Stereo Tool

Hi Boris.
Can i ask you two questions?
- Do you change your configuration of transfering sound form mixer to main transmitter?
- And are you shure that your sound is in range of max 75kHz ?

it's impossible that you have distorsion in any tone, exept your sending more then 75kHz.

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Friends tell me, that frequency 15Khz lift level above 3dB.This will solve the problem?

no .. you already have distorsion on highs ..problem is somewhere else.

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I dont change my config- Mixer>dbx166>Relay1>Relay2>Stereotool>Transmitter

i still stand that configuration i tell you erlier will be much better than you do now.

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Looking at your screenshot:

- Your input signal seems to be very soft. So maybe your original transmitter is not broadcasting loud enough (which means that you get more FM noise, relatively), or your signal is just very soft (no problem).
- Your output signal is a lot louder. So you're increasing the volume - and I suppose that means you're also increasing the received noise.
- The MPX signal that Stereo Tool sends out looks clean (noise levels below -90 dB, that's close to CD quality). So there's nothing wrong there (of course your sound card might make things worse).

Please check the output of Stereo Tool without enabling MPX output (or by selecting Normal output). That way you hear the sound that Stereo Tool is broadcasting. It would really surprise me if that sound is any better.


Note: If you're using the NOISE GATE filter at value 9 as you mentioned earlier AND your input is this soft, you'll loose most of your high frequencies and get a sound like what I heard in your sample. Try the FM noise filter in "Tape Restore Live!" instead - that will work MUCH better.

Of course, with the setup you have now you'll never reach really good quality. After all, you're broadcasting a copy of a copy of a copy, with FM processing, pre-emphasis and bad reception in each step.

That is what i am talking...
if i understend him .. Sound from mixer goes to dbx .. then to transsmiter1 (with hardware stereo coder) then Tuner1 with stereo out and on another stereocoder and to transmitter2 .. now tuner2 with stereo output and in Juli@. He again says that he don't use mpx from ST so... stereocoder No.3.. and then Final.... main transsmiter. Even if he use mpx from ST will not help.

this way ..
- the best Stereo coders will turn around phases, shange levels ..etc..3 times in 3 ways ..
- tuners .. x3 .. what .. noise?!.. at -15
- listener's tuner is 4th. tuner..

again:
Mixer (balanced Out) > (balanced in) dbx (balanced out) > (balanced in juli@)pc with ST (mpx out from juli@) > transmitter1 > reciver1 > transmiter2 > reciver2 > Main Transmitter (Where both recivers have MPX out used for transmitters input).

- Like this you totaly avoid to use your hardware stereocoder(s).
- PC is at your studio (easy for control)
- MPX from Stereo Tool and Juli@ (which is better then hardware stereocoder) is not going thru 3 stereocoders.

So, you request answer how to transfer signal from studio and not to give a 1$ .. and this is answer and the much better way.

note: if your tuners not have mpx out, you can make them to have or someone who knows little abput electronics to make for you. (like i do for my tuner).

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