Breakaway Broadcast for ASIO?

Hi Ken!

I see what you mean.

I’m not sure ASIO support would help, as ASIO is usually single-client only (i.e. a card can only be opened from one program at a time).

The ESI-Maya 44 doesn’t support 192 kHz, so it can’t do composite out.

Am I correct in assuming that:
You’re running an FM station, you want to use an external stereo encoder (thus you’ll use the L/R outputs of BBP, at 44 or 48 khz), and you want to use Live for low latency monitoring?

Best,
///Leif

From what I remember of Leif testing this actual card… You can only output 192kHz if the card is not inputting any audio (digital or analog) or else it will be limited to 96kHz on the outputs.

Leif please correct me if I’m wrong.

But yes, I think that’s what Leif is referring to. Have you tested it to see if that actually works with 192kHz output while also inputting audio?

Also, the ESI card’s drivers support ASIO, ASIO2, MME (aka Wave), DirectX, and Kernel Streaming. That pretty much covers the bases. 😉 They are some of the best drivers I have ever seen for a card… really only Presonus and of course RME were better in my experience, which is a great compliment for a "budget" manufacturer to get from me. 8)

[quote author=”Ken”]>JesseG

I just tested: "live audio" input to ESi-MAYA 44 > BBP > out MPX via ESI-MAYA 44.

Works great, I have Airomate2 RDS encoder on PIpline1 to BBP. So ESI-MAYA44 can do in/out in 192k at the same time. And on Windows Vista 🙂

FM signal looks good after som tweeking in BBP, I messure with my FM analysator.

But I so much like to have a coposite-clipper, or final-clipper that Orban call it. I think what ever preset I use on BBP the MPX signal swing to much, I do sound great. But with a final-clipper I can soud loader without modulation over 75k.

/Ken[/quote]

The MAYA44 doesn’t even have 192kHz converters on the inputs. It only has 96kHz. Well at least it’s outputting 192khz from the DAC end… the 96kHz ADC will get upsampled by windows to 192kHz. See if you can input 48kHz instead while also outputting 192kHz for composite. That will get you the cleanest sound.

The "swinging" isn’t because of Breakaway. Running Breakaway on a properly calibrated converter you can be as loud as an Optimod 8500 cranked to 11. 🙂 The problem might be partly the capacitance on your outputs which will make the center of the signal move all over with the bass. This will also effect the tilt. There are modifications you can do to reduce this problem to almost none.

Did you perform one of the calibration methods in the documentation??
http://www.claessonedwards.com/index.ph … &Itemid=83

Hi Ken!

Orban calls a composite clipper a composite clipper, and they call a final clipper a final clipper. 8500 has a composite clipper – Breakaway Broadcast does not. However, a traditional composite clipper with Pilot Protection, such as the one in an 8500, only gives you an extra 0.24dB at best. Please see the following whitepaper by Greg Ogonowski (co-designers of the 8500): http://indexcom.com/papers/loud2.html

Search for 0.24dB on the page to find it easily.

If you have the time, I recommend reading ALL his papers on that site. Invaluable information, and 100% correct.

You’re right about the MAYA 44. My mistake — indeed the specs say 192 kHz.

Proper calibration is essential — a composite clipper would not help one iota if there is tilt or other damage happening after the clipper!

The modifications Jesse mentioned would involve modifying the hardware, but I don’t believe it will be necessary. Adjusting Tilt in BBP should be enough. Please follow the calibration guide at this site — it explains the calibration process step by step, in great detail. Follow the links from claessonedwards.com — Breakaway Broadcast, Documentation, Calibration (FM).

In Windows Vista, if you are using Wave or DirectSound, make sure you set the Shared Audio Format to 192 kHz or Vista will completely slaughter the MPX signal by converting it down to 48 kHz before reaching the sound card.

Best regards,
///Leif

Nice!

So, how does the signal look?

Shoot a movie of the oscilloscope (when playing music) and upload?

Or, if that doesn’t work, how about some photos?

///Leif

Hi Ken!

Those PEQ settings are incorrect. See all the squigglies on the squarewave? That’s coming from the PEQ. The PEQ is intended to correct for high frequency rolloff (to make the sweep completely flat), not to boost midrange. Any kind of "for taste" eq by the PEQ will cause severe loss of peak control, as this eq is AFTER the clipper, intended for calibration only.

It seems like tilt is slightly too high, but not bad.

For the QuickSweep, adjust the trig level on your scope to trig to the peak. This way the waveform will lock in place, making it much easier to see what’s going on. That’s the only reason why I included a sharp peak in the beginning of the sweep 😉.

Best,
///Leif