents an individual element in this project. The expected sound quality needs to be as good quality as possible, because the subtlety of each sound source and its surrounding ambiences would need to be conveyed as clearly as possible at such a low-volume playback.
      This project would not involve any algorihmic behavior or real time processing, so to conclude all of your suggestions, it seems to me cd players, mixing devices and studio monitors would sufice- Can you suggest any good quality powered speakers at reasonable prices? Or do you think these self-powered speakers that are usually made for computer will do the job well? (Someone who has a lot of experiences installing multi-channel works strongly recommends them)
      Thanks again. Any further feedbacks from you will be appreciated!
      hongkai
    • Jul 07 2006 | 6:56 am
    • Jul 07 2006 | 11:09 am
      i also like the 1029, but would definitely prefer the new genelecs 8020 or 8030. /m
    • Jul 07 2006 | 8:02 pm
      Thank you very much!!