Rew Hardware Recommendations For Mac
Minimum: Entry-Level Configuration Operating System ¹ Microsoft® Windows® 7 SP1 64-bit: Windows 7 Enterprise, Ultimate, Professional, or Home Premium Microsoft® Windows® 8 64-bit: Windows 8 Enterprise, Pro, or Windows 8 Microsoft® Windows® 8.1 64-bit: Windows 8.1 Enterprise, Pro, or Windows 8.1 CPU Type Single- or Multi-Core Intel® Pentium®, Xeon®, or i-Series processor or AMD® equivalent with SSE2 technology. Highest affordable CPU speed rating recommended.
Autodesk® Revit® software products will use multiple cores for many tasks, using up to 16 cores for near-photorealistic rendering operations. Memory 4 GB RAM. Usually sufficient for a typical editing session for a single model up to approximately 100 MB on disk. This estimate is based on internal testing and customer reports. Individual models will vary in their use of computer resources and performance characteristics. Models created in previous versions of Revit software products may require more available memory for the one-time upgrade process. Video Display 1,280 x 1,024 with true color Video Adapter Basic Graphics: Display adapter capable of 24-bit color Advanced Graphics: DirectX® 11 capable graphics card with Shader Model 3.
Disk Space 5 GB free disk space Media Download or installation from DVD9 or USB key Pointing Device MS-Mouse or 3Dconnexion® compliant device Browser Microsoft® Internet Explorer® 7.0 (or later) Connectivity Internet connection for license registration and prerequisite component download. Value: Balanced price and performance Operating System ¹ Microsoft® Windows® 7 SP1 64-bit: Windows 7 Enterprise, Ultimate, Professional, or Home Premium Microsoft® Windows® 8 64-bit: Windows 8 Enterprise, Pro, or Windows 8 Microsoft® Windows® 8.1 64-bit: Windows 8.1 Enterprise, Pro, or Windows 8.1 CPU Type Multi-Core Intel® Xeon®, or i-Series processor or AMD® equivalent with SSE2 technology.
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Highest affordable CPU speed rating recommended. Autodesk® Revit® software products will use multiple cores for many tasks, using up to 16 cores for near-photorealistic rendering operations. Memory 8 GB RAM. Usually sufficient for a typical editing session for a single model up to approximately 300 MB on disk. This estimate is based on internal testing and customer reports. Individual models will vary in their use of computer resources and performance characteristics.
Models created in previous versions of Revit software products may require more available memory for the one-time upgrade process. Video Display 1,680 x 1,050 with true color Video Adapter DirectX® 11 capable graphics card with Shader Model 3. Disk Space 5 GB free disk space Media Download or installation from DVD9 or USB key Pointing Device MS-Mouse or 3Dconnexion® compliant device Browser Microsoft® Internet Explorer® 7.0 (or later) Connectivity Internet connection for license registration and prerequisite component download. Performance: Large, complex models Operating System ¹ Microsoft® Windows® 7 SP1 64-bit: Windows 7 Enterprise, Ultimate, Professional, or Home Premium Microsoft® Windows® 8 64-bit: Windows 8 Enterprise, Pro, or Windows 8 Microsoft® Windows® 8.1 64-bit: Windows 8.1 Enterprise, Pro, or Windows 8.1 CPU Type Multi-Core Intel® Xeon®, or i-Series processor or AMD® equivalent with SSE2 technology. Highest affordable CPU speed rating recommended.
Autodesk® Revit® software products will use multiple cores for many tasks, using up to 16 cores for near-photorealistic rendering operations. Memory 16 GB RAM. Usually sufficient for a typical editing session for a single model up to approximately 700 MB on disk. This estimate is based on internal testing and customer reports. Individual models will vary in their use of computer resources and performance characteristics. Models created in previous versions of Revit software products may require more available memory for the one-time upgrade process.
