Breaking in new speakers -BROWN NOISE - diyAudio
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Old 9th July 2011, 11:10 PM   #1
GeneZ is offline GeneZ  United States
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Default Breaking in new speakers -BROWN NOISE



Not here to debate the merits of speaker breaking in. I know some folks see no sense in it. The manufacturer of my speakers recommends it as a viable option, so I am going to try it.

Simply Noise has an interesting web page. It offers, white - pink - and brown noise.


SimplyNoise - The Best Free White Noise Generator on the Internet.


Also offered is an option for oscillating the noise with a choice of three different speeds.

The manufacturer recommends running in (breaking in) for about twenty hours for optimal sound. Would anyone here know if any particular noise would be a better choice? I am using brown noise because I believe it produces more woofer excursion over all. I also find it soothing to listen to. Would another noise be a better choice?



Thanks in advance..
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Old 9th July 2011, 11:28 PM   #2
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White noise contains all frequencies at the same level.
By the time it makes a difference for your woofers you might run the danger of damaging the tweeters.

I would suggest pink noise where the treble rolls of gently. Closer to reality as well as far as noise goes.

Better still use a mono music signal, feed it to both but invert one speaker. Now place them facing each other as close as possible.

Last edited by Charles Darwin; 9th July 2011 at 11:33 PM.
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Old 9th July 2011, 11:37 PM   #3
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Actually, breaking in speakers is a fact, the materials used for spiders and surrounds will go through subtle changes with use. What most of us technical types don't give much credence to, are the claims that things like interconnects and speaker wire need to be broken in. So as far as I'm concerned, mechanical things may need breaking in, but non-mechanical things don't. As far as claims that using one type of signal over another is a better way to do it, well I think it will happen quicker with signals that mechanically exercise the drivers more, but just normal use will also do the job.

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Old 9th July 2011, 11:43 PM   #4
sreten is offline sreten  United Kingdom
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Hi.

Oscillating noise at three different speeds ? I don't think so.

Pink noise is the obvious break in signal, same energy per octave.
Brown noise, or 1/f noise possibly more useful for bass or subs.

rgds, sreten.

White noise is constant energy per Hz bandwidth, will fry tweeters.
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Old 9th July 2011, 11:45 PM   #5
GeneZ is offline GeneZ  United States
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I live in an apartment. The noise would be innocuous to the neighbors (if they could even hear it). Pounding music is not what I want. That's why I chose it. Just wondered if the noise would be as effective.
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Old 9th July 2011, 11:47 PM   #6
AllenB is offline AllenB  Australia
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A sinewave tuned to fs will allow you to more accurately excercise the suspension to it's limit, with little power needed and it wouldn't be as annoying.
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Old 9th July 2011, 11:53 PM   #7
sreten is offline sreten  United Kingdom
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Hi,

Pink noise is appropriate, brown noise is some sense is more typical of
recorded music spectra, and regarding speaker break in, the signal
that would exercise the bass drivers suspension the most.

rgds, sreten.
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Old 9th July 2011, 11:59 PM   #8
GeneZ is offline GeneZ  United States
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Quote:
Originally Posted by sreten View Post
Hi.

Oscillating noise at three different speeds ? I don't think so.
I thought that might cause the drivers to move in and out more, rather than sitting at a constant volume.

Quote:
Pink noise is the obvious break in signal, same energy per octave.
Brown noise, or 1/f noise possibly more useful for bass or subs.
Thanks.

Quote:
White noise is constant energy per Hz bandwidth, will fry tweeters.
Very much more, thanks! Fried tweeter wings, anyone?
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Old 10th July 2011, 12:02 AM   #9
GeneZ is offline GeneZ  United States
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Quote:
Originally Posted by sreten View Post
Hi,

Pink noise is appropriate, brown noise is some sense is more typical of
recorded music spectra, and regarding speaker break in, the signal
that would exercise the bass drivers suspension the most.

rgds, sreten.

That was my intuition.
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Old 10th July 2011, 06:36 PM   #10
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Quote:
Originally Posted by Charles Darwin View Post
White noise contains all frequencies at the same level.
yes but not equal power or energy...one of the two, as someone else said.

I would suggest pink noise where the treble rolls of gently. Closer to reality as well as far as noise goes.
yes, equal power per octave/band IIRC and this is best for tests IMHO if ANY noise is needed at all, white noise is pretty useless, unless for solitary confinement and mental torture of a hostage is required....

Better still use a mono music signal, feed it to both but invert one speaker. Now place them facing each other as close as possible.
how about mixing a pink noise source and 20-50hz swept sine wave........
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Last edited by mondogenerator; 10th July 2011 at 06:40 PM.
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