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loud soundwaves impact on image quality...
Something me and my friend were talking about a week ago.

I was driving and he was taking pictures, and when I saw that he was taking a picture of something interesting I turned down my stereo (i have a 150 2 channel amp, so my two front speakers were using up close to 60 watts at the time).

Lets just say it was really loud, LOL..

He asked me why I turned the music down and I told him that such a powerful sonic resonance could have an impact on the picture due to lens and or sensor vibration..

He said it's probably neglegable,.

I'm not an engineer or a physics guy,.

So you guys tell me, am I just paranoid or does my theory have some merit.

(lets assume were talking about around 95 decibles..

Comments (22)

I doubt very much it's an issue. Plenty of pictures have been taken at 110db rock concerts and it's never come up...

Comment #1

Vibrations from the moving car were a MUCH bigger problem than the sound..

By the way, you WILL regret that loud volumn music experience in the years to come. Trust me on this..

The greatest of mankind's criminals are those who delude themselves into thinking they have done 'the right thing.'- Rayna Butler..

Comment #2

Gooshin wrote:.

So you guys tell me, am I just paranoid or does my theory have somemerit.

NO! What? I can't hear you!.

If you have big subwoofers, these can shake the car and cause the welds to fail..

Charlie DavisNikon 5700 & Sony R1HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/..

Comment #3

I dont have subwoofers.

I just have really high quality mids and high's, not a big fan of the boom..

And the amount of physical stress my car sees on the race track on weekends is probably alot more than what a subwoofer will cause..

Turning at 1.2 G's for a couple of hours will flex the chassis pretty badly. =].

Chuxter wrote:.

Gooshin wrote:.

So you guys tell me, am I just paranoid or does my theory have somemerit.

NO! What? I can't hear you!.

If you have big subwoofers, these can shake the car and cause thewelds to fail..

Charlie DavisNikon 5700 & Sony R1HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/..

Comment #4

And...a more to the point answer. I don't know about digital, but years ago I was videotaping (analog tape) a gunshot being fired nearby. The sound overwhelmed the audio portion of course, but interestingly it also left a noticeable brief "glitch" on the video, (probably one or two frames) at the instant the sound hit. Who knows?..

Comment #5

Gooshin wrote:.

And the amount of physical stress my car sees on the race track onweekends is probably alot more than what a subwoofer will cause..

I think he was refering to your ears, brainiac...

Comment #6

Sigezar wrote:.

I think he was refering to your ears, brainiac..

Dear lord the hostility!.

"If you have big subwoofers, these can shake the car and cause the welds to fail.".

Right.. so... my ears would be the car.. or the welds?..

Comment #7

Sorry, 't was supposed to be a joke... But really, nothing comparable (in term of effects) between 1.2G turns and vibrations from a subwoofer for your car's integrity. That's like comparing smoking and eating too much in terms of effects on your health..

Gooshin wrote:.

Sigezar wrote:.

I think he was refering to your ears, brainiac..

Dear lord the hostility!.

"If you have big subwoofers, these can shake the car and cause thewelds to fail.".

Right.. so... my ears would be the car.. or the welds?..

Comment #8

RUcrAZ wrote:.

And...a more to the point answer. I don't know about digital, butyears ago I was videotaping (analog tape) a gunshot being firednearby. The sound overwhelmed the audio portion of course, butinterestingly it also left a noticeable brief "glitch" on the video,(probably one or two frames) at the instant the sound hit. Who knows?.

The impact of loud sounds on analog recording is well known. Back in the cassette days, high-end models had sound-resistant doors and isolating feet...

Comment #9

Greg Nut wrote:.

The impact of loud sounds on analog recording is well known. Back inthe cassette days, high-end models had sound-resistant doors andisolating feet..

Thank you, although I obviously ran into this, I was not aware it was a widespread effect. I take it it does "not" happen when digital video taping?..

Comment #10

I think that if the frequency of the sound was near the resonant frequency of the sensor, the sensor would move. Whether it would show up on the pic....Off topic, what kind of car pulls 1.2 gs????ave..

Comment #11

With R comps.

Current tire technologies can push almost any street car into above 1G for cornering..

Since how much a car can hold in a corner is primarily a factor of track width and weight, I know for a fact that a subaru STI (~3000 lb) peaked at 1.57 g on Hoosier R6's (recorded with gps software).

I know that my 2700lb Golf on Toyo RA1's can push 1.2, if not more...

Comment #12

Wow, my '02 WRX w/coilovers, etc. and T1-Rs only gets to about .95 steady state!..

Comment #13

JurassicWRX wrote:.

