Sound Generator High Decibels

[W]

Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?

I need this for testing sound proofing.

[Phil Allison]

"W"

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?

** Nope.

Post by W
I need this for testing sound proofing.

** Not really.

The attenuation produced by sound proofing does not depend on sound level.

All you need is a source of sound ( ie amplifier and speaker) and an SPL
meter - nothing fancy required.

Using say octave wide pink noise, you simply see what the SPL meter reads in
one space compared to the other.

The difference is then the attenuation in dB.


.... Phil

[Martin Harrington]

On 6/11/11 11:43 AM, in article

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

?There's a cool app for iphone called Sound Check.
It does all that

Cheers

Martin Harrington

[initial and]

Hello Martin,
apropos iphone apps for acoustics, you may want to look at RevMeterPro
- it gives RT60 (sort of :-) ) I used it on the recce for your recent
photo shoot with us. Did the recce for the studios thinking they would
sound crap - wasn't disappointed :-)
Seems strange to see Phil Alison's name come up on RAMPS - he wanders
far a field.
cheers
Grant R

On Sun, 06 Nov 2011 16:22:44 +1100, Martin Harrington

Post by Martin Harrington
On 6/11/11 11:43 AM, in article

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

?There's a cool app for iphone called Sound Check.
It does all that
Cheers
Martin Harrington

[Phil Allison]

Post by initial and
Seems strange to see Phil Alison's name come up on RAMPS - he wanders

** The marvels of crossposting - eh .

Post by initial and

Post by W
I need this for testing sound proofing.

** The OP *says* he is testing sound proofing.

I hope he and you know the difference between that and " acoustic treatment
".

Different as chalk and cheese.


... Phil

[Martin Harrington]

Hi Grant,

You were right, the "studio" space was crap, but mainly from aircraft and
trucks, but in the scheme of things, it wasn't too bad.
The side room, that we used for I/V's Was subject to a lot of noise but not
to roomy as it turned out.

Re the analyser, I have RTA by Studio Six Digital and that's not too shabby.

Cheers
Martin

Post by initial and
Hello Martin,
apropos iphone apps for acoustics, you may want to look at RevMeterPro
- it gives RT60 (sort of :-) ) I used it on the recce for your recent
photo shoot with us. Did the recce for the studios thinking they would
sound crap - wasn't disappointed :-)
Seems strange to see Phil Alison's name come up on RAMPS - he wanders
far a field.
cheers
Grant R
On Sun, 06 Nov 2011 16:22:44 +1100, Martin Harrington

Post by Martin Harrington
On 6/11/11 11:43 AM, in article

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

?There's a cool app for iphone called Sound Check.
It does all that
Cheers
Martin Harrington

[initial and]

So are you using the audio tools from those guys? I'm using the Faber
one (signal scope) - it's pretty good for our type of thing -
certainly tells me if there is a crt nearby!!!! - which of course at
this advanced age I can't hear :-)
As you said on another message top posting/bottom posting is sooo last
decade ;-)
cheers and hope all is well
Grant
PS poor old Phil AA is a bit out of his depth ;-)

On Mon, 07 Nov 2011 17:17:49 +1100, Martin Harrington

Post by Martin Harrington
Hi Grant,
You were right, the "studio" space was crap, but mainly from aircraft and
trucks, but in the scheme of things, it wasn't too bad.
The side room, that we used for I/V's Was subject to a lot of noise but not
to roomy as it turned out.
Re the analyser, I have RTA by Studio Six Digital and that's not too shabby.
Cheers
Martin

Post by initial and
Hello Martin,
apropos iphone apps for acoustics, you may want to look at RevMeterPro
- it gives RT60 (sort of :-) ) I used it on the recce for your recent
photo shoot with us. Did the recce for the studios thinking they would
sound crap - wasn't disappointed :-)
Seems strange to see Phil Alison's name come up on RAMPS - he wanders
far a field.
cheers
Grant R
On Sun, 06 Nov 2011 16:22:44 +1100, Martin Harrington

Post by Martin Harrington
On 6/11/11 11:43 AM, in article

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

?There's a cool app for iphone called Sound Check.
It does all that
Cheers
Martin Harrington

[Denny Strauser]

Post by initial and
So are you using the audio tools from those guys? I'm using the Faber
one (signal scope) - it's pretty good for our type of thing -
certainly tells me if there is a crt nearby!!!! - which of course at
this advanced age I can't hear :-)
As you said on another message top posting/bottom posting is sooo last
decade ;-)
cheers and hope all is well
Grant
PS poor old Phil AA is a bit out of his depth ;-)

You are so fucking - not last decade .... just completely clueless. Take
your CTR measurement device & stick it in your headphones. CAN YOU HEAR
ME NOW? I thought not ...

