Log in
Register
Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
News
Members
Current visitors
New profile posts
Search profile posts
Features
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Menu
Install the app
Install
Reply to thread
Home
Forums
Low Earth Orbit
DIY Audio
60 Degree DIY Mid Hi - AKA PM60
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Peter Morris" data-source="post: 142042" data-attributes="member: 652"><p>Re: 60 Degree DIY Mid Hi</p><p></p><p></p><p></p><p>A lot of the people I see using Smaart don’t really understand exactly what they are measuring.</p><p></p><p>If you use an FFT with a time window that’s big enough to capture the low frequencies you are usually capturing other stuff you don’t want that mucks up your measurement.</p><p></p><p>There are basically two solutions – measure it in an anechoic chamber – or measure it a long way away from any boundary’s (12ft in the air or more) where the mic is relatively close (6 ft) to the speaker. </p><p> </p><p>Note: this is a mid-Hi box operating from 100Hz up (100Hz wave length = 11.15ft, 10ms per cycle). For low frequency you can place the mic on the ground.</p><p></p><p>As a practical solution your setup with the ground sloping away looks great.</p></blockquote><p></p>
[QUOTE="Peter Morris, post: 142042, member: 652"] Re: 60 Degree DIY Mid Hi A lot of the people I see using Smaart don’t really understand exactly what they are measuring. If you use an FFT with a time window that’s big enough to capture the low frequencies you are usually capturing other stuff you don’t want that mucks up your measurement. There are basically two solutions – measure it in an anechoic chamber – or measure it a long way away from any boundary’s (12ft in the air or more) where the mic is relatively close (6 ft) to the speaker. Note: this is a mid-Hi box operating from 100Hz up (100Hz wave length = 11.15ft, 10ms per cycle). For low frequency you can place the mic on the ground. As a practical solution your setup with the ground sloping away looks great. [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Low Earth Orbit
DIY Audio
60 Degree DIY Mid Hi - AKA PM60
Top
Bottom
Sign-up
or
log in
to join the discussion today!