ETF5 setup

Discussion in 'Archived Threads 2001-2004' started by Rick Radford, Jan 10, 2002.

  1. Rick Radford

    Rick Radford Supporting Actor

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    BruceD,
    Let me start a new thread specifically for ETF.
    I don't know if my SBLive value card is full or half duplex. I've looked all over for any booklet that might have come with my computer, but can't find anything on it.
     
  2. Rick Radford

    Rick Radford Supporting Actor

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    I noticed this msg about ETF5 over on Delphi.
     
  3. Rick Radford

    Rick Radford Supporting Actor

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    I did get the calibration file to load (ratshack). I had to modify it so that ALL numbers were in the format x.y ... ie, 20 could not be 20.(decimal) .. it had to be 20.0.
     
  4. ThomasW

    ThomasW Cinematographer

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    The SB Live Value is full duplex.

    Why didn't use use the RS cal file from the ETF site instead of modifying the old RS corrections?
     
  5. Greg Lee

    Greg Lee Agent

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    I really suggest you check out the first post in the thread Step by Step Sub Equalization using BFD and ETF, and the linked article. Jon M has done a tremendous job of explaining all this. The direct link to the article is below.
    http://www27.brinkster.com/jmag999/
     
  6. Rick Radford

    Rick Radford Supporting Actor

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  7. ThomasW

    ThomasW Cinematographer

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  8. Rick Radford

    Rick Radford Supporting Actor

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    Yeah.. I saw them in the brinkster site that was mentioned. I noticed that the numbers are the same as the RS file I found.. but the signs are opposite. Oh well.

    On the sound card... I know I must have the specs somewhere.. just can't lay my hands on them right now.
     
  9. BruceD

    BruceD Screenwriter

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    Rick,
    The key to understanding this signal capture is getting the cables connected correctly, getting your PC Audio Mixer setup correctly, and getting a level check.
    The cables connections:
    RS-mic -> SBlive LINE-IN right channel (NOT mic-in)
    (full-duplex) SBlive LINE-OUT right channel -> amp LINE-IN channel being tested
    SBlive LINE-OUT left channel -> SBlive LINE-IN left channel
    To use the CD in half-duplex mode on ETF you need to select the CD-half-duplex in the ETF menu.
    Then you put the CD in a repeat loop play on the pink noise signal and start getting a level check and testing away.
    BruceD
     
  10. Rick Radford

    Rick Radford Supporting Actor

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    Bruce,
     
  11. BruceD

    BruceD Screenwriter

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    Rick,
    Here is actual info on the CD half-duplex method.
    Please see the help menu in the ETF program for an exact step by step walk-thru including diagrams of cable setups and example windows
    Here is a brief part of it:
    CD player (Left LINE-OUT) -> stereo Y connector on PC (LINE-IN)
    try both left and right connections on the Y connector to see which one works.
    1) Select "New Measurement" , then "Normal Transfer Function"
    2) Check the text box labeled "Test CD"
    3) Play the test signal on the CD player
    4) the PC audio mixer may need to be set to the sound card for correct input
    5) Click level check to see if the input is strong enough
    6) repeat level check while CD track 1 "MLS signal" is playing on the CD and adjust levels with mixer if necessary
    7) when levels are properly set, the calibartion window will show a new instruction
    . . . . . . .
    Also, the Radio Shack SPL meter mic-correction files typically don't work with the free version of the ETF5 program.
    I haven't tested the CD half-duplex method of using the software, but hope to try it out this weekend and report back.
    I'd ask the 50' cable question in the "DIY and Advanced" section of this forum, as I just don't know the answer. But as I said, it should be real cheap to try it out (50' of satellite type RG-6 coax cable with f-connectors on each end and 2 F-connector to RCA adapters on each end -from radio shack).
    BruceD
     
  12. Rick Radford

    Rick Radford Supporting Actor

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  13. Rick Radford

    Rick Radford Supporting Actor

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    Quick update:

    According to Doug at ETF, a demo copy of ETF cannot save or print files and can only take two measurements at a time. (you have to restart ETF demo to take more).

    Mic calibration files can be used in the demo.

    Hth.
     
  14. BruceD

    BruceD Screenwriter

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    Thanks for the update Rick.

    When I first bought the program ETF4, mic calibration files couldn't be used in the demo.

    BruceD
     

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