Video Display 1,920 x 1,200 with true color Video Adapter DirectX® 11 capable graphics card with Shader Model 3. Disk Space 5 GB free disk space 10,000+ RPM (for Point Cloud interactions) or Solid State Drive Media Download or installation from DVD9 or USB key Pointing Device MS-Mouse or 3Dconnexion® compliant device Browser Microsoft® Internet Explorer® 7.0 (or later) Connectivity Internet connection for license registration and prerequisite component download. Citrix®: Recommended-Level Configuration ² Citrix System XenApp® 6.0 XenApp® 6.5 Feature Pack 2 Citrix® License Manager Citrix® Profile Manager Server OS As specified by XenApp® system requirements Authentication Microsoft® Active Directory. Roaming Profiles supported Client OS Microsoft® Windows® 7 SP1 64-bit Microsoft® Windows® 8 64-bit Microsoft® Windows® 8.1 64-bit Client Browser Microsoft® Internet Explorer® 7.0 (or later) User Access Client computers should be bound to the network domain.
Each client computer should have either the installed. Users should use their domain logins to access both the Citrix web console and the LAN.
System requirements for Autodesk® Revit® Server 2015 Operating System Microsoft® Windows Server® 2008 R2 SP1 64-bit Microsoft® Windows Server® 2012 64-bit Microsoft® Windows Server® 2012 R2 64-bit Web Server Microsoft® Internet Information Server 7.0 (or later) CPU Type 4+ cores 2.6 GHz+ 6+ cores 2.6 GHz+ 6+ cores 3.0 GHz+.
A-Weighting - is for general sound level readings, say in a auditorium or similar. Using the old Radio Shack Meter as an example, A-Weighting measure in the frequency range of 500hz to 10khz. C-Weighting - is more full range with in the frequency limits of the meter. Again using the Radio Shack Meter as an example, C-Weighting is from 32hz to 10khz. Most meters, other than Radio Shack (no longer made, but found on Ebay), respond in the roughly 30hz to 8khz range. That range covers the Fundamental range and extends up one octave into harmonics. Though far more complex, if you want to do some serious measurements of your equipment and/or your room, then REW (Room EQ Wizard) is fantastic FREE Software.
Bare minimum, you could buy a full-range USB Microphone for about $50, download the Software for Free, and have a complete Audio Analysis system. You can find videos on YouTube explaining how to setup and use Room EQ Wizard.
And REW does have among other things a built in SPL meter, but it does so much more. More ideally you would get XLR Microphones and a small Mixer.
That would cost about $150 (best guess) but if you had to pay for the software it would be $500 or MORE. The people at Home Theater Shack have gotten together and collectively written this software, and it is pretty sophisticated. Here is a link to Room EQ Wizard - Here is more detailed information on the features - Here are some suggestions for equipment - And here is one of many videos about REW. I would buy the Umik for less than $100 which will be infinitely more useful and more accurate than a cheap SPL meter. Use with the REW which is free and pretty easy to use. I remember seeing you recently purchased dual subs.
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Without a measuring mic, you have no idea what is actually going on and you could be leaving a lot of your systems potential unused as most room corrections if you are using one do not get the sub distance correct/optimal(leaving a dip in the frequency response) and the only way to know is to measure with a mic and REW or something similar. I would buy the Umik for less than $100 which will be infinitely more useful and more accurate than a cheap SPL meter. Use with the REW which is free and pretty easy to use. I remember seeing you recently purchased dual subs. Without a measuring mic, you have no idea what is actually going on and you could be leaving a lot of your systems potential unused as most room corrections if you are using one do not get the sub distance correct/optimal(leaving a dip in the frequency response) and the only way to know is to measure with a mic and REW or something similar.
I have actually bought 4 subs. Dual subs for 2 different rooms/projects. That's a great link. Thanks for sharing.
You need a measurement mic, not a vocal or other mic. I have one, this one in fact: - and more invested in the preamp and SW. There are cheaper measurement mics, but you'd be much better off picking up a CSL-calibrated UMIK-1 from and downloading REW (free). That combination will not match the dynamic range of my 'big' system but is now the one I use all the time because it is way more convenient, easier to use, and for home audio analysis essentially exactly matches the performance of my Earthworks mic and system.