[initial and]

On Tue, 08 Nov 2011 05:07:22 -0500, Denny Strauser

Post by Denny Strauser

Post by initial and
So are you using the audio tools from those guys? I'm using the Faber
one (signal scope) - it's pretty good for our type of thing -
certainly tells me if there is a crt nearby!!!! - which of course at
this advanced age I can't hear :-)
As you said on another message top posting/bottom posting is sooo last
decade ;-)
cheers and hope all is well
Grant
PS poor old Phil AA is a bit out of his depth ;-)

You are so fucking - not last decade .... just completely clueless. Take
your CTR measurement device & stick it in your headphones. CAN YOU HEAR
ME NOW? I thought not ...

Clueless perhaps but not C2H5OH problematic, you silly little boy.
Perhaps you missed the wink and the nudge/smiley....but there isn't
one now.

[Peter Larsen]

Post by initial and
As you said on another message top posting/bottom posting is sooo last
decade ;-)

Yes you are.

Peter Larsen

[Arny Krueger]

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

The device you are looking for is called a modern audio system.

[Denny Strauser]

Post by Arny Krueger

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

The device you are looking for is called a modern audio system.

A sound system + a test CD + measuring device.

[Ron]

Post by Denny Strauser

Post by Arny Krueger

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

The device you are looking for is called a modern audio system.

A sound system + a test CD + measuring device.

A small child would fit the bill nicely ;)

Ron

[W]

Do you know of a test CD that will take the sound across a wide range of
frequencies, maybe calling those out by voice as each frequency is reached?

And if I understand your suggestion, the test CD would basically be just a
single frequency scan tone, and all of the amplitude would be controlled at
the sound system manually?
--
W

Post by Denny Strauser

Post by Arny Krueger

Post by W
Does anyone make a device that would cycle from low decibels up to very high
decibels, traveling a range of frequencies at each decibel level?
I need this for testing sound proofing.

The device you are looking for is called a modern audio system.

A sound system + a test CD + measuring device.

[Denny Strauser]

Post by W
Do you know of a test CD that will take the sound across a wide range of
frequencies, maybe calling those out by voice as each frequency is reached?
And if I understand your suggestion, the test CD would basically be just a
single frequency scan tone, and all of the amplitude would be controlled at
the sound system manually?

Do an internet search for Audio Calibration CD's. I have a couple, but
I'm not going to share them. Some test CD's will do a full sweep from
below hearing range to above hearing range. But measurements will only
be as accurate as the playback system.

All amplitude (and frequency) measurement is necessarily directly
dependent on the sound system. And measurement is dependent on the
measuring system.

You ask so many questions that make me wonder if you are qualified to
accomplish this. What EXACTLY is your goal? Maybe you need to hire a
professional ... maybe you don't.

- Denny

[Denny Strauser]

Post by Denny Strauser

Post by W
Do you know of a test CD that will take the sound across a wide range of
frequencies, maybe calling those out by voice as each frequency is reached?
And if I understand your suggestion, the test CD would basically be just a
single frequency scan tone, and all of the amplitude would be
controlled at
the sound system manually?

Do an internet search for Audio Calibration CD's. I have a couple, but
I'm not going to share them. Some test CD's will do a full sweep from
below hearing range to above hearing range. But measurements will only
be as accurate as the playback system.
All amplitude (and frequency) measurement is necessarily directly
dependent on the sound system. And measurement is dependent on the
measuring system.
You ask so many questions that make me wonder if you are qualified to
accomplish this. What EXACTLY is your goal? Maybe you need to hire a
professional ... maybe you don't.

And, BTW, usual protocol for newsgroups is to respond BELOW previous
post ...

[Martin Harrington]

Post by Denny Strauser

Post by Denny Strauser

Post by W
Do you know of a test CD that will take the sound across a wide range of
frequencies, maybe calling those out by voice as each frequency is reached?
And if I understand your suggestion, the test CD would basically be just a
single frequency scan tone, and all of the amplitude would be controlled at
the sound system manually?

