Android App for measuring db in the RLX
#1
Three Wheelin'
Thread Starter
Android App for measuring db in the RLX
Good Morning! I downloaded a db measuring app on my phone this morning and tested it to see what I showed. Here is what I saw:
- 11db - @ 0 mph, Engine off
- 24db - @ 0 mph, EV mode engaged, no ICE engine, no AC
- 33db - @ 0 mph, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 41db - @ 0 mph, ICE engine engaged, AC operating with two bars on the fan speed
- 44db - @ 40 mph on asphalt pavement, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 52db - @ 40 mph on asphalt pavement, ICE engine engaged, AC operating with two bars on the fan speed
- 58db - @ 60 mph on asphalt pavement, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 61db - @ 60 mph on asphalt pavement, ICE engine engaged, AC operating with two bars on the fan speed
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#2
Three Wheelin'
I'd be really curious to know what numbers the app gets in your MDX Sport Hybrid for comparison (or even other brands luxury sedans you may be getting a ride in).
Thanks for all of the great information you provide.
Thanks for all of the great information you provide.
#3
Senior Moderator
Does the RLX have Active Noise Control?
#4
Three Wheelin'
^^I'm pretty sure the RLX does have active noise cancellation, but I don't know where the mics are. In my old RL, I remember holding my finger over the mic in the overhead console and being able to hear the "growl" of the exhaust very prominently.
#5
Three Wheelin'
Thread Starter
I did not think about the noise cancelling device, but it is for sure very quiet. I will do the same with the MDX Sport Hybrid and report back. I did the same thing with a professional noise measuring device soon after I purchased the Blackbird, and I don't know how these app measurements compare, but I am just reporting what I saw off of my phone. Just so you know I placed the phone screen up in the center console where the cup holders for the test.
#6
I'm betting MDX is quieter
#7
Three Wheelin'
Thread Starter
Good Morning! I downloaded a db measuring app on my phone this morning and tested it to see what I showed. Here is what I saw:
- 11db - @ 0 mph, Engine off
- 24db - @ 0 mph, EV mode engaged, no ICE engine, no AC
- 33db - @ 0 mph, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 41db - @ 0 mph, ICE engine engaged, AC operating with two bars on the fan speed
- 44db - @ 40 mph on asphalt pavement, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 52db - @ 40 mph on asphalt pavement, ICE engine engaged, AC operating with two bars on the fan speed
- 58db - @ 60 mph on asphalt pavement, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 61db - @ 60 mph on asphalt pavement, ICE engine engaged, AC operating with two bars on the fan speed
- 13db - @ 0 mph, Engine off
- 29db - @ 0 mph, EV mode engaged, no ICE engine, no AC
- 40db - @ 0 mph, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 55db - @ 0 mph, ICE engine engaged, AC operating with two bars on the fan speed
- 58db - @ 40 mph on asphalt pavement, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed
- 64db - @ 40 mph on asphalt pavement, ICE engine engaged, AC operating with two bars on the fan speed
- 66db - @ 57 mph on asphalt pavement, EV mode engaged, no ICE engine, AC operating with two bars on the fan speed (coasting downhill)
- 63db - @ 57 mph on asphalt pavement, EV mode engaged, no ICE engine, AC off (coasting downhill)
- 66db - @ 57 mph on asphalt pavement, ICE engine engaged, AC operating with two bars on the fan speed
- 65db - @ 57 mph on asphalt pavement, ICE engine engaged, AC off
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#8
AC Fan is definitely louder in MDX - more powerful I suspect.
I'm surprised at the AC off compared to RLX. My MDX seems much quieter than my PAWS RLX
I'm surprised at the AC off compared to RLX. My MDX seems much quieter than my PAWS RLX
#10
Three Wheelin'
Thread Starter
I can't explain for the differences. I thought the MDX was not as quiet as the RLX, but the measured differences surprised me. To my ear the lowest setting for the fan speed in the MDX is louder than the 2nd step up fan speed in the RLX. I wonder if the shapes of the tubing behind the dash are the cause? The interesting point of interest was how little change there was in measured noise between 40 and 57 mph in the MDX. By no means would I characterize it as "noisy" as the frequency is not objectionable. However the RLX Sport Hybrid does sound particularly quiet at the same speeds.
One funny note, when I was doing my tests I was coming back from the store and the sound of the plastic bags moving around was making enough of a racket that it inflated the numbers, so I stowed them in the back and then got the numbers I reported. It was about a 10db difference. I guess the microphone on the phone is really sensitive.
One funny note, when I was doing my tests I was coming back from the store and the sound of the plastic bags moving around was making enough of a racket that it inflated the numbers, so I stowed them in the back and then got the numbers I reported. It was about a 10db difference. I guess the microphone on the phone is really sensitive.
#11
Burning Brakes
One funny note, when I was doing my tests I was coming back from the store and the sound of the plastic bags moving around was making enough of a racket that it inflated the numbers, so I stowed them in the back and then got the numbers I reported. It was about a 10db difference. I guess the microphone on the phone is really sensitive.
#12
plastic bags!! where is your environmental sense of duty
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RLX-Sport Hybrid (09-29-2017)
#13
Three Wheelin'
Thread Starter
Don't I get an environmental credit for using two hybrids? Awww Geez. If it makes up for anything, I do recycle the bags along with all of my plastic containers and paper/cardboard.
#14
Three Wheelin'
Thread Starter
What is interesting is how much outside noise of other cars or trucks passing by made the db reading jump up. What I was reporting was what the settled numbers without any outside extra noises, OR noise from plastic bags from the grocery store to foul up the readings.
#15
Every hybrid should come with at least one multiple use grocery bag. Remember I'm from CA. We don't even allow plastic in most places and you have to pay .25 for a paper bag.
#16
Three Wheelin'
Thread Starter
Sir thank you sir!
#17
Burning Brakes
Did you try turning off the rear AC completely? I know the whole HVAC system in the MDX gets quieter, when you switch the rear AC off........
Just a suggestion.....
Just a suggestion.....
#18
Three Wheelin'
Thread Starter