Stereo Tool

Yes, unless you use ASIO (but I don't know if you can easily stream that).

I cannot test it right now - but it might be that if you enable pre-emphasis + pre-emphasize output, disable FM output and only enable Normal output, that it outputs pre-emphasized audio (I know that this works in the plugin version, but I'm not sure about the stand alone).

Having said this, I have to agree with Bojcha - you're loosing multiple dB's in loudness (especially highs) and some other tricks that improve the reception of your station by not using the composite clipper... Either streaming 192 kHz (mono) audio or using Stereo Tool at the transmitter will give you a much better sound on FM...

What I usually advise to people who want to use Stereo Tool and send the audio (especially if it's lossy compressed audio) to the transmitter is this:
- Run Stereo Tool in the studio, but without the FM part and with no or nearly no clipping.
- At the transmitter site, run another copy of Stereo Tool that only does the FM stuff and clipping.
- Make sure that the levels are set such that the output (except for the lossy compression) is identical to what it would be if you were just running your preset on a single system. How? Well, at the studio, you have an Advanced Clipper drive (which is lowered to avoid nearly all clipping) and Post Amp value. Say, 0.5 and 0.8. Multiply them (0.4). Then at the transmitter, set Pre Amp to 1 / calculated value, so in this example 1/.4 = 2.5. And make sure that the preset is loaded, but everything upto the Advanced Clipper is disabled.

Advantages:
- Compression, stereo widening etc. is all done BEFORE the lossy compression happens, which means that the lossy compression is far less likely to make 'wrong' decisions about what will be audible and what won't be.
- You can monitor the outgoing audio at the studio
- If needed (not really advised though until more tests have been done...) you can use a simple Shoutcast stream to send the audio to all the transmitters. No need for special streaming equipment, because the different Stereo Tool instances at each transmitter site can keep the audio synchronized between the transmitters (!). This means that you need a lot less equipment at the transmitter site, basically you replace a streaming box, RDS/stereo coder, some clipper (to clip the lossy audio which gets peaks again) by a single pc. If you don't trust a pc at your transmitter site, you can probably put a 2nd pc there for the price that all the other equipment would have cost. And the audio quality will really be a lot better this way.

Final note: If you split Stereo Tool in 2 parts, where you run part of the processing before streaming and part of it afterwards, that's covered by the license - so you don't need 2 licenses for this (you do need a license for each transmitter site though).

thing is that you anyway need pc at transmitter site to "catch" stream.. so why just not stream unprocessed audio and catch and process stream on every transmittet site. Not to mention "sync".

Yes computer is needed on transmitter side . And it`s good to stream unprocessed audio and then use preset at the transmitter side. Think that is the best you can do in this case.

But Hans just gave you the case with "splitting" the St into two parts , so ...your choice
The only thing is that none of the plugin versions not have a "Normal Output" .

No problem because it's lossless stream or very lowloss and spikes produced by encoding are small and well clipped at transmitter site.
Who wants to put eg. very expensive Orban to every trasmitter when playing same audio in both?
Typical known for me configuration is 1 Orban i studio and eg. 100 cheaper Orban stereo encoders at 100 transmitters site to clipp loss encoding spikes, belive me effect is very good.

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Urban Junglist

But a pc that receives the (already processed!) stream and only needs to clip it can be a lot cheaper than an Orban, and you don't need a device to connect to the stream. So IF you have a pc there anyway, I would really suggest to run ST on it. If you don't want a pc there or if you already have all the other equipment, then you can do it as you described (but you still loose the composite clipper in ST, hence several dB of audio, and possibly some clarity as well, if you use another clipper).

I know every aspect what happens with audio in those solutions.
Of course the best is feed transmitter direct from processor composite.

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Urban Junglist

There are motherboards with 192Khz cards for as cheap as 50-60 Euro, so whole computer with ST will cost no more than 500-550 euro for a point of transmitting (yes wihout the transmitter) . And you will have : Sound processor from a high class , Stereo coder, RDS + computer for easy catch of stream , looks like AIO system. If you buy them separately , price will grow up.

I still suggest enabling the "synchronization with output" for playing a stream via VLC player because buffer is empting after some time

And why "X" component is 0.999 or goes to 1.001. "M" is going from 0.9752 to 1.021. ... before was stand still at 1.000 and "M" parameter was 0.9975 ? What behavour is the right one ?

I can say that now "M" is almost always moving ...

Try "relative adjust" 0.20%. That thing is kinda rushing too much.

Will try but.... i wonder why before 7.40 i think things was different . Setings are still the same 0.50% and 8 . I try to set it 16 and above 32... same thing . try even 100% little effect . This is no problem but just saw it and make the difference to before.

P.S: Oh yeah may be i just set settings but no restart of ST . Now with 0.20% looks like more stable . Thanks Bojcha !