feature request: AFSK test tones

kd7mrx commented 9 years ago

Please consider adding a feature to transmit AFSK test tones (mark, space and alternating - as are available from the TinyTrak and some other devices). This makes it much easier to check and adjust transmitter deviation, especially when the transmitter sends these two tones at very different levels.

A receive level indicator would be a big help for tuning the AFSK receive volume for best sensitivity while avoiding distortion.

Thanks, KD7MRX

ge0rg commented 9 years ago

There is already a receive volume indication in the APRSdroid status bar (should be a blue line right below the app title). Regarding the test tones I am not quite sure what would be the best way to implement it... maybe from the preferences dialog?

emiliogon commented 8 years ago

I don't see that blue line in 1.3 under Cyanogen 12.1. I did spend a little while blindly fiddling around with audio settings and watching for received packets, but that's a slow way to set up.

I would generally love to have a simple dedicated audio diagnostics or setup screen:

A basic VU/dB meter to make sure volume is sufficient and not clipping. An "optimal volume" line or bracket would be helpful.
An audio pass-through toggle so you can hear incoming audio through the device's speaker without disconnecting any cables.
The "Single Shot" button or other way to generate test audio.

A few extra settings would be handy, too:

A system input preamp control to adjust for odd radios & phones.
Preferred system volumes that are automatically set when starting the service, and perhaps reverted when stopping it.
A way to play system notifications through the device's speaker but still have AFSK go through the headset port (that way you can use a VOX HT but still get alerts, play music, etc.).

By the way, I just saw this in logcat; could it be related to this blue audio level bar that I'm not seeing? E/PhoneWindow(17799): Horizontal progress bar not located in current window decor

ge0rg commented 8 years ago

Regarding the volume indication (blue line): yeah, it looks like starting with Android 5 the UI doesn't have a field for it any more. I will have to find some workaround mechanism for that. Good suggestions regarding the other features!

emiliogon commented 8 years ago

Aha, that makes sense since I saw it on my HTC EVO under 2.3!

ge0rg commented 8 years ago

I've now fixed the APRSdroid UI to include the volume indication even on the most recent of Androids. This will become part of 1.4. Test tone generation will have to wait some more, sorry.

APK: http://aprsdroid.org/download/builds/APRSdroid-gl-2016-10-06.apk

ge0rg / aprsdroid

feature request: AFSK test tones #109