How to make it beep-beep

[arminf]

Hi.
I've used 4-5 GPS apps and I couldn't find option to set a sound (in my case beeping sound) when I gain vertical speed. I wanna use my tilt like a paragliding variometer cause i can't look at the phone and enjoy the view :).
So is there app that have that option or could you make one plz.
You can search on youtube to see how variometer works.

A paragliding variometer can have up to three ways of letting you know your vertical speed. Audio sound, digital readout or analog clockface. Some varios are quite basic, like the simple audio-only vario with nothing but an Off/On switch.

Let's have a quick look at each type in turn.

The audio sound indication. If you are going up faster than a pre-set value, you hear a beep-beep tone which increases in pitch the stronger the lift is. Different models have different sounds. Some of them have a sink-alarm as well, warning you with another sound that you are sinking faster than some pre-set value.

[Flying Kiwi]

I've used 4-5 GPS apps and I couldn't find option to set a sound (in my case beeping sound) when I gain vertical speed. I wanna use my tilt like a paragliding variometerFirstly welcome to XDA-DEV arminf! I know exactly what you're after but the HTC TyTN II (and consequently also the Tilt) isn't equipped with enough hardware to be able to do that. There's no Barometric capsule to sense changes in air pressure and no accelerometer so it's no can do using just the phone. Interestingly the Tomtom Navigator version that came with my TyTN II has a setting for which units pressure is to be displayed in (but it has no way of getting that info). Maybe with future products if you let HTC know you'd like this capability included, they may listen (oh, and don't forget to ask for complete driver support while you're at it :rolleyes:). The Touch Pro has an accelerometer but I don't know if it's capable of sensing acceleration in the right plane and whether it can be harnessed using software for this specific purpose.

[dancj]

Surely it should be doable. GPS gives your 3d position, so all software has to do is give compare the positions and times of two subsequent positions to work out the vertical speed.

It should be quite simple for someone who actually has a clue how to program for Windows Mobile

[arminf]

Firstly welcome to XDA-DEV arminf! I know exactly what you're after but the HTC TyTN II (and consequently also the Tilt) isn't equipped with enough hardware to be able to do that. There's no Barometric capsule to sense changes in air pressure and no accelerometer so it's no can do using just the phone. Interestingly the Tomtom Navigator version that came with my TyTN II has a setting for which units pressure is to be displayed in (but it has no way of getting that info). Maybe with future products if you let HTC know you'd like this capability included, they may listen (oh, and don't forget to ask for complete driver support while you're at it :rolleyes:). The Touch Pro has an accelerometer but I don't know if it's capable of sensing acceleration in the right plane and whether it can be harnessed using software for this specific purpose.

Thanks
Wow you are really into variometers :), and i know that Tilt doesn't have Barometric capsule, but I was trying to improvise with GPS. So i just need that beeping sound on some GPS app when I'm going up :)

[alt236]

Surely it should be doable. GPS gives your 3d position, so all software has to do is give compare the positions and times of two subsequent positions to work out the vertical speed.

It should be quite simple for someone who actually has a clue how to program for Windows Mobile

Keep in ming though that the GPS inside the TILT uses a perfect sphere model for the planet (AFAIR). So it is possible that you will get a number of false posities/negatives on an extremely uneven terrain...

But yes, in principle it should work.

[Flying Kiwi]

Whats needed for the intended purpose is something that reacts instantaneously (or very close to it) and with imense accuracy to sense when it's rising or decending and at what rate. If the device is to slow or not accurate enough (and I believe relying solely on the TyTN IIs GPS would present these issues) then you'd end up flying right through the thermal and out the other side or through the ridge lift and into the rotor etc.

When I first bought my bicycle and was looking for a GPS device to go on it (before I bought my TyTN II) I was looking at Garmin pocket GPS units one of which had an aneroid capsule built in. I checked their website and this model is still being sold and this is what it says "For extra-precise climb and descent data, Edge 305 also incorporates a barometric altimeter to pinpoint changes in elevation." Having used the TyTN II's GPS with TomTom Navigator, Google Maps and Microsoft Live Mapping, and seen how it sometimes struggles with basic 2 D mapping, I definitely wouldn't trust it to be up to speed in what the OP wants - irrespective of what software is coupled up to it.