Wow, my '02 WRX w/coilovers, etc. and T1-Rs only gets to about .95steady state!.

I think the difference may be the terminology? Gooshin said "peaked out", which doesn't imply "steady state". Or perhaps all that loud music has done a job on his head? .

I currently have RA1s on my 914 and it will out corner almost anything. I would not claim 1.2G as my friends would laugh and I don't like rejection..

Charlie DavisNikon 5700 & Sony R1HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/..

Comment #14

Well first of all a toyo T1R is a mediocre street tire, try again with heat cycled hoosiers and a bucket full of confidence and you'll be amazed..

As far as a porsche 914, at it's weight an on RA1's you should be pulling 1g without even trying. 1.2 is easily achievable.

Remember, 3 things matter when cornering, weight, center of gravity, and track width..

If you have a light car that sits low and the tires are far apart, lateral weight transfer is at it's minimum, that means your tire holds on more before losing grip..

Now, whether YOU can push yourSELF to corner at such speeds is a totaly different matter..

Ive SEEN (and can even dig up video footage) of a Honda Insight passing a Corvette! =]..

Comment #15

RUcrAZ wrote:.

Greg Nut wrote:.

The impact of loud sounds on analog recording is well known. Back inthe cassette days, high-end models had sound-resistant doors andisolating feet..

Thank you, although I obviously ran into this, I was not aware it wasa widespread effect. I take it it does "not" happen when digitalvideo taping?.

Not that I'm aware of. Digital is different besides. There's no way it would distort the sound. Theoretically, it could cause a loss of signal or dropouts, but there is error correction...

Comment #16

GodSpeaks wrote:.

By the way, you WILL regret that loud volumn music experience in theyears to come. Trust me on this..

I'll second that! I have a case of Tinnitus to show for my years of listening to loud music. And that was before the days of ubiquitous absurdly high-powered car stereos..

But try convincing future consequences to a 20-something and, well, we all know how that plays..

The greatest of mankind's criminals are those who delude themselvesinto thinking they have done 'the right thing.'- Rayna Butler.

Dpreview & pbase supporterhttp://www.pbase.com/digirob..

Comment #17

Sheesh, haven't you heard of photo quality degradation due to "excessive noise"?? ..

Comment #18

Gooshin wrote:.

Well first of all a toyo T1R is a mediocre street tire, try againwith heat cycled hoosiers and a bucket full of confidence and you'llbe amazed..

I don't know what a Toyo T1R is. I don't use the RA1's on the street..

As far as a porsche 914, at it's weight an on RA1's you should bepulling 1g without even trying. 1.2 is easily achievable.

That depends on the state of modification of the 914..

Remember, 3 things matter when cornering, weight, center of gravity,and track width..

You are preaching to the choir...but there are other factors that are important...things such as spring rate, camber settings, non-compliant bushings, etc. But I'm sure you know that..

If you have a light car that sits low and the tires are far apart,lateral weight transfer is at it's minimum, that means your tire holdson more before losing grip..

Gosh....

Now, whether YOU can push yourSELF to corner at such speeds is atotaly different matter..

Can you? Oops, I forgot you pull 1.2G routinely..

Ive SEEN (and can even dig up video footage) of a Honda Insightpassing a Corvette! =].

I have a Prius and passed a Lamborgini once, but I didn't get any video footage. .

Charlie DavisNikon 5700 & Sony R1HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/..

Comment #19

Sure you have... excessive noise at ISO 3200 or 1600? ..

Comment #20

It will have a slight impact..

But less than most other factors Anders.

'It is nice to be important but it is more important to be nice'..

Comment #21

My sentence was in reference to JurasicWRX's comment, he has a T1R, it is currently toyos "high performance summer tire"... a modification of an older T1S they had a couple of years ago..

I never said to run RA1's on the street.

I never even said I drive like that on the street.

A comment was made that a subwoofer, which I dont even have, would rattle my car to bits, and I just commented that the things I do /on a race track/ are far more devastating to my cars longevity than any subwoofer..

As far as preaching to the choir, I am not, most people think that just by dropping their car on stiff springs and putting on 18" they have a super car all of a sudden..

I dont really understand what it is that you are trying to prove or point out. I have been doing organized grassroots motorsports for 3 years now, and during this last season was heavily involved in the administration of it, I have even organized a full event..

If you think i'm talking out of my a ss you are highly mistaken,.

If you think that your 914 cant corner that fast, well, thats your opinion, after all it's your car, but simple physics dictate otherwise...

Comment #22

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This question was taken from a support group/message board and re-posted here so others can learn from it.

 

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