Do an internet search for Audio Calibration CD's. I have a couple, but
I'm not going to share them. Some test CD's will do a full sweep from
below hearing range to above hearing range. But measurements will only
be as accurate as the playback system.
All amplitude (and frequency) measurement is necessarily directly
dependent on the sound system. And measurement is dependent on the
measuring system.
You ask so many questions that make me wonder if you are qualified to
accomplish this. What EXACTLY is your goal? Maybe you need to hire a
professional ... maybe you don't.

And, BTW, usual protocol for newsgroups is to respond BELOW previous
post ...

Crap ...

[Richard Webb]

Post by Denny Strauser
Do an internet search for Audio Calibration CD's. I have a couple,
but I'm not going to share them. Some test CD's will do a full
sweep from below hearing range to above hearing range. But
measurements will only be as accurate as the playback system.
All amplitude (and frequency) measurement is necessarily directly

DS> dependent on the sound system. And measurement is dependent on the

Post by Denny Strauser
measuring system.

Would agree, there are some good ones out there. Check the
rec.audio.pro archives for recommendations.

Post by Denny Strauser
You ask so many questions that make me wonder if you are qualified
to accomplish this. What EXACTLY is your goal? Maybe you need to
hire a professional ... maybe you don't.

This is what I thought when I first saw his query. HIs
question was formulated in such a way that it's obvious he's not a professional, and not really clued up. I was
wondering much the same. Tell us what it is you're trying
to do and we can help guide you, whether it be to find a
professional or to do tests that are maingful and relevant
to what you're trying to find out.

Regards,
Richard
--
| Remove .my.foot for email
| via Waldo's Place USA Fidonet<->Internet Gateway Site
| Standard disclaimer: The views of this user are strictly his own.

[Steve Hawkins]

Post by W
Does anyone make a device that would cycle from low decibels up to
very high decibels, traveling a range of frequencies at each decibel
level?
I need this for testing sound proofing.

Find a place that rents Test and Meaurement equipment. There are signal
generators that will sweep frequency and amplitude. I doubt you'll find
one with the amplitude you need, but you can run it through an amp.

[Denny Strauser]

Post by Steve Hawkins

Post by W
Does anyone make a device that would cycle from low decibels up to
very high decibels, traveling a range of frequencies at each decibel
level?
I need this for testing sound proofing.

Find a place that rents Test and Meaurement equipment. There are signal
generators that will sweep frequency and amplitude. I doubt you'll find
one with the amplitude you need, but you can run it through an amp.

For reliable sound measurements it would have to be a good sound system.
And any testing equipment that has amplitude calibration is totally
dependent on the playback system. It would only be as accurately
calibrated as the playback system is.

I would recommend quality test CD or pink noise source, a high quality
sound system & a quality testing system like Smaart software with two
good mics & a quality interface like USBPro.

Place one mic inside the soundproofed enclosure & one outside. Then
compare the difference to make a usable comparison.

- Denny

[Gareth Magennis]

Post by Denny Strauser

Post by Steve Hawkins

Post by W
Does anyone make a device that would cycle from low decibels up to
very high decibels, traveling a range of frequencies at each decibel
level?
I need this for testing sound proofing.

Find a place that rents Test and Meaurement equipment. There are signal
generators that will sweep frequency and amplitude. I doubt you'll find
one with the amplitude you need, but you can run it through an amp.

For reliable sound measurements it would have to be a good sound system.
And any testing equipment that has amplitude calibration is totally
dependent on the playback system. It would only be as accurately
calibrated as the playback system is.
I would recommend quality test CD or pink noise source, a high quality
sound system & a quality testing system like Smaart software with two good
mics & a quality interface like USBPro.
Place one mic inside the soundproofed enclosure & one outside. Then
compare the difference to make a usable comparison.
- Denny

Where exactly do you place the mic that's inside the "soundproofed" room?

Sounds kind of like you'd get some random spot reading.


Gareth.

[BNB Sound]

Mackie powered pole speakers blasting Nickelback.

[Peter Larsen]

Post by W
Does anyone make a device that would cycle from low decibels up to
very high decibels, traveling a range of frequencies at each decibel
level?
I need this for testing sound proofing.

Certified noise sources exist. Probably costly.

Kind regards

Peter Larsen