I am frankly vexed by how little it takes to get essentially pro-level measurements of a few years ago in the home these days. FWIWFM - Don. Thanks for the responses. So just to begin with should I buy a used Radio Shack spl meter on eBay? If you can find one - Yes, though the meter linked to by others is probably fine. Since the Radio Shack meter was so popular, you should be able to find Calibration Files for it, so that you can extend the range beyond 32hz to 10kz. The Calibration file simply gives a Plus or Minus adjustment to bring the meter to flat.
To illustrate, it might be 0db at 32hz, -3db at 25hz, and minus -6db at 20hz. That means if you adjust the readings by +3db at 25hz and +6db at 20hz, you will have the equivalent of a flat response microphone.
The come in two types, one has an analog dial meter on it, the other has a digital read out. Either one is fine, though people tend to have a preference for one over the other.
Myself I have the one with the Digital Read Out. @ thanks for the detailed write-up! I've been wondering about REW myself, I know once I complete my DIY sub with iNuke dsp I will need it. Luckily I have a HTPC that doubles as a DAW (digital audio workstation) for music recording/composition.
I have a Focusrite Scarlett 2i2 for audio I/O, as well as a few mics, tho I have no idea if they would be suitable for REW. The Focusrite Scarlett is ideal, but the mics are common Dynamic Vocal Mics. You probably need Condenser Mics that are flatter and have a wider frequency response. These are the two most common USB Microphones - Dayton Audio UMM-6-USB - $89 - MiniDSP UMICK-1 - $85 - These are full range very flat Omini-Directional Measurement and Calibration grade microphones.
I think if you got to the Dayton Audio Website, enter the Serial Number, you can down load a calibration file for the Datyon Mic, Not sure about the MiniDSP, but there is probably a way to get a Calibration File for it. The Calibration File increases the accuracy of the response in software like REW. In more Standard XLR Microphones, these are the most popular - Dayton Audio EMM-6 XLR Condenser Measurement Microphone - $47 - Behringer ECM8000 Measurement Microphone - $59 - All of these are in common use for Home Audio people, and are well regarded for the money. There is one additional Low-Cost Option. There are very sophisticated Audio Apps for Smart Phones and other Smart Devices. You simply got the the App Store, and down load an Audio App that has the features you need. Many are free and many others are relatively low cost.
Android App Store Search - Audio Measurement - Android App Store Search - SPL Meter - You can even get an improved Condenser Microphone for your Smart Device - Dayton Audio iMM-6 Calibated Measurement Microphone for iPhone, iPad, and Android - $15 - You have to decide if you need Precise or Relative Measurements. Because there is no way to calibrate you phone, when it says 90db, you have no way to verify that it is actually 90db. It could be 89db or it could be 91. However, while Smart Phone are not necessarily accurate, they are consistent, which is why they are OK for Relative Readings. Do you need to know that the sound level is precisely 90db, or do you need to know the difference between two measured sound levels?
The Phones are consistent, so if it says there is a 5db difference between the first reading and the second reading, you can depend on that to be accurate. So, it is a question of absolute precision readings, or comparing relative readings. For comparing before and after, or relative readings, a Smart Phone App is fine. They are consistent and uniform, just not guaranteed to be accurate. So, a good Smart Phone or Smart Pad/Smart Tablet, and the Dayton iMM-6 Mic, you can get very decent comparative readings for very little money. If you look at the TV in the background of these videos, you will see either an SPL Meter or a Dynamic Frequency Response Graph, these displays are coming from an App on his Smart Device that is being mirrored to the TV.
You need a measurement mic, not a vocal or other mic. I have one, this one in fact: - and more invested in the preamp and SW.
