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Tachometer For Iphone Empty Tachometer For Iphone

Post  Iceberg on Mon Jul 01, 2019 11:03 pm

Does anyone have experience using an acoustic tachometer using an iPhone? Balogh kindly told me a good one for Android. However my Android phone is on the fritz. But my iPhone is ok. What acoustic tachometer for iPhone can also work like RPM Guage for Android?

Thanks
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Post  Marleysky on Tue Jul 02, 2019 12:38 pm

Ice, here are a couple from a google search, one free download and one $9 from the App Store:  
https://www.google.com/search?q=acoustic+tachometer+iphone&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari


Oh, no, I have not used either of them. So I cannot recommendation either of em.
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Post  balogh on Tue Jul 02, 2019 3:02 pm

The Acoustic RPM is the one I use on Android phone and is pretty accurate.
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Post  RknRusty on Wed Jul 03, 2019 11:48 pm

Andras, does your Acoustic RPM app have an icon that looks like this:

Tachometer For Iphone RPM%20Icon

I have that one, but have yet to test it on anything dependable.

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Post  balogh on Thu Jul 04, 2019 12:36 am

Yes Rusty, see in the bottom line..:

Tachometer For Iphone Screen17
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Post  balogh on Thu Jul 04, 2019 12:43 am

The good thing about it is that in split screen mode on your phone you can watch a vid on your plane or engine on the e.g. bottom half and measure the rpm on the top half:Tachometer For Iphone Screen18
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Post  944_Jim on Thu Jul 04, 2019 7:48 am

Balogh, how did you tape the phone to the wing for the flight? That's cool! Eyebrows
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Post  balogh on Thu Jul 04, 2019 7:59 am

Jim,

it was a small key-chain camera fixed to the wing with a Velcro tape, with which I shot the vid then uploaded it on youtube.


(This is a similar in-flight vid I posted on youtube ...)
Then, opening and playing the youtube vid on my phone in split screen mode allows me to run the RPM Gauge app in parallel, and the sound of the vid played on my phone is used by the app on my phone to calculate the engine rpm...and the split screen mode allows the simultaneous viewing of the vid and the RPM Gauge app both. Then it is only a matter of screenshot that finally made that picture that I posted here.
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Post  944_Jim on Thu Jul 04, 2019 9:49 am

Cool! I thought that is how you did it. I just could not wrap my head around the app "listening" through the phone while the video played on the phone. Did you have to do anything special to port the sound in software to the Tach app? Or was it simply "make sound over speaker," and listen to sound via the microphone?
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Post  balogh on Thu Jul 04, 2019 10:12 am

It simply senses the sound the phone emits while playing the video...nothing special..
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Post  Iceberg on Fri Jul 05, 2019 2:54 am

Balogh
That is a really cool picture of the .051 cruising along. Very nice. Decent RPM as well.

Thanks
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Post  aspeed on Fri Jul 05, 2019 8:07 am

It really revs up going downhill.
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Post  balogh on Fri Jul 05, 2019 8:38 am

Yes it downloads over 24k in dives..
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