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  1. #1
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    Mar 2017
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    New Hampshire
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    Room measurement tool

    So I don't have to search a hundred threads, can someone guide me to Mic/ measuring software to measure my room? Something I don't need an engineering degree to use? I researched it awhile ago and thought I remembered needed to spend around $300 for mic and software? .I see mics like Mini DSP are $109 and software free?
    System #1................................................ System #2

    ROON Nucleus + server ...............................SME 20/3A
    MSB Premier DAC / V2 Renderer ...................SME V arm
    VAC Signature MkII SE Preamp .....................Dynavector TE Kaitora Rua
    MSB S202 Stereo Amp.......... Sutherland current gain phono stage, Phono loco
    Wilson Audio Sasha II................................ Stenheim Alumime Three
    REL G1 Mk II (pair) Subs............................ Bricasti M1 SE DAC
    Transparent Audio Gen 5 Reference........... T+A PA3000HV Integrated

    [

  2. #2

    Re: Room measurement tool

    Buy one of these and download Room Equalization Wizard from REW Forum for free.

    https://www.amazon.com/miniDSP-UMIK-.../dp/B00N4Q25R8

  3. #3
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    Re: Room measurement tool

    Quote Originally Posted by Puma Cat View Post
    Buy one of these and download Room Equalization Wizard from REW Forum for free.

    Amazon.com
    +1
    Morgan

    SPEAKERS KEF Blade 2 w/IsoAcoustics Gaia II | SUBWOOFERS Four DIY Speaker Hardware 12" passive subs driven by Dayton SA1000 amp | AMPLIFICATION Pass Labs X350.8, Cary SLP-05 w/Ultimate Upgrade | DIGITAL Marantz SA-10, Sonore opticalModule and opticalRendu, NUC8i7BEH Roon Core | VINYL EAT C-Sharp, Hana SL, EAT E-Glo S w/LPS, Bob's Devices Sky 20 SUT | POWER AudioQuest Niagara 5000, two dedicated circuits | WIRES AudioQuest William Tell, Earth, Leopard, Tornado | RESONANCE/ISOLATION Nordost Sort Kones, various Herbie's Audio Lab

  4. #4

    Re: Room measurement tool

    + another 1
    4x20A circuits | Audioquest Niagara 3000 | Music PC w/JCAT Femto nic + 4 LPSUs, Roon, Tidal, Qobuz | Aqua Acoustic Quality LinQ Network Interface | Aqua Acoustic Quality Formula xHD Rev. 2 DAC | Purity Audio Silver Statement preamp | Audionet Max monoblock amps | Vivid Audio Giya G2 Series 2 | 4 JL Audio Fathoms | Echole / JPS Labs ICs, JPS Labs Aluminata SCs, Shunyata PCs | Stillpoints -> components, Isoacoustics -> speakers, subs | Custom Baltic birch rack + amp stands| Fully treated + dedicated 2 channel room

  5. #5
    Member
    Join Date
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    Re: Room measurement tool

    Quote Originally Posted by Puma Cat View Post
    Buy one of these and download Room Equalization Wizard from REW Forum for free.

    https://www.amazon.com/miniDSP-UMIK-.../dp/B00N4Q25R8
    Ordered, thanks.
    System #1................................................ System #2

    ROON Nucleus + server ...............................SME 20/3A
    MSB Premier DAC / V2 Renderer ...................SME V arm
    VAC Signature MkII SE Preamp .....................Dynavector TE Kaitora Rua
    MSB S202 Stereo Amp.......... Sutherland current gain phono stage, Phono loco
    Wilson Audio Sasha II................................ Stenheim Alumime Three
    REL G1 Mk II (pair) Subs............................ Bricasti M1 SE DAC
    Transparent Audio Gen 5 Reference........... T+A PA3000HV Integrated

    [

  6. #6
    Senior Member
    Join Date
    May 2020
    Location
    UK
    Posts
    218

    Re: Room measurement tool

    Quote Originally Posted by Puma Cat View Post
    Buy one of these and download Room Equalization Wizard from REW Forum for free.

    Amazon.com
    I've heard that this is the best combination, but could you tell those others thinking of going that route how complicated it is to take readings please?

    For example I find Dirac Live a PIA. The mic needs to be faced upwards towards the ceiling so I need to remove light fittings around the measurement points, and there are at least 7 measurement locations required (each needing 3 sweeps) to obtain one result.

    Does REW allow for a single measurement point (the listenng position) with the mic pointing towards the space between the speakers (single reading) and / or towards each speaker? Thanks. Peter
    Sources - NAD M50.2 (streamer, CD player, CD ripper, hard drive music store)
    Amplification - NAD M33, NAD M12, Consonance Cyber 845 monoblocs
    Speakers - Avantgarde Duo XD, Avantgarde Duo (2006) - both aesthetically modified, Martin Logan Expression 13A (now sold)

  7. #7

    Re: Room measurement tool

    Quote Originally Posted by Hear Here View Post
    I've heard that this is the best combination, but could you tell those others thinking of going that route how complicated it is to take readings please?

