Links about acoustics, etc

Everything Else
1

Room Calculator
https://www.psaudio.com/room-calculator/…

Amroc THE Room Mode Calculator
https://amcoustics.com/tools/amroc?l=780&w=560&h=270&r60=0.6

Free Room Acoustic Analysis
https://www.acousticfields.com/free-room-analysis/

How Sound Works (In Rooms)
https://www.facebook.com/TomS.RayAudioMasteringPage/videos/808386162657518/UzpfSTY4NzU5NDQxMTpWSzo1NDE0Nzg0MzI4NjcyMzc/

What are room modes?
https://amcoustics.com/articles/roommodes?PageSpeed=noscript&fbclid=IwAR1GH8UH9QTqUFPbsFuLooUoQv_W9S3QzCehbY90CwT5-HEAApzb3pU3ZpE
http://www.acousticfrontiers.com/room-modes-101/
https://www.youtube.com/watch?v=6Jju4yJWc7s

Helmholtz Resonant Absorber
https://www.audioholics.com/…/helmholtz-resonant…

Helmholtz Resonant Absorber calculator
http://www.acousticmodelling.com/helmholtz.php

The MusicScope is a high precision software audio analyzer and measuring tool that works as an Audio-Microscope to visualize the different quality aspects of a music collection.
https://www.xivero.com/musicscope/…

Room Acoustics Software
http://www.roomeqwizard.com/…

Lydisolering
https://traefiberisolering.dk/om…/fordeler/lyddempende/

LYDABSORBERENDE TEKSTILER
http://ranthex.dk/produkter/akustik-gardiner…
bSLAOLitlxy5Vqhhdo-YWUf1iu7HyC8

wood wool
https://inhabitat.com/colorful-hexagonal-wall-tiles…/…

Building a Reference Grade Listening Room by Mike Lavigne
http://www.positive-feedback.com/Issue16/lavigneroom.htm…

Kvart & Bølge Makers of Audiophile, Quarter-Wave, Full-Range Loudspeakers and Sound Systems
https://www.kvart-bolge.com/…/Psychoacoustic-Secrets-of…

Resource to calculate, building and measuring Hi Fi Loudspeakers and more…
http://www.mh-audio.nl/spk_calc.asp…

RMAF14: High Fidelity Stereo - That’s not Natural! How to make it that way
https://www.youtube.com/watch?v=84Pf0ycbyBM…
http://www.myspeakersetup.com/shop/

Handbook of Acoustics af F. Alton Everest
http://tka4.org/…/The%20Master%20Handbook%20Of…

Welcome to Audio Check
https://www.audiocheck.net/…

The theory of sound - John William Strutt Rayleigh
https://www.irphe.fr/…/Rayleigh/N0095130_PDF_1_340.pdf

Room acoustics for home audio
https://www.crutchfield.com/…/speakers_roomacoustics…

Welcome to Acoustic Fields Academy, the fastest growing acoustics community on the web! With over 400 videos and counting, we’re creating the largest resource of free educational videos about room acoustics online. Subscribe to join us today!
https://www.acousticfields.com/videos/

If you have some good links on the topic then discard them. Thanks

8 Likes
2

Arqen Acoustic Design

Open-source blueprints for acoustic diffusers available for download (free) along with test data.

BTW the http://www.mh-audio.nl/ site mentioned above is off-the-hook cool!

2 Likes
3

Nice…thanks bro

4

Michael, thanks for posting these links, I have learned a lot in a few hours. Things I thought I knew, and a few things that I hadn’t considered. Just from the link I quoted.

1 Like
5

Elbphilharmonie Hamburg
The task was to create one of the world’s best concert halls … It is unfortunately in German … but it is the journey
worth it … if you can get a ticket …

These guys are passing the house door. One of the tasks was that the ship’s horns etc. could not naturally be heard in the concert hall … Thanks Cunard Line for demo …

They often send live…so try signing up on their Facebook …

6

Hamburg’s concert hall is astounding.

i also relish the fact it cost $850,000,000. That is, a concert hall which rivals the cost of a new football stadium - money much better spent on art.

1 Like
7

Missing some zeros?

8

Oops. Fixed.

Thanks!