There are cheaper measurement mics, but you'd be much better off picking up a CSL-calibrated UMIK-1 from and downloading REW (free). That combination will not match the dynamic range of my 'big' system but is now the one I use all the time because it is way more convenient, easier to use, and for home audio analysis essentially exactly matches the performance of my Earthworks mic and system. I am frankly vexed by how little it takes to get essentially pro-level measurements of a few years ago in the home these days. FWIWFM - Don Right on, thanks.
Would I be better off with this, since I already have phantom power? Or does the one you linked work better? Though there are many others, this Audio Tools App seems very popular and generally well rated - Price = $8 - Audio Tools for Android - The same company also makes a more basic SPL Meter - To my original Post above, I added a Android App Search for 'SPL METERS' - Most of these are far more sophisticated than a simple SPL Meter.
You can see there are many 4-Star and 5-Star rated Apps available. According to the Audio Tools Website, Audio Tools got a recommendation for 'Sound and Vision' Magazine. @ Holy cow, thanks for the amazingly detailed response! So for me, it looks like it's between the emm-6 or imm-6. Emm-6 Pros: Precise measurement (not sure if this matters, other than for bragging rights; i.e.
'I can hit 120db at 20hz') Cons: Price Stuck in my bedroom with my PC (no laptop) Imm-6 Pros: Price Mobile (could take it to friends house and help him) Cons: Can't run REW (is this a big deal? Does REW have features that I'll miss with mobile apps?) It looks like they both have the same frequency response, so it's a wash there. Am I missing anything? The price difference isn't a big deal, I'm guessing the biggest thing would be no access to REW. Right on, thanks. Would I be better off with this, since I already have phantom power?
Or does the one you linked work better? IIRC the UMIK-1 has a bit lower noise floor (lower self-noise) than the Dayton but I was comparing USB versions. Note the link I provided is for an individually calibrated mic; you can buy a UMIK-1 from miniDSP for a little less but the anal engineer in me overrode the cost-conscious country boy and I got the calibrated version.
I also wanted a USB mic for convenience (no more plumbing my mic preamp/ADC), and it replaces the mic used by my processor (including the cal file), so I can get double duty from it. The latter was actually a big deal; I could flip from calibration to measuring without replumbing and rapidly toggle back and forth on my notebook between the calibration app (Dirac Live) and REW. Turned out to be a big plus for me.
The Behringer ECM8000 is another popular inexpensive measurement mic, and again IIRC is a little noisier than the UMIK-1. All use a similar capsule and for home audio are more than adequate, but when cherry picking the pits, the UMIK-1 came out on top for me. I have not really looked at either of them much since picking up the UMIK-1 a few years ago and since I already had the Earthworks (which blows them all away as a native mic, but at 10x the cost). Chances are you'd be fine with any of them, but when I researched (a few years ago) the UMIK-1 edged the others out for features and performance. There are several other high-end measurement mics around, and also calibrated mics like those Audio Precision is selling now, but you pay dearly for them.
Or I did, anyway. You'll have to have a mic pre, and maybe a USB interface (can also use line-in - would not depend on the PC's mic preamp as most generic ones are too noisy) for the non-USB versions to run REW, natch, but you already have that. The question is if you want to lug it out every time you do a measurement. It gets old, or did for me anyway, especially since my 'good' preamps are not USB-powered. I'd personally skip the SPL meter unless you have a real need/use for it. I get mine out about once a year for grins but all measurements are using REW.
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Just sooo much more info for the effort. And cheap SPL meters can be 2-3 dB off in absolute amplitude vs. 1 dB or less for the calibrated mics, even glossing over the LF roll-off, so again I just rarely have a need for the SPL meter. (I had a wideband SPL meter but sold it; a new one is up around $1k or so so is not something you'd purchase without a real need - the inexpensive models are good enough for most home use except sub measuring and tuning.) It's mainly to see roughly how loudly things are playing or when I want to play mean old dad and yell at the kids for how loudly they are running their systems at 1 am.
