From there you will be able to measure one path against the other which should present you with identical signals and this will display as a perfect frequency and phase response with 0 latency. Then you will send pink noise out of both outputs and physically route it back into the inputs.
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The basic idea is to patch output 1 into input 1, output 2 into input 2. Maybe your audio interface has the Neutrik combo connectors for inputs in which case use TRS to TRS cables to be safe. If possible use your line outputs and patch them into line inputs. WARNING!!!! DO NOT PATCH AN OUTPUT INTO AN INPUT WITH PHANTOM POWER TURNED ON. In order to do this you will need (2) cables (likely TRS to TRS or TRS to XLR male) jumper cables. You’re going to measure one channel of your audio interface against another channel. MEASUREMENT EXPERIMENT 1 – loop out / in measurement (doesn’t involve a speaker or a microphone).
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STEP 3 – Once you have SMAART 7 DI installed on your computer and your gear and rig configured as explained in the PDF documents above, it’s time to make some measurements.
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Once your SMAART DI demo expires you can install the full version and get to play with the more advanced features like Live IR and having multiple Transfer Functions displayed at the same time.Ĭhoosing a Laptop Computer for Smaart – PDF Remember to download both demos but only install the DI version. Here is a page that explains the differences between the two apps. Only install SMAART 7 DI first and once it expires, you should be ready to experiment with SMAART 7. But before you spend a dime, download the SMAART 7 DI and SMAART 7 demos which will give you 30 days to experiment with each app. This makes SMMART 7 DI a fairly safe purchase. If you realize you want to upgrade, the full version of SMAART 7 is available for the price difference directly from Rational Acoustics. You can start out with the SMAART 7 DI (2 channel version) if you think you won’t need more than 2 channels of measurement options at a time. While SMAART isn’t inexpensive, there is no risk involved if you evaluate the applications via their 30 day demos. I have to recommend SMAART for those reasons alone. Why SMAART and not some other audio measurement app? While I use more than one measurement app personally and each one offers something unique, Rational Acoustics SMAART is the industry standard for audio measurements and it works with both PC and MAC. Here are the demo versions of SMAART 7 DI (2 channel version) Step 1 – Download the Smaart 7 DI & Smaart 7 demo but only install the Smaart 7 DI demo for now.
If you follow these steps in order, you should be able to bail out of the concept without spending a lot of money and still have something useful. Like purchasing a Casio keyboard before you buy a Steinway grand piano. The following steps are in order to avoid spending lots of money before you know whether you’re committed to the concept. This could be a guitar, bass amp or even your home stereo.
(1) speaker (self powered or with an amp) that you can send sound to from your audio interface. For now you just need a working microphone) (1) microphone (could be a Shure SM58 / SM57 / etc.
(1) a USB or FW audio device with at least (2) mic / line input channels and at least (2) line level outputs (1) working and modern PC or Mac (preferably a laptop but could be a desktop machine) This page assumes you have access to the following: Are you ready to assemble an audio measurement rig?įollow the steps on this page and contact me with questions.