1 Like
9

image
image.jpg480×640 71.6 KB

10

14937281_10211817727985034_1031606717945982571_n

19399581_1904822203109957_1425745595237802441_n%20(1)
19399581_1904822203109957_1425745595237802441_n (1).jpg960×639 76.5 KB
19224915_1904822409776603_4355713812337299126_n
19225572_1904822243109953_5390236146261114999_n
19225572_1904822243109953_5390236146261114999_n.jpg960×639 72.4 KB
19225639_1904822133109964_8725306719735613189_n%20(1)
19225639_1904822133109964_8725306719735613189_n (1).jpg960×540 61.8 KB
Uploading: 19225639_1904822133109964_8725306719735613189_n.jpg… 19225730_1904826386442872_7903475370793968468_n
19225897_1904826393109538_5416566430786051957_n
19225897_1904826393109538_5416566430786051957_n.jpg960×540 34.5 KB
19225900_1904822376443273_638946944845900446_n 19225940_1904826439776200_8616480659662352133_n 19247890_1904824129776431_2747915332496054675_n 19260257_1904826413109536_9041336961961633815_n
19260602_1904822309776613_2804965661635145470_n
19260602_1904822309776613_2804965661635145470_n.jpg800×413 37.4 KB
19260604_1904822293109948_3675975658921507301_n
19260800_1904822249776619_6043404057386222310_n
19260800_1904822249776619_6043404057386222310_n.jpg960×517 50.2 KB
19274888_1904822353109942_5901296458133914659_n
19274938_1904824076443103_4039181493842988860_n
19274938_1904824076443103_4039181493842988860_n.jpg800×533 36.7 KB
19275176_1904826459776198_8622576970814738985_n 19275179_1904824063109771_1668223106635044332_n 19275332_1904822373109940_694152046782765995_n
19366064_1904824069776437_8760124902291026452_n
19366064_1904824069776437_8760124902291026452_n.jpg750×499 43.7 KB
19366247_1904824139776430_967072994379623779_n
19366247_1904824139776430_967072994379623779_n.jpg960×510 51.2 KB
19390676_1904822206443290_440214857161988068_o%20(1)
19390676_1904822206443290_440214857161988068_o (1).jpg1328×640 85.5 KB
19397001_1904822126443298_8729025581015455569_n
19397001_1904822126443298_8729025581015455569_n.jpg960×590 61.3 KB
19399044_1904822386443272_1148106440746439626_n
19399055_1904824089776435_4611785159007292929_n
19399055_1904824089776435_4611785159007292929_n.jpg930×400 57.1 KB
19399340_1904826483109529_4771263105785375123_n
19399340_1904826483109529_4771263105785375123_n.jpg960×640 94.5 KB
19399436_1904824123109765_5801263323613857392_n
19399436_1904824123109765_5801263323613857392_n.jpg960×638 47.8 KB
19399581_1904822203109957_1425745595237802441_n%20(1)
19399581_1904822203109957_1425745595237802441_n (1).jpg960×639 76.5 KB
19420461_1904822283109949_3122377106541470043_n
19420669_1904826449776199_6651181002205196369_n
19420669_1904826449776199_6651181002205196369_n.jpg930×400 35.3 KB
19420905_1904826403109537_6846581175076585981_n%20(1)
19420905_1904826403109537_6846581175076585981_n (1).jpg960×540 49 KB
19420905_1904826403109537_6846581175076585981_n
19420905_1904826403109537_6846581175076585981_n.jpg960×640 71.7 KB
19554593_1911250619133782_2570667214990995038_n
19554593_1911250619133782_2570667214990995038_n.jpg960×560 91.4 KB
19599019_1911161689142675_244563663469634652_n%20(1)
19599019_1911161689142675_244563663469634652_n (1).jpg800×541 79 KB
19599019_1911161689142675_244563663469634652_n
19599019_1911161689142675_244563663469634652_n.jpg960×549 57.2 KB
19665268_1914812628777581_7785233629454655656_n
19665268_1914812628777581_7785233629454655656_n.jpg864×688 69.1 KB
19731780_1914818525443658_5270455834328593211_n
19732079_1914812658777578_4877884039874063668_n
19732079_1914812658777578_4877884039874063668_n.jpg800×536 71.3 KB
19732161_1914812702110907_3853031403805304453_n
19748356_1914818448776999_8748590796227434778_n
19748356_1914818448776999_8748590796227434778_n.jpg960×540 52.7 KB
19748387_1914818482110329_2268429976102874499_n
19748610_1914812695444241_3970487691742252758_n
19748610_1914812695444241_3970487691742252758_n.jpg775×436 33.3 KB
19748764_1914818505443660_3740332226055254649_n 19748882_1914812655444245_382404171982071296_n
19756469_1914812578777586_8123627863333793190_n
19756469_1914812578777586_8123627863333793190_n.jpg960×640 75.2 KB
