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I’d be quite nervous using one of these myself, it’s simply another place where things can go wrong..
Also I’m not sure but there might be some limitations on the throughput of the mini PCI-E connector as the Juli@ is also available in PCI-E but only supports 96Khz, despite being based around the same DAC. This makes me think that this must be a restriction of the PCI-E architecture.
If I’m wrong here, please out me right..Yorkie.
If I HAD to do an MPX run of this kind of length (which I would try to avoid if possible) I would use a high grade satellite cable (double copper screen) such as WB100 or similar, this should be easy to obtain locally and resonably priced.
Hope this helps,
Yorkie.Hi,
I can’t find very much info on your soundcard but it does seem to use the envy24 chip which I would guess means it does run at 192Khz but at what quality, it’s hard to know.
The current line of Hercules cards look very cheap and nasty so IMO i’d upgrade if you are having problems either of the ESI cards are very good the Maya44PCI or the Juli@ are very good but if you can stretch to it, get the Marian Trace Alpha, there is no better card for Breakaway.As for the tilt value, there is no such thing as a correct tilt value for this card or that card as it is individual for each individual card and transmitter setup. It needs to be set up properly using the methods shown on the website.
There is only one card where the tilt level is known for all setups and that is the Trace Alpha and the tilt value for that card is 0..The only acceptable "quick" method I sometimes use is IF you have a transmitter with a deviation display, you can set the tilt (roughly) by selecting the 60hz SQ wave, adjusting tilt for minimum deviation on the display, then go back to normal output and adjust transmitter input level to 75Khz deviation.
You are not alone with the pipelines issue, I have it too, most seem to and it was discussed at length here with no conclusion or solution found. I have temp solutions running on all my installs (scheduled restarts every few days at 3AM along with occasional unscheduled manual restarts when it pops up after shorter periods) and I have learned to live with it albeit an inconvenience. When the station owners ask me if there is a way to stop this occurring, I say yes, get out the cheque book and write me a cheque for £10,000. This seems to keep them quiet for a while..
I’m very hopeful that the new version sorts this problem once and for all an I can finally stand by my endorsements of Breakaway 100%.Optical I/O (Input/Output) is simply using an optical cable to link the soundcards on the 2 PCs instead of just using an analog jack lead, So it is exactly what you are thinking of. This is of course all irrelevant as you seem to have got it all working on the one machine again.
Yorkie.
As for your soundcard… Do not buy an M-audio, If you can budget for it, Buy a Marian Trace Alpha, if not, buy an ESI Maya44PCI, for less money than an M-audio and better quality.
To get your composite signal, you are either going to need a very long cable or a composite RF link of some kind.The ideal scenario though is to have the breakaway PC at the transmitter site and you send your audio from the studio to it (as normal L/R audio) using a wireless data link which can be connected to your studio computer network. This means that the remote pc can still be accessed/controlled using software such as Remote Admin or Logmein as if you were sitting in front of it.
[quote author=”mick heaphy”]so i’d probably do it like this. cable from sam pc sound card into breakaway pc sound card and another cable from breakaway pc back into sam pc sound card. as sam has its encoders built in i’d want to make sure the processed audio goes through them. i must admit i did think of something as obvious as the sound card and cables option but i thought their might be another better way to do it.[/quote]
As I’m a purist, I’d try to use optical I/O both ends as this will be much better quality then analog cables but again, I fear this might be slightly stating the obvious..
Yorkie98.
OK, firstly for AM it does not matter if you have a compatible or approved card, this is only relevant for FM as 192Khz samplerate is needed to cover the full FM audio range. For AM, this is not needed, any quality soundcard will do 48Khz is fine for AM.
Now for AM you’ll need to make a few changes as the defaults are all set for FM.Firstly, go to Settings, then I/O config. Set the MPX output to "disable" and set the L/R output to your soundcard output that you will connect to your transmitter, then click finish. Go back to the settings menu and you will now see you have some nice options for setting up for an AM transmitter including the all-important asymmetry setting.
De-select stereo (unless you are running AM stereo), you will now set your Low and High pass filtering depending to your bandwidth requirements and you will need to set your tilt, set your HF responce and check the linearity (These are very important steps but require an oscilliscope). Instructions for setting these up is here: http://www.claessonedwards.com/index.php?option=com_content&view=article&id=54&Itemid=58Hope this helps.
Yorkie.
[quote author=”Leif”]Wow.. AudioTX is $799?? For a point to point streaming tool??
Looks like I’m in the wrong business!! I’ve spent years developing audio processing — if I would have just made a streaming tool instead, I could have done it in days, and been rich! 🙄
I’ll make an vorbis based replacement. This is just shameful.
For those not familiar with it, Vorbis is comparable in quality to AAC, and much better than MP3 — and it’s open source/free.
For those familiar with it, I’m saying "Vorbis" as opposed to "Ogg Vorbis" because I don’t intend to use the Ogg part. 🙂
///Leif[/quote]
A good yet economical program of this type is what we have been crying out for, for years and even AudioTX is not perfect. I’d be interested to see/evaluate anything you can come up with.
Yorkie.
[quote author=”didac”]Sorry, I like the compression artefacts of MP2… hehehe 😆 😆 😆[/quote]
What is there to like??There used to be an MP2 compatible codec called tooLame. Maybe this will work in something like Edcast, otherwise, there are very few options as MP2 is not widely used, less efficient tha MP3 and expensive to licence.
[quote author=”Leif”]Hmm. I’ve already added FLAC recording with silence detection to my framework. FLAC might be a bit big — I can’t do MP3 because of licensing, but I could do Ogg Vorbis. Splitting hourly is no problem. This could make a nice feature for that pro version, since every on-air station does have to log (afaik).
///Leif[/quote]
Just add in "delete files after X days" and variable splitting and it’s perfect for compliance logging. here in the UK we have to retain recordings for 42 days and no engineer wants to have to consider periodical cleanups, we like the software to do it for us.
As a way round MP3 licencing, could it record via ACM as an option then when you select the recording format, if an MP3 ACM encoder is installed, it will record in this format? Also maybe CELT could be used?Yorkie.
Hi Leif,
That is looking very nice indeed, I’m eagerly anticipating it’s release.
Would Leifcast also be one of the optional addons? A reliable webstreaming client is still something we are missing, Edcast is OK but not perfect.Keep up the good work..
Yorkie.
BUMP!!!
Now Leif is active on the board again, I thought I’d push this thread into his eyeline.. 😀Yorkie.
