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Hi there. I would love to know if if will use the MPX Breakaway Broadcast is something I will have a sound you can hear on FM radio?
For example: http://www.4shared.com/mp3/mUkPDIJu/Pro … rance.html (I recorded the FM radio on your hard drive)
I would buy a cheap sound card, 192 KHz. The second question is how much MPX needs KHz bandwidth in order to work properly? Not once read that the sound card has a 96 KHz bandwidth to 40 KHz and 192 KHz sound card has a bandwidth of 48 KHz. Maybe 96 KHz sound card will cope with the challenge of MPX?
I currently have an integrated audio card with 48 KHz bandwidth to 25 KHz and MPX here is not working properly (eg mute the stereo output) 😕I use google translator, I apologize for grammatical errors
here we just use breakaway with normal card, but with a external stereo/rds with mpx clippers preamps and stuff.
don’t make it to diffecult, keep it simple, thats the keyI understand that you’re talking about stereo generator. I prefer the sound card 192 KHz, it’s just cheap 🙂 . A 96 KHz card is fitted to the MPX output?
ThanksApprox 60Khz audio bandwidth is required for proper MPX operation. This requires a 192KHz soundcard to give this.
A 96Khz soundcard will give very limited stereo image (with no separation in high frequencies) and no RDS.For Breakaway broadcast on FM a 192 Khz souncard is an absolute requirement. This should not cause a problem these days as there are 192KHz cards that can be bought for very little money.
Many PC motherboards include very good suitable onboard codecs such as the Realtek ALC887, which is very popular and