19756709_1914812572110920_3886325045341054540_n
19756709_1914812572110920_3886325045341054540_n.jpg960×640 57.1 KB
19756763_1914812592110918_108871265096143162_n
19756763_1914812592110918_108871265096143162_n.jpg719×478 39.9 KB
19756784_1914812698777574_3585269132742292681_n 19756921_1914818512110326_344735841766616259_n
19875100_1914818462110331_2982726164187261155_n
19875100_1914818462110331_2982726164187261155_n.jpg960×548 71.4 KB
19875368_1914814815444029_7394920287054058120_n%20(1)
19875368_1914814815444029_7394920287054058120_n (1).jpg960×540 60.1 KB
19875511_1914812595444251_6666077827884899615_n
19875511_1914812595444251_6666077827884899615_n.jpg960×628 119 KB
19875522_1914818532110324_1894631455362914593_n
19875522_1914818532110324_1894631455362914593_n.jpg960×638 74.3 KB
19875529_1915181445407366_1921736524065031977_n
19875529_1915181445407366_1921736524065031977_n.jpg960×720 56.6 KB
19875557_1914812618777582_4348003426238279266_n
19884119_1914814812110696_7649561836720186386_n
19884119_1914814812110696_7649561836720186386_n.jpg960×400 35.3 KB
19959217_1914814848777359_4052585246054358933_n
19959217_1914814848777359_4052585246054358933_n.jpg800×533 52.6 KB
20479456_1927811684144342_8059211625780418992_n
20479456_1927811684144342_8059211625780418992_n.jpg960×919 113 KB
20525986_1927811464144364_8939553563186400446_n
20525986_1927811464144364_8939553563186400446_n.jpg960×697 107 KB
20638422_1927811214144389_8221515219787409746_n
20638422_1927811214144389_8221515219787409746_n.jpg960×836 81.6 KB
20638433_1927811840810993_5523819225578075609_n
20638433_1927811840810993_5523819225578075609_n.jpg960×653 81.9 KB
27021645_2005376499721193_5655698962168051179_o
27021645_2005376499721193_5655698962168051179_o.jpg1280×960 192 KB
27355929_2007484279510415_2982577164039501588_o
27355929_2007484279510415_2982577164039501588_o.jpg1080×720 69.8 KB
27982875_2018959351696241_8495186947627733436_o
27982875_2018959351696241_8495186947627733436_o.jpg989×785 97.2 KB
37403451_2114467835478725_2813901605554880512_n
37403451_2114467835478725_2813901605554880512_n.jpg960×720 66.8 KB
37426882_2114458455479663_2487775027848544256_o
37426882_2114458455479663_2487775027848544256_o.jpg1137×640 120 KB
43648602_2185309431727898_8254792018945900544_o
43648602_2185309431727898_8254792018945900544_o.jpg1040×915 118 KB
44334734_2180481792210662_3238715665456037888_o
44334734_2180481792210662_3238715665456037888_o.jpg1040×746 144 KB
44795398_2185649281693913_7079096158194237440_o
44795398_2185649281693913_7079096158194237440_o.jpg1080×805 81.2 KB
44832270_2185649251693916_503893049294716928_o
44832270_2185649251693916_503893049294716928_o.jpg1065×701 137 KB
45013136_2186313748294133_1158249561861390336_o
45013136_2186313748294133_1158249561861390336_o.jpg1065×687 237 KB
45124894_2187050094887165_2867127464511930368_o
45124894_2187050094887165_2867127464511930368_o.jpg1073×727 168 KB
45470934_2191326497792858_6706486687041585152_o
45470934_2191326497792858_6706486687041585152_o.jpg1152×720 152 KB
45591729_2191373567788151_6240980788423163904_o
45591729_2191373567788151_6240980788423163904_o.jpg1056×788 156 KB
46072077_2194571157468392_180673103590850560_n
46072077_2194571157468392_180673103590850560_n.jpg822×960 175 KB
46104977_2195288150730026_1969722785638907904_o
46104977_2195288150730026_1969722785638907904_o.jpg1062×679 145 KB
46426436_2197110813881093_2192021642815733760_o
46436848_2196239743968200_7765857541879234560_o
46436848_2196239743968200_7765857541879234560_o.jpg1030×687 111 KB
46446114_2198914197034088_5439375836123758592_o
46446114_2198914197034088_5439375836123758592_o.jpg1045×744 172 KB
46447663_2198917703700404_2237513923530063872_o
46447663_2198917703700404_2237513923530063872_o.jpg1137×640 169 KB
46458719_2198950640363777_6984046122457104384_n
46458719_2198950640363777_6984046122457104384_n.jpg960×960 126 KB
46482278_2199296416995866_519432146482364416_o
46482278_2199296416995866_519432146482364416_o.jpg1280×853 199 KB
46494590_2201158933476281_579025483434295296_o
46494590_2201158933476281_579025483434295296_o.jpg980×565 98.5 KB
46495938_2198917723700402_1624977546179248128_n
46495938_2198917723700402_1624977546179248128_n.jpg960×639 110 KB
46498192_2200332696892238_4011069154575515648_n
46498192_2200332696892238_4011069154575515648_n.jpg726×960 93.9 KB
46817710_2203732606552247_9046477091440164864_n
47268557_2208499749408866_1471145883654422528_o
47268557_2208499749408866_1471145883654422528_o.jpg1004×663 164 KB
47287913_2208506162741558_6744600252596092928_o
47287913_2208506162741558_6744600252596092928_o.jpg1035×682 143 KB
47314328_2208506329408208_559228428683837440_n
47314328_2208506329408208_559228428683837440_n.jpg741×960 130 KB
47372415_2208499892742185_6489942175508332544_n
47372415_2208499892742185_6489942175508332544_n.jpg436×558 31.2 KB
47379775_2208506239408217_2954504481045217280_n
47379775_2208506239408217_2954504481045217280_n.jpg768×655 88.8 KB
47384148_2208499842742190_3830165922341978112_o
47384148_2208499842742190_3830165922341978112_o.jpg1055×558 121 KB
47388967_2208506382741536_5537894989960314880_n%20(1)
47388967_2208506382741536_5537894989960314880_n (1).jpg877×739 115 KB
47392955_2208499776075530_2285177786953891840_n
47392955_2208499776075530_2285177786953891840_n.jpg453×675 92.5 KB
47396785_2208506269408214_4422156202645913600_n
47396785_2208506269408214_4422156202645913600_n.jpg720×960 80.4 KB
47420846_2208499929408848_4184426009010896896_o
47420846_2208499929408848_4184426009010896896_o.jpg1013×770 83.8 KB
47431702_2208506502741524_7022209608416493568_n
47431702_2208506502741524_7022209608416493568_n.jpg802×960 113 KB
47436205_2208499956075512_8031845493585739776_o
47436205_2208499956075512_8031845493585739776_o.jpg1034×861 157 KB
47467665_2208506442741530_2473874971785428992_n
47467665_2208506442741530_2473874971785428992_n.jpg874×960 102 KB
47469072_2208506209408220_893383283813908480_o
47469072_2208506209408220_893383283813908480_o.jpg1019×776 160 KB
47482761_2208506546074853_7733848091219984384_n
47482761_2208506546074853_7733848091219984384_n.jpg941×960 135 KB
47495075_2208506399408201_7991354878381260800_n
47495075_2208506399408201_7991354878381260800_n.jpg939×960 98.4 KB
47572747_2208499802742194_7115139497972465664_n
47572747_2208499802742194_7115139497972465664_n.jpg424×558 66.8 KB
47575178_2208506362741538_5890553028058021888_n
47575178_2208506362741538_5890553028058021888_n.jpg902×873 111 KB
47576347_2208499866075521_7624371492263821312_o%20(1)
47576347_2208499866075521_7624371492263821312_o (1).jpg988×647 153 KB
Uploading: 47576347_2208499866075521_7624371492263821312_o.jpg…
50434582_2236701226588718_7944828343772250112_o
50434582_2236701226588718_7944828343772250112_o.jpg1280×960 154 KB

4 Likes
11

Wow great!

I love to look at things I can’t afford (at least if they are far enough above the budget) :wink:

Maybe some inspiration for @brodric‘s next investment :wink:

1 Like
12

image
image.jpg2048×1152 625 KB

One of my good friends is good at building them lol 550 kg lol

13
14

I bought this App and - I’m sorry to say - can not recommend it.
I find the user interface and interaction design mediocre. The results are not very detailed and sometimes confusing.
My system rated “green” in all tests, which was to be expected, but I learned nothing more than that.

1 Like
15

Thanks for the review!

1 Like
16

Thanks for the photos! Wow some interesting builds for sure!

1 Like
17

amazing rooms.

Although I think the one with the bathtub (and the old guy in it) is a little bizarre. :thinking:

apologies if it’s one of y’all

1 Like
18

Those are my choice for diffusion. Yes, they’d be heavy but non-absorbent (if painted) compared to hollow plastic products, offers a quadratic variation of depth for the mathematically correct distribution in diffusion in both horizontal and vertical planes (versus those shown above), and an easy DIY project. Here’s a link for building them yourself:

http:/www.pmerecords.com/Diffusor.cfm

1 Like
19

Nice bro…

20

image
image.jpg1024×559 126 KB