Car cabin sound levels

[Ungtiong]

I measured the sound level of my Altis with a sound meter and got the following readings..

 

idle ~45-50 db

cruising at 70km/hr ~ 60-65 db

revving to accelerate (to 5k RPM) ~ max at 70 db (on passenger chair) 76db at my feet.

 

is that normal? now looking at sound proofing..saw the e-rev website, show that they can reduce sound to 50++ db (from 80++ db..i assume this is for sports car). no need to spend $$ on quiet tyres that would not last long anyway....

 

incidental i use my Samsung S2 to measure the sound levels the reading is 5 db higher (idle and max) so not bad for a phone, can use for comparative measurements.

Edited July 3, 2012 by Ungtiong

[13177]

No need to test and dont bother to know the car cabin sound level, cause would only inside the car for a very short timing. Not as if i would sleep inside the car.

[Track]

I hv an old altis and find the noise level a bit loud (esp in long drive).

I think it is a combination of tire noise (bridgestone gr 90) and poor insulation.

 

Am also looking for an value for money solution too.

 

[Kangadrool]

I hv an old altis and find the noise level a bit loud (esp in long drive).

I think it is a combination of tire noise (bridgestone gr 90) and poor insulation.

 

Am also looking for an value for money solution too.

 

Ear plugs.

[Zafira18]

I measured the sound level of my Altis with a sound meter and got the following readings..

 

idle ~45-50 db

cruising at 70km/hr ~ 60-65 db

revving to accelerate (to 5k RPM) ~ max at 70 db (on passenger chair) 76db at my feet.

 

is that normal? now looking at sound proofing..saw the e-rev website, show that they can reduce sound to 50++ db (from 80++ db..i assume this is for sports car). no need to spend $$ on quiet tyres that would not last long anyway....

 

incidental i use my Samsung S2 to measure the sound levels the reading is 5 db higher (idle and max) so not bad for a phone, can use for comparative measurements.

 

yes, i got a replacement car which happen to be the latest Altis and is only 5K+ mileage. The sound isolation is the worst of all the car i ever own....anything above 80km/hr will need to up your radio volume ...cant imagine the passenger can survive long distance for >120km/hr...

[Kelpie]

I measured the sound level of my Altis with a sound meter and got the following readings..

 

idle ~45-50 db

cruising at 70km/hr ~ 60-65 db

revving to accelerate (to 5k RPM) ~ max at 70 db (on passenger chair) 76db at my feet.

 

is that normal? now looking at sound proofing..saw the e-rev website, show that they can reduce sound to 50++ db (from 80++ db..i assume this is for sports car). no need to spend $$ on quiet tyres that would not last long anyway....

 

incidental i use my Samsung S2 to measure the sound levels the reading is 5 db higher (idle and max) so not bad for a phone, can use for comparative measurements.

 

May I know where did you get meter from? interested to find out the noise level in my cars.

 

Thank you.

 

Regards,

[Ungtiong]

May I know where did you get meter from? interested to find out the noise level in my cars.

 

Thank you.

 

Regards,

 

Can download for smart phone..i use for my samsung s2. Search for sound meter. As for the real meter...its a few hundred dollars for a cheap model. The samsung s2 is quite good and easier to use. Only the readings was. Off by 5 db ( which is a lot) but good enough for comparitive measurements. Its consistently 5 db off. So so can accurately measure ur difference from idle to revvibg at high rpm. Also can foot off accelerator to see if noise from ur wheels is loud...just Discovered my car stereo is 72-75 db with my car topping 90 db at redline acceleration and 80 db cruising at higherbspeeds.....no wonder my stereo is crap....my car noise is too loud....lastest measurements using my s2

[5936]

What do we want to do with the readings.

 

More things will come after measurement.

 

So I rather not know the exact figure.

