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
Pro Audio
Junior Varsity
Help me understand system limiting- setting it
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="Art Welter" data-source="post: 130491" data-attributes="member: 52"><p>Re: Help me understand system limiting- setting it</p><p></p><p></p><p>Tim,</p><p></p><p>I see two problems problem with your method, one is measuring voltage with a pink noise source, and the other is the noise source, pink noise has a crest factor of 12 dB, while some EDM (electronic dance music) has a crest factor of only 3 dB in the LF, <strong>eight times</strong> more average power than pink noise. To be safe from that kind of "music", average ("rms") power should be limited to about half to 3/4 the AES 1984 rating (there now is an AES 2012 rating using 12 dB crest factor pink noise...), which uses a pink noise signal with a crest factor of 6 dB. You could use a sine wave at Fb (box tuning, impedance minima) with your method to be safe.</p><p></p><p>Peak voltage ideally would be set with a frequency dependent curve based on driver excursion, but in general twice the AES 1984 rating will be in the safe zone, though won't address distortion. That said, distortion makes music "sound louder", so letting peaks distort may satisfy the customer better...</p></blockquote><p></p>
[QUOTE="Art Welter, post: 130491, member: 52"] Re: Help me understand system limiting- setting it Tim, I see two problems problem with your method, one is measuring voltage with a pink noise source, and the other is the noise source, pink noise has a crest factor of 12 dB, while some EDM (electronic dance music) has a crest factor of only 3 dB in the LF, [B]eight times[/B] more average power than pink noise. To be safe from that kind of "music", average ("rms") power should be limited to about half to 3/4 the AES 1984 rating (there now is an AES 2012 rating using 12 dB crest factor pink noise...), which uses a pink noise signal with a crest factor of 6 dB. You could use a sine wave at Fb (box tuning, impedance minima) with your method to be safe. Peak voltage ideally would be set with a frequency dependent curve based on driver excursion, but in general twice the AES 1984 rating will be in the safe zone, though won't address distortion. That said, distortion makes music "sound louder", so letting peaks distort may satisfy the customer better... [/QUOTE]
Insert quotes…
Verification
Post reply
Home
Forums
Pro Audio
Junior Varsity
Help me understand system limiting- setting it
Top
Bottom
Sign-up
or
log in
to join the discussion today!