#1
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DB Levels
Since the wall treatment went in, I got curious on what the DB level was of the room since I noticed there is zero fatigue and the volume now is cranking at 50%, up about 20-25% prior to room treatment. I just wanted to make sure I was not unknowingly damaging my ears.
If I was thinking, I should have measured prior to the treatment but recall at 50%, it would have been too loud, distorted with other issues followed by fatiguing. I searched and found dbMeter on iTunes, it cost $2.99. I don’t know the accuracy of this and I am sure there are better out there. Anyway, it was a start for me. Again, I wished I measured before the treatments, that way you can see a direct result, although it is very obvious. At 50% volume, the db level was around 70-75%, and at that level the music is singing loud, clear and dynamic, no fatigue. I have done so much over the last few weeks, its hard to discern what the individual contributions are but I know the level of volume I am now playing is directly related to the wall treatments. Going through this process, made the sound way better then expected despite still having the ceiling and traps to address. Does anyone else look at this? If so what do you use to measure? |
#2
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The iPhone dB meters are of no value. I have a couple of those on my iPhone and they don't correlate at all with my REAL, true blue dyed in the wool, AudioControl RTA/dB meter.
For $2.99 you are getting what you paid for. Maybe if you have a real, calibrated meter that you can compare with an iTunes/iPhone meter you can make some comparisons. Last edited by GaryProtein; 10-30-2017 at 12:31 AM. |
#3
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My personal favorite
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Ivan FLORIDA MX136, MC1.2KW(10) MC2KW(2), MCD1100, MS750(2) MVP881, C1000C/P/T, MPC1500, HT-2 SUBS(2) HT3F(2) WS350(2) XRT2K, XCS2K, XR27(2) XCS350(2) JL GOTHAM v2 SUBS(2) SILENZIO MUSIC SERVER, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" MOTORIZED SCREEN, CINEMA-TECH SEATING, WW PLATINUM CABLES Reference System: ACCUPHASE A300 AMPS, C3900 PRE-AMP, DP1000 CD/SACD TRANSPORT, DC1000 DIGITAL PROCESSOR, DG-68 DIGITAL EQUALIZER, T1200 FM STEREO TUNER, PS1230 POWER SUPPLY, HRS-SXR CUSTOM RACK w/ M3X SHELVES, TAD REFERENCE ONE MK2 LOUDSPEAKERS, WW PLATINUM CABLES CAPE COD MX150, MC501(2) MC1.2KW(10) MC2301(2) MR88, MVP881, MCD1100, MDA1000, C1000C/P/T, MPC1500, ESOTERIC K-01X 30th ANNIVERSARY (BLACK) SACD/CD PLAYER, G02-X CLOCK, HT3F(2) XRT2K, XCS2K, XR27(2) JL GOTHAM v2 SUBS(2) JL FATHOM F113v2 SUBS(4) SOUND ANCHOR STANDS(2) KALEIDESCAPE STRATO & TERRA SERVERS 80-TB, LUMAGEN RADIANCE SCALER, SONY VPH-G90U 4K PROJECTOR, STEWART 120" SCREEN, SONUS FABER STRADIVARI, SILENZIO MUSIC SERVER, FORTRESS SEATING, WW PLATINUM CABLES Analog Rig: CLEARAUDIO INNOVATION WOOD, UNIVERSAL ARM w/ Da VINCI' CART, 2nd UNIVERSAL ARM w/ GOLDFINGER STATEMENT CART, HRS-MXR REFERENCE RACK-GLOSS BLACK w/ M3X SHELVES, AESTHETIX RHEA SIG PHONO-PRE, BRYSTON BHA-1 HEADPHONE AMP, WW PLATINUM CABLES Reference System: BURMESTER 911MK3 AMP(3), 088 PRE-AMP, 089 CD PLAYER, 100 PHONO PRE-AMP, 948 POWER CONDITIONER, ACCUPHASE DG-68 VOICING EQUALIZER, AVID ACUTUS REFERENCE SP TT, GRAHAM PHANTOM II SUPREME ARM, BENZ MICRO LP-S CART, GRANDIOSO P1X/D1X STACK, G1X RUBIDIUM MASTER CLOCK, N05 NETWORK PLAYER, SILENZIO MUSIC SERVER, HRS-SXR CUSTOM RACK w/ M3X SHELVES, SONUS FABER AIDA SPEAKERS, JL FATHOM F113v2 SUBS(2) SOUND ANCHOR STANDS(2) WW PLATINUM CABLES Library System: GRANDIOSO M1 MONOBLOCK AMPS, C1 LINESTAGE PRE-AMP, K1X CD/SACD PLAYER, G1 MASTER RUBIDIUM CLOCK, E02 PHONO-PRE, SILENZIO MUSIC SERVER, AERIAL ACOUSTICS 20T V2, AERIAL SW12 SUBS(2), CANTON REF K1’s, VPI HRX TT w/ SDS POWER SUPPLY, ORTOFON CADENZA BLACK CART, KLAUDIO RCM, SHUNYATA DENALI 6000/S v2, SHUNYATA OMEGA QR’s, WW PLATINUM CABLES Esoteric/Bryston System: ESOTERIC C02-X PRE-AMP, P-02X TRANSPORT, D02-X DAC, G02-X CLOCK, BRYSTON 28B3 CUBED MONOBLOCK AMPS(4), BRYSTON BHA-1 HEADPHONE AMP, SHUNYATA DENALI 6000/S v2(2) EVEREST 8000 POWER CONDITIONER(2) ALTAIRA CG & SG HUBS, AMR-DP777-SE DAC, SILENZIO MUSIC SERVER, TAD REFERENCE ONE MK2 LOUDSPEAKERS, QUADRASPIRE RACK, WW PLATINUM CABLES Accuphase/Canton System: ACCUPHASE E800 INTEGRATED, DP570 CD/SACD PLAYER, T1200 FM STEREO TUNER, DG-68 VOICING EQUALIZER, PS530 POWER SUPPLY, CANTON REF K3’s, CANTON REF K5’s, SILENZIO MUSIC SERVER, HRS MXR REFERENCE MAHOGHANY RACK w/ M3X2 SHELVES, WW GOLD CABLES |
