Want music as background noise for a gathering? DO THIS

[MisterKpak]

Im an engineer at a radio station, and this is a little trick i've picked up. Normal human conversation usually fills the lower mid range of the frequency spectrum. By reducing, or even removing these frequencies through the use of an EQ, or even some presets like Dynamic on TVs and such, you can have your music at a pretty good volume, AND still be able to have normal conversation. 

 

Anyone else have some sound tricks they use? I'd love to hear them. 

[SaladFingers]

I don't have any tricks, but thanks for sharing this. Would be something interesting to discuss with my sound geek friend and try out.

[Matt100HP]

I did not know this was a thing, it's a shame I'm a bit on the old side for house parties; this would have been very useful to know in years gone by! 

[EndlessOyster]

When at low volume levels increase low freq, and at high volume reduce low freq.
Reasoning is so that at low levels the sub is reviving a enough power to not damage it, and reduce it at high so the sub isnt over powering.

[SSL]

6 minutes ago, EndlessOyster said:

When at low volume levels increase low freq, and at high volume reduce low freq.
Reasoning is so that at low levels the sub is reviving a enough power to not damage it, and reduce it at high so the sub isnt over powering.

How would you damage a sub if the input level is low? (level, not power)

[EndlessOyster]

4 minutes ago, SSL said:

How would you damage a sub if the input level is low? (level, not power)

When sending very little power to the subs you can risk not send enough power to move the coil, its like when driving a car you lift the clutch up but dont press the accelerator and you stall the car because it doesnt have enough power to move its self.
Its not normally not a problem on mids or tweeters because they are smaller then the subs and dont need as much power to make the speaker work.

[SSL]

Just now, EndlessOyster said:

When sending very little power to the subs you can risk not send enough power to move the coil, its like when driving a car you lift the clutch up but dont press the accelerator and you stall the car because it doesnt have enough power to move its self.
Its not normally not a problem on mids or tweeters because they are smaller then the subs and dont need as much power to make the speaker work.

 

And that's a problem because?

[EndlessOyster]

Just now, SSL said:

 

And that's a problem because?

because it makes the coil twitch and vibrate with little power behind it to move the large sub cone. So the cone doesnt move while the coil is going crazy with tiny little movements and it normally over heats or just rattles its self apart.

[SSL]

19 minutes ago, EndlessOyster said:

because it makes the coil twitch and vibrate with little power behind it to move the large sub cone. So the cone doesnt move while the coil is going crazy with tiny little movements and it normally over heats or just rattles its self apart.

What an interesting notion.

 

So what you're saying is that music with little bass could cause my sub to overheat and fall to pieces? Because that is functionally identical to playing lots of bass at a low level.

[EndlessOyster]

Just now, SSL said:

What an interesting notion.

 

So what you're saying is that music with little bass could cause my sub to overheat and fall to pieces? Because that is functionally identical to playing lots of bass at a low level.

Its only a problem on large subs around 20 inches

[SSL]

2 minutes ago, EndlessOyster said:

Its only a problem on large subs around 20 inches

Well that's a good detail to mention.

[spwath]

41 minutes ago, SSL said:

Well that's a good detail to mention.

Yeah, most people don't have 20"+ subs...

[TheAudiophile]

On 3/11/2016 at 5:00 PM, EndlessOyster said:

When sending very little power to the subs you can risk not send enough power to move the coil, its like when driving a car you lift the clutch up but dont press the accelerator and you stall the car because it doesnt have enough power to move its self.
Its not normally not a problem on mids or tweeters because they are smaller then the subs and dont need as much power to make the speaker work.

 

On 3/11/2016 at 5:04 PM, EndlessOyster said:

because it makes the coil twitch and vibrate with little power behind it to move the large sub cone. So the cone doesnt move while the coil is going crazy with tiny little movements and it normally over heats or just rattles its self apart.

Okay nope nope nope total made up bullshit. Where did you even get this idea from?! I swear, the shit I run into on the internet sometimes...

Sending a small amount of power to any speaker driver, small or large (I don't care if it's 6 feet in diameter), doesn't do ANYTHING like you describe. Please do not spread this incorrect information any longer.

 

However, driving too small of an amplifier with too high of an input level (such that the output signal is clipping and distorted) WILL destroy speaker drivers, even if the driver is rated for more power than the amplifier can put out.

[Wolf_Lbh]

3 hours ago, TheAudiophile said:

 

Okay nope nope nope total made up bullshit. Where did you even get this idea from?! I swear, the shit I run into on the internet sometimes...

Sending a small amount of power to any speaker driver, small or large (I don't care if it's 6 feet in diameter), doesn't do ANYTHING like you describe. Please do not spread this incorrect information any longer.

 

However, driving too small of an amplifier with too high of an input level (such that the output signal is clipping and distorted) WILL destroy speaker drivers, even if the driver is rated for more power than the amplifier can put out.

Agreed.


Subs vibrate. As SSL said they handle lows but they do it at various intensities even at the same volume setting in the same piece of music so no matter what you do they will be vibrating from a little to a lot. Also I find it inconceivable that vibrating a little faster or slower would harm a device designed to do nothing but vibrate.

[Lutkeveld]

15 hours ago, TheAudiophile said:

 

However, driving too small of an amplifier with too high of an input level (such that the output signal is clipping and distorted) WILL destroy speaker drivers, even if the driver is rated for more power than the amplifier can put out.

LOL, what Oyster said was total BS, but this is also not true

 

Clipping will decrease crest factor (and thus increase RMS power) and shift power distribution towards the higher frequencies.

In theory your statement could be true, because a fully clipped sine wave (square wave) has 1.414x the voltage (2x the power).

If an amp is playing music (10+dB crest factor) at 100W max output, effective power is <10W. Effective ("RMS") power will increase when clipping, 

if the thermal capacity of the voice coil is smaller than the RMS output it'll indeed blow.

[TheAudiophile]

^This guy... ugh.

 

Thanks for effectively backing up what I said after claiming it wasn't true.

[BoredErica]

y r u guys fiting?

 

omg, be nice to each other