Recent content by DanDan

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    REW and Testing Electronics - what interface do you like?

    It is probably a matter of budget. I took a quick look at some potential 2 Ch interfaces.... Even the RME does only 19dBU.
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    REW and Testing Electronics - what interface do you like?

    I have used the iMac Line I/O for testing. The smallest MOTU is highly rated.
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    Some advice on measurements and correction

    Best to post the .mdat file. Measure, L, R, and L+R. Worthing including Ear locations as well as a Centre. Step well away from the Mic.
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    REW SPL Meter weighting setting

    Z is zero filter. I would use that.
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    Cannot get good data for card calibration

    Well you could slow it right down. I am trying to establish if the problem is in the sweep or the recording. Afaik it is possible to generate a sweep and play it from some other device, even a phone or such.
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    Cannot get good data for card calibration

    Is it audible during the sweep?
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    Headphone out on Macbook pro okay?

    The Headphone Output on any Mac I have tried has been excellent. They can of course be used as a Line Output.
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    Sound card calibration doesn't work, please help.

    You probably don't need Loopback and it is quite a troublemaker. Afaik RME have an additional driver to talk to the OS. It is difficult to get all these systems to play nice together.
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    RTA and Scope with high DC voltages

    Instrument Jack Input, or active DI Box?
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    RTA and Scope with high DC voltages

    Buy an actual HV Scope probe and change the connector at the interface end.
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    Can REW be used to measure clipping?

    SignalScope by FaberAcoustical
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    Low SPL level measurement

    There might be a level control in your OS, not at nominal. On Mac take at look into AudioMidi Setup.
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    Calibrating Level in Generator

    If you do not have a Line Output, a Headphone Output will work.
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