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Hi Leif,
A quick question, if I were to run two instances of BBP on a machine, do 2 complete soundcards need to be installed or is it possible for the output of one instance to use the left and the other, the right channel of the main output card?
I do this on some installations with 2 instances of Airomate, which can be set up this way (with a bit of fiddling), I have 2 different stations coming out of each of the channels of the soundcard. This works brilliantly. Just wondering if the same is possible with BBP.Hi Yorkie!
There are professional sound cards where this would be possible, where L and R could show up as different devices. However, most sound cards do not support this.
///Leif
[quote author=”Leif”]Hi Yorkie!
There are professional sound cards where this would be possible, where L and R could show up as different devices. However, most sound cards do not support this.
///Leif[/quote]
Would it be possible to add this as a feature in BBP? If a device cannot be individually addressed, maybe if the current 1/2 channel selection on the main output (which seems to provide no function) can be set to L or R or both. I know it’s not strictly possible but here’s how I trick Airomate into giving me 2 seperate outputs from 1 card.
Instance 1 of airomate has audio from station 1 going in, the output is set to the appropriate soundcard (eg Audigy 4). I then switch the syncronisation channel ON (to channel 1) but then turn the volume down to 0. This then gives me the mpx for station 1 on channel 2 and nothing at all on channel 1.
I bring in the audio for station 2 into instance 2 and again turn on the sync channel but this time select channel 2 as the sync channel and again turn it down to 0.
Hey presto! each channel of my soundcard is carrying a completely different mpx signal which is then in turn fed into the two transmitters.So, to make this possible, you simply need to make BBP output the mpx from instance 1 on the selected channel only and digital silence on the other just like airomate can be tricked into doing. If this is reversed on the other instance, this will work. I’m sure this would not be hard to acheive. It would certainly help in reducing PC costs.
My other, but less preferred method would be to let BBP do just the processing, and feed the L/R outputs into airomate and let it do the stereo encoding (it does the RDS anyway) but I’m sure the encoder in Airomate is inferior to your own (Sorry Arjen!).
Anything is possible, but at this point I have to ask, what on earth for??
I mean, how often does one really have two FM transmitters with MPX inputs in one place? 🙂
Channel selection makes sense though — that’s not too hard to implement. I’ll look into it.
Best,
///LeifHi Leif,
I do quite often work at sites where there are multiple TXs at one site. As some of my clients are pirate broadcasters, with multiple stations broadcasting from the same site, it’s all about minimising the equipment at the transmitter site whilst keeping the engineering standards as high as possible. That’s why software like yours is a godsend but if these tweaks can be possible, even more so.. If a raid happens, why lose two PCs when one PC could be doing all the work?
Hope this makes sense..Makes sense. I’ll put it in, but you will need a 2-instance license for BBP. Two 1-instance licenses will not do it as that requires two PCs.
Also, this does not work with BBP ASIO unless you have a card with an ASIO driver which can be opened by two programs at the same time. If you do, then this is already supported by BBP ASIO today, as you can choose MPX output channels individually.
Best regards,
///Leif
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