#4
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I just ordered a calibrated microphone from Audiocontrol for use with iPhone and iPad in conjunction with their StudioSix app.
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#5
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My Extech 407750 sound pressure level meter serves my purposes well. Easy to use, accurate, and can be tripod mounted. Measures 30 to 130 decibels. Meets ANSI and IEC 651 Type 2 standards. Data hold and Min/Max functions. Backlit display allows use in dimly lit areas. The meter also has an RS232 interface for capturing data directly to your PC using optional Windows compatible software. Available from Amazon.
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Dan STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113 VINTAGE - McIntosh MA230, Tandberg 3011A tuner, Olive 04HD, Sony DTC-59ES DAT, McIntosh 4300V, JBL 4312A Last edited by jdandy; 10-30-2017 at 07:52 AM. |
#6
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Radio Shack - 33-2055. ~$40
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Main Equipment: Kharma Elegance dB11-S, JL Audio F113v2 X 2, Block Audio Line & Mono SE Amplification, Bricasti M21 DAC, Antipodes Kala K-50 Server, Clearaudio Performance SE. Satisfy tonearm & Maestro Wood MM cartridge. Power: Shunyata Everest 8000, Sigma XC v2, Sigma NR v2, Block Audio PCs, Defender, ADDPowr Wizard Grounding: Shunyata Altaira CGS - 4 X Alpha CGS cables, Network : Supra Cat 8+, Twin (Nenon) Modified Buffalo GS2016 Switches, Keces P3 LPSU, Cables: Wireworld Platinum 8 USB, Wireworld Platinum Eclipse 8 Speaker cables, 6M & 1M Tubulus Concentus ICs, Other:Two PSI Audio AVAA C20, Multiple GIK products, Stillpoint Apertures, Stillpoint Minis and Ultra SS, Three 20 Amp lines, Furutech GTX - Gold outlets, Adona Rack |
#7
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Quote:
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#8
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Quote:
Today, I spoke to Mark with Audio Control located in Mountlake Terrace Washington, just north of Seattle. He indicated the cell phone app from iTunes is not as bad as I thought and is within 5db, but limited (back to you get what you pay for). He did say he keeps this app on his phone when he gets pulled over in his supped up Mustang because I guess legally you can’t be over 90db, and since it’s off a tad, works in his favor. Anyway, they offer a iTestMic2, the only direct-connect iOS calibrated test & measurement microphone. You need to pair this with an app from their partner Studio Six Digital, here is a link that really lays out the detail, all for around $220.00. http://www.studiosixdigital.com/audi...are/itestmic2/ Thank you to everyone for their suggestions! |
#9
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Quote:
Ed that’s the mic I have on order, hopefully it arrives soon. |
#10
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Although I never thought or even expect the phone-based apps to be accurate, I use two different ones all the time for ‘relative’ measurements, whether for my sound system, in a car, a concert, on a plane to measure the spl just out of curiosity, or someone else’s system.
While the repeatability of an app should be quite good, I’d never trust the absolute number shown. I’d also expect the app to show different values when used on an iPhone 5 vs a 6 or a 6S, 7, or 8. For me, the app(s) is more of a convenience to have something literally at my fingertips anywhere I go rather than a precise measurement. |
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