[Skyiet27]

Interesting

 

 

Any bro here driving Lexus

 

Dun mind can download this app n try testing the lvl

 

Since Lexus is known for good insulation

 

 

Btw jus to share

 

Months back I got a used car

 

Very noisy compared to ex ride

 

I tot it's tyre up lorry

 

Till this week I went ws

 

Tried turning ea wheel while car is jacked up

 

One wheel got a v rough sound

 

Wheel bearing up lorry

 

After replacement

 

Car is as quite as a new car, even tyre is quite

 

Any bro car > 4-5 yrs

 

Can DIY jack up car

 

Try spin ea wheel

 

Dun be surprise with good bearings

 

Our car is v quiet

[Bigbadguy]

Eh how to check sound lv? i wanna check also leh. lol. =D

[Topspin]

I measured the sound level of my Altis with a sound meter and got the following readings..

 

idle ~45-50 db

cruising at 70km/hr ~ 60-65 db

revving to accelerate (to 5k RPM) ~ max at 70 db (on passenger chair) 76db at my feet.

 

is that normal? now looking at sound proofing..saw the e-rev website, show that they can reduce sound to 50++ db (from 80++ db..i assume this is for sports car). no need to spend $$ on quiet tyres that would not last long anyway....

 

incidental i use my Samsung S2 to measure the sound levels the reading is 5 db higher (idle and max) so not bad for a phone, can use for comparative measurements.

 

I drive a 2011 Lexus (a SUV and not the quieter saloons) and take cabin noise sound pressure measurement quite seriously, in fact I try to measure it as scientifically as possible. Therefore, based on your readings, I say your Altis is very quiet, granted there are differences in sensitivity between your instrument and mine and the manner we measure it in our respective cars.

 

My own latest measurements with aftermarket sound proofing:

 

All measure using Radioshack digital sound meter placed on the dash. Car stereo switched off.

 

Idling at home basement carpark - about 51dBA or less (meter cannot read below 50 dBA)

Idling at traffic light in busy intersection - about 55 dBA

PIE near tuas, after KJE exit, slightly more smooth surface 0.5km stretch 90km/hr - about 63 dBA

PIE near tuas, before KJE exit, very poor surface conditions with exposed gravel 80km/hr about 67~68 dBA

Orchard Rd

Edited July 4, 2012 by Topspin

[FocusWagon]

bro, that is a good study!

 

i take a gs300 regularly. i will go measure and share

[JaydenSTI]

I drive a 2011 Lexus (a SUV and not the quieter saloons) and take cabin noise sound pressure measurement quite seriously, in fact I try to measure it as scientifically as possible. Therefore, based on your readings, I say your Altis is very quiet, granted there are differences in sensitivity between your instrument and mine and the manner we measure it in our respective cars.

 

My own latest measurements with aftermarket sound proofing:

 

All measure using Radioshack digital sound meter placed on the dash. Car stereo switched off.

 

Idling at home basement carpark - about 51dBA or less (meter cannot read below 50 dBA)

Idling at traffic light in busy intersection - about 55 dBA

PIE near tuas, after KJE exit, slightly more smooth surface 0.5km stretch 90km/hr - about 63 dBA

PIE near tuas, before KJE exit, very poor surface conditions with exposed gravel 80km/hr about 67~68 dBA

Orchard Rd

[Surf2004]

For those with iPhone, download UE SPL.

 

It's a sound level meter and it's free.

 

But not sure if it's accurate.

[5936]

I also downloaded the sound meter app.

 

Engine off - 5-6 dB

 

Idling - 11-13 dB

 

Highway 90kmh - 52-55dB(edited: PIE Jurong )

Edited July 6, 2012 by 5936

[Surf2004]

I also downloaded the sound meter app.

 

Engine off - 5-6 dB

 

Idling - 11-13 dB

 

Highway 90kmh - 52-55dB(edited: PIE Jurong )

 

Which part of pie ?

[5936]

Jurong west side

[Ungtiong]

I also downloaded the sound meter app.

 

Engine off - 5-6 dB

 

Idling - 11-13 dB

 

Highway 90kmh - 52-55dB(edited: PIE Jurong )

5db something wrong.....as in the reading most likely out.