@ Holy cow, thanks for the amazingly detailed response! So for me, it looks like it's between the emm-6 or imm-6.
Emm-6 Pros: Precise measurement (not sure if this matters, other than for bragging rights; i.e. 'I can hit 120db at 20hz') Cons: Price Stuck in my bedroom with my PC (no laptop) Imm-6 Pros: Price Mobile (could take it to friends house and help him) Cons: Can't run REW (is this a big deal? Does REW have features that I'll miss with mobile apps?) It looks like they both have the same frequency response, so it's a wash there. Am I missing anything? The price difference isn't a big deal, I'm guessing the biggest thing would be no access to REW. You have to look at what you are trying to accomplish.
The REW is very sophisticated, but you have to have a computer to make it work. A Smart Phone with your choice of many free or paid software Apps, is cheap and easy, and perhaps relatively accurate, though more importantly the Smart Phone would be consistent. Very basic SPL Meter Apps are far more sophisticated than a simple SPL Meter. Many of even the most basic SPL Apps will display a frequency response graphs.
Though whether you can capture that graph and overlay it on another graph for comparison is unlikely. Give that the most expensive Smart Phone App, at least on a quick look, was $8, and the Microphone was $15, you get a pretty good pretty sophisticated device for $23. I suspect most people who were not cash and computer strapped would have both. But keep in mind it is about what you want to do, if you want readings that are general and not frequency specific, a FREE SPL App and the Smart Phone Mic would be fine. However, if Frequency Response graphs or Frequency specific measurements need to be taken, better software and a better mic are to your advantage. But then a very sophisticated App with a improved microphone is only $23.
Just to give you some sense of the value of the REW Software, here is Dayton Audio's own Audio Analysis Software - Datyon Audio OnmiMic V2 Precision Room Measurement Software with Microphone - $300 - Most would consider $300 to be very cheap for this software. So, REW for Free is the deal of the Century. This software was written by an all volunteer group of people from (I believe) Home Theater Shack Forum. If you watch the video for REW that I linked to or any of the many other REW videos on YouTube, you will see that this is a very sophisticated program. And the price is right. There are a few Videos for the Dayton OmniMic V2 system, so you could compare to REW. I think a valuation of REW at $500 is conservative.
Many times you get what you pay for.inexpensive (under $30) SPL Meters typically do NOT have the requisite FLAT 'Type C' Weighting in addition to 'Type A' Low Freq Roll-off needed to perform OSHA 'Ear Safety' Test. Slightly more expensive SPL Meters typically do NOT have a compatible Interface usually Analog Stereo L/R 3.5-mm Jack to connect to PC in order to run FREE REW, FREE plus TrueRTA and other Real Time Spectrum Analyzer software some 'Integrated Systems' use USB which MAY or usually NOT be compatible with TrueRTA and REW, looking like any other Sound Card. You MAY or MAY NOT save $$$'s by buying JUST a CALIBRATED Microphone, which MAY ALSO need a Preamp MIC input on Laptop is probably NOT FLAT, whereas Audio IN/OUT are FLAT.and also means you'll always need PC (or CellPhone/Tablet) when you make measurements. FWIW: I couldn't locate website for 'FunLand' SPL Meter mentioned above, nor could I located a User's Manual. Since Amazon did NOT mention an Analog Audio Output I/F, I presume it does NOT have this IMPORTANT feature for use with TrueRTA, REW, et.al.
BTW: TrueRTA is MUCH easier to learn and use than REW.which has a LOT more useful features that you MIGHT want in the future.fortunately either is FREE.sorta. FREE TrueRTA requires 1/3 Octave Noise Sources, whereas extra cost buys 1/3 Octave Analysis capability which can be used with Full Band PINK Noise Source to speed up measurements into just ONE RUN, rather than many small runs.
Quick search of Amazon revealed fol. Which provide both Type A/C Weightings and have Analog Audio Output I/F: Plus Logging via USB I/F Plus Logging via USB I/F One of my posts on this subject includes a link to 1/3 Octave (and Full-Band) Noise Sources and someone else's review of various SPL Meters.
