Stereo Tool

I noticed in the stand alone version that you have included the ability to switch on the TA Flag, however this only seems possible within the "CONFIGURE..." part of the software.

I was wondering if you could allow the TA flag to be switched on and off remotely by DTMF tone detection or by command line. I guess that such a solution would work well with software based DTMF decoders such as NCH ToneDet.

I'll maybe experiement with your command line version to see if I can get it to work with NCH ToneDet but I hope that your could build a solution in to the stand alone version.

If you already have software that can detect this tone, the solution described in viewtopic.php?f=16&t=25 should work. I know that this method isn't very user friendly (yet), but it does work.

Using this method you can specify a file that Stereo Tool checks 4 times per second for changes in the settings.

In short:

1. Save your settings to a .sts file.

2. Add the following lines to that .sts file:

[Stereo Tool Dynamic Settings]
Poll STS Enabled=1
Poll STS File name=C:\your_sts_changes_file.sts

Replace "C:\your_sts_changes_file.sts" by the location where you are going to put a file with your TA setting.

3. Load the .sts file again.

4. To turn TA on (or change any other Stereo Tool setting), create the "C:\your_sts_changes_file.sts" file containing the following lines:

[FM Transmitter]
RDS TA=1

(0 turns TA off, 1 turns it on)

When the Poll STS feature is turned on, Stereo Tool checks if this file has changed 4 times a second. (Changing it within a second might go unnoticed because the time stamp of the file does not change!)


Note: The settings when closing Stereo Tool are reloaded the next time you start it, so you only need to do this once. Pressing RESET or selecting/loading another preset turns this feature off.

Does anyone still do this? So, does it make (a lot of) sense to add tone detection functionality?

I made a similar request some time ago. In germany we play the so called hinz-triller as in and out tone for traffic announcements. So I'll be great if you could add that. If you need a Hinz-Triller Sample, I could provide you one.

Uhm. This is weird. You're the 2nd person to mention this Hinz-Triller tone tonight! -> Edit: The other one read your post before I did.

https://upload.wikimedia.org/wikipedia/ ... riller.ogg

I found this information:
https://de.wikipedia.org/wiki/Autofahre ... nz-Triller

It shouldn't be too difficult to support this, but the site does mention that it leads to false positives, which turn TA on when you play certain music tracks.

The false detection is only on some kinds of RDS Encoders who don't do a properly FM Demodulation but only detecting tones at 2350 +/- 123 Hz, or if at the transmission site the HinzTriller is injected without proper notching out 2350 Hz in the music when injecting the sound.

If you use a FM Demodulator centered at 2350 Hz and then check in the demodulation the presence of 123 Hz for ~1200ms for TA=1 and ~550ms for TA=0 then it's running smoothly. In use in germany since the 1970s, so a stable technology

I've included an onair sample with weather-report, Hinz On, Traffic Info, Hinz Off and News:

http://picosong.com/success/fdd18620231 ... 297a440da/