Recent content by arivel

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    problems with amplifier

    Hi everyone . Up until now I have always taken measurements using a Marantz amplifier (PM 510 DC). now there are problems. I am forced to deactivate the circuit dedicated to equalization with the appropriate button (EQ defeat) because otherwise a protection is triggered and no signal comes out...
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    first steps with REW

    i did some measurements with karlson K12. I would like to get two separate graphs. one for direct radiation and one for rear speaker radiation which passes from the rear chamber to the anterior chamber through two reflex ports. I thought of using a diode between the sound card and the marantz...
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    first steps with REW

    I understood little but I deduce that after having done it it is better not to touch anything anymore.
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    first steps with REW

    after creating the sound card calibration file (mine is an e-mu 0404 usb), can I put my hand on the preamplifier and output knob or do I no longer have to touch anything?
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    first steps with REW

    perfect thanks
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    first steps with REW

    lately I can no longer make measurements with emu0404 sound card and OM1 microphone. if i start to turn up the volume of my marantz 510 i get a strong audio feedback between speaker and microphone so i have to turn everything off.
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    first steps with REW

    what does this error mean? REW V5.20.13 running Azul Systems, Inc. JRE 1.8.0_345 64-bit on Windows 7 Locale: language it, keyboard IT, windows-1252 at 96 DPI Message: java.lang.NullPointerException Stack Trace: roomeqwizard._E.A(y:213) roomeqwizard._E.A(y:2253)...
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    first steps with REW

    Is it possible to see the phase difference between woofer and tweeter?
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    first steps with REW

    that's exactly what I would like to do. see in the graph the influence of the cabinet
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    first steps with REW

    Hi, I have two questions to ask. as is done with the sound card, is it possible to create a calibration file tailored to the loudspeaker in order to have a graph in which only the frequency response of the cabinet is seen instead of that of the cabinet together with that of the loudspeaker?. I...
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    first steps with REW

    is the TASi TA8151 ok? https://www.tnt-audio.com/accessories/tasi_ta8151_e.html
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    first steps with REW

    one thing is not clear to me. to find out if the sound pressure is 75 decibels do I have to use a sound level meter or can I use my OM1 microphone combined with the SPL meter application which is already integrated in REW ?.
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    first steps with REW

    because in preferences it does not appear to me in the same way as in fig. 1 ? only the entry e-mu 0404 appears in the driver box
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    first steps with REW

    I want to compliment the author of this wonderful software and the patience he has with me. Is it possible to compare the measurement I make with my instruments with the graph made available by the loudspeaker manufacturer to find out if I've made a state-of-the-art measurement or if I've done...
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    first steps with REW

    after creating the sound card calibration file can I play with the knob that adjusts the outputs and the knobs that adjust the microphone inputs or do I have to touch nothing anymore?. in the image, main output at top right and mic/H-z/line at bottom left if there are adjustment errors both on...
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