    For example I find Dirac Live a PIA. The mic needs to be faced upwards towards the ceiling so I need to remove light fittings around the measurement points, and there are at least 7 measurement locations required (each needing 3 sweeps) to obtain one result.

    Does REW allow for a single measurement point (the listenng position) with the mic pointing towards the space between the speakers (single reading) and / or towards each speaker? Thanks. Peter
    It is not too complicated to take different measurements. However, like everything else, there is a learning curve.

    The need for taking different measurements is not a requirement of REW, rather, it is done to get measurements at the listener position AND its surrounding area (typically about 1-2 feet around listening position).

    The measurements can be taken with the microphone pointing toward the speaker or toward the ceiling. However, pointing toward the ceiling is recommended. The microphone is calibrated both ways (on-axis, and 90 degrees) and the corrective adjustment figures are provided for each.

    There are companies that will use your measurements and will develop the filters for you. So all you have to do is get the measurements using whichever software you prefer and email the readings to them. Then they send you the files that you can use with, say, Roon or HQP.

  8. #8
    Senior Member
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    May 2020
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    UK
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    218

    Re: Room measurement tool

    Quote Originally Posted by nicoff View Post
    It is not too complicated to take different measurements. However, like everything else, there is a learning curve.

    The need for taking different measurements is not a requirement of REW, rather, it is done to get measurements at the listener position AND its surrounding area (typically about 1-2 feet around listening position).

    The measurements can be taken with the microphone pointing toward the speaker or toward the ceiling. However, pointing toward the ceiling is recommended. The microphone is calibrated both ways (on-axis, and 90 degrees) and the corrective adjustment figures are provided for each.

    There are companies that will use your measurements and will develop the filters for you. So all you have to do is get the measurements using whichever software you prefer and email the readings to them. Then they send you the files that you can use with, say, Roon or HQP.
    Many thanks - very helpful.

    Now you mention it, I do remember reading that this mic offers 2 correction curves so I'd probably use the forward facing option. I'm happy taking a small number of readings from around the listening position in order to stretch the very narrow sweet spot that my speakers are notorious for! In fact the lower frequencies of my Avantgarde Duo XD speakers can be manipulated by the dowloadable XD software and Avantgarde can help with correction settings if they see the measured curve. They don't provide a microphone with XD speakers, or the sort of "auto-adjust" that Dirac offers, but some distributors and dealers have measurement kits that may well be based on that mic and REW.

    I've used Dirac Live and other DSPs but have never convinced myself that they actually improve the sound. They certainly flatten the curve but they seem to take away a little of the life and excitement from the music. I put this down to the extea signal processing that these DSPs impose on the entire frequency range despite (in Dirac case) adjusting only the sub-500Hz range. Since the XD processing is entirely done in the bass amplifier that's built into Avantgarde speakers, this slight deadening of the music shouldn't be present as the upper range is sent directly and without any filter from the power amp.
    Sources - NAD M50.2 (streamer, CD player, CD ripper, hard drive music store)
    Amplification - NAD M33, NAD M12, Consonance Cyber 845 monoblocs
    Speakers - Avantgarde Duo XD, Avantgarde Duo (2006) - both aesthetically modified, Martin Logan Expression 13A (now sold)

  9. #9

    Room measurement tool

    In my experience, if done correctly, the cost benefit of applying DSP filters based on the speaker-room response, outweighs by far the benefits of playing around with cables. There is just no comparison. And you can actually ‘see’ (that is, the before and after graphs) and hear the results.

  10. #10
    Senior Member
    Join Date
    May 2013
    Location
    Silicon Valley
    Posts
    2,628

    Re: Room measurement tool

    Quote Originally Posted by nicoff View Post
    In my experience, if done correctly, the cost benefit of applying DSP filters based on the speaker-room response, outweighs by far the benefits of playing around with cables. There is just no comparison. And you can actually ‘see’ (that is, the before and after graphs) and hear the results.
    Cables have nothing to do with room measurements. The purpose of a cable is to get an electrical signal from A to B with as little degradation as possible.
    Bud

    Lumin X1 file player
    Sony XA-5400ES SACD
    Pass XP-22 pre, X600.5 amps
    Magico S5 MKII Mcast Rose speakers, SPOD spikes

    Shunyata Triton v3/Typhon QR for source, Denali 2000 (2) for amps
    Shunyata Sigma XLR analog ICs, Sigma speaker cables
    Shunyata Sigma HC (2), Sigma Analog, Sigma Digital, Z Anaconda (3) power cables

    Mapleshade Samson V.3 four shelf solid maple rack, Micropoint brass footers
    Three 20 amp circuits.

  11. #11

    Re: Room measurement tool

    Quote Originally Posted by BlueFox View Post
    Cables have nothing to do with room measurements. The purpose of a cable is to get an electrical signal from A to B with as little degradation as possible.
    That is actually exactly my point. You can spend thousands of dollars on cables that you perceive (subjectively) to make all kind of difference in the sound. Or you buy inexpensive good quality cables and invest a modest amount on DSP and objectively see (graph) and hear the results.

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Room measurement tool

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