Study Hall
Sponsored by
Audio Technica

Transfer Function Measurements With Smaart v8

Why measurements are a quicker and safer way to optimize a sound system than doing it by ear...

By Joan La Roda January 30, 2019

Image courtesy of Rational Acoustics

Configuring Inputs And Outputs In Smaart v8

We’ll assume that both the sound card and Smaart v8 (in that order) have already been installed on the computer. The first time we run Smaart we’ll be presented with a menu that takes us to the configuration for inputs and outputs, i.e., the screen you can see in figure 9.

If, for whatever reason this does not happen, or we wanted to change the sound card, we would open the drop-down Config menu from the top bar as seen in figure 8 and take it from there.

Config–> I-O Config

Figure 8: Configuration menu for inputs and outputs.

On the I-O Config tab –> Input Devices,

Figure 9: Input selection.

At the top of the page, select the sound card.

At the bottom of the page, select the two input channels and, clicking on “Friendly Name,” assign the names “Microphone” and “Reference” to channels 1 and 2 respectively and unselect the rest.

Next, click on Output Devices,

Figure 10: Selecting the outputs.

At the bottom of the page, select the two output channels and, clicking on “Friendly Name,” assign the names “Out1” and “Out2” to channels 1 and 2 respectively and unselect the rest. Now click on the OK button on the bottom right.


Read the rest of this post

1
2
3
4
5
6
7
8
9
10

Comments

Have something to say about this PSW content? Leave a comment!

Scroll past the ”Post Comment” button below to view any existing comments. Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Fedele says

For now i have just read only introduction and... desagree.
Sofwares are just tools based on numbers! Calculations on numbers, made across many kayers of approximation and errors.
Reality, the Sound Phenomena, the Human way to ear, are more complex tan that.
In a concert, there are many forms of energies that analyzer don’ t measure ( remember...also just calculations on numbers and a 1/4 capsule here or there) but that caracterize our complex sensation.

Seth Morth says

Fedele is missing the point, and should have read the rest of the article before commenting.

This is a helpful guide in how to use Smaart8 to get the sound system to an (objectively) calibrated baseline. Occasionally this is referred to as "flat" but that is rather misleading; consider it "time aligned, checked for phase, and compensated for detrimental artifacts".

From this milestone you can then trust your ears to make (subjectively) changes as desired to have it sound the way you would like it to.

I would in fact like to hear more from Joan La Roda, as well as José Brusi, Xesc Canet, Pepe Ferrer, José Moldes, Germán Ramos, James Woods, and Jamie Anderson. They always have an open invitation to visit my workplace and command my attention when they publish an article.

Fedele says

And also.....
There are other conditions for cancellation!! It is not only problem of relative time As it is writed.

Fedele says

Good evening.
In addition to what I have already written, and which I will soon write,...
I also have to underline how, quoting this part of the text:
"When two acoustical waves reach the same point with a time difference, there will be a total cancellation ...etc"
There are other conditions for cancellation!! It is not only problem of relative time.
Fedele De Marco

Tagged with:

Subscribe to Live Sound International

Subscribe to Live Sound International magazine. Stay up-to-date, get the latest pro audio news, products and resources each month with Live Sound.