There is one other source of Sound Analysis Software - True Audio TrueRTA - Real Time Analysis - from Free to $100 depending on the resolution - 1/3rd and 1/6th Octave are probably fine for most uses. For extremely precise analysis, 1/24th Octave is worth considering. This company also makes Speaker Design Software - WinSpeakerz - $40 - The company also publishes a book that cover speaker design and testing focusing on its speicfic products. 'Learn About Loudspeaker Design' - Kindle = $10, Paperback = $25 - The TrueRTA is more about testing in real time, rather than storing for long term analysis. Just a bit of additional information. Many times you get what you pay for.inexpensive (under $30) SPL Meters typically do NOT have the requisite FLAT 'Type C'. You MAY or MAY NOT save $$$'s by buying JUST a CALIBRATED Microphone, which MAY ALSO need a Preamp.
One of my posts on this subject includes a link to 1/3 Octave (and Full-Band) Noise Sources and someone else's review of various SPL Meters: I think it is down to what you want to do. The more complex and demanding the task, the more expensive the cost. I suspect a professional grade Audio Analysis and Test system would run about $3000, but do you actually need to do $3000 worth of work. Stated another way, can you needs be justified by the $3000 cost? For very basic broad and general measurements, likely free or low cost Phone App with perhaps a supplemental mic, might be more than enough.
For others between a $75 and $175 investment in REW and associated hardware should serve the need far beyond that of many home hobbiest, and low-level professionals. For Real Time Analyses, TrueRTA at about $40 (1/3rd octave) to $70 (1/6th octave) might be more than enough. I gave a full range of options, all workable. From a Free App for a Cell Phone, to an App plus microphone, to a paid App plus Microphone ($23), to intermediate software, to extended software. It is up the the person with the need to determine the degree of investment that is necessary for the task at hand.
For basic relative measurements, a Free SPL Amp and a Cell Phone is all you need. How far anyone wants to take it above that is up to them. I'm not saying or even implying that you are wrong, only saying that a person should spend appropriately to their needs and wallet. I have a Radio Shack SPL Meter, but I've had it for 10 years. I would rather have REW, but can't afford (or justify) the $75 to $175 for additional equipment just to test my system. I would still like to have it.
I could perhaps justify TrueRTA, though its function is slightly different than REW. Still it would be fun to have, but that is still an investment of roughly $150 for mic and software, so for $25 more I might as well get REW.
As to test tone, I have several on my computer, and burned to CD. I have 1/3rd Octave (31 tones), 1/6th Octave (63 tones), plus a slow bass sweep from 10hz to 300hz moving up 10 hz every 10 seconds ( RealTraps), and several copies of a Pink Noise file that will play one after the other.
All downloaded from the Internet; all free. I think you can find many variations of Test Tone Files on YouTube, though I'm not sure that would be my first choice. I've use the bass sweep and SPL Meter to map out the low end frequency response of my speakers. I've stepped though the 1/3rd Octave Test Tones to get a broad sense of the full range response of my speakers.
Though that is a slow and tedious process compared to one simple WOOOP of REW and having your speaker's response plotted out on logarithmic graphs. So, spend appropriate to the job you need done. Given that a Cell Phone App with or without the external Mic is cheap to virtually free, that's not a bad first place to start. How far do you want to and need to take it from there???? I haven't bought anything yet.
Still waiting for my 2 sets of dual subs to arrive. Keep in mind there doesn't have to be one and only one definitive solution. If you have a smart phone, you can get an SPL App for free, in fact, you can get many of them for free. The one paid one that I found was $8, and if you want to add the Dayton Mic to the Smart Phone, that's only $15. But neither is really required. Just find a popular SPL App with lots of downloads, and you are probably set. We have presented a range of options, you might want to start with one now, and move on to other in the future.
Like I said, you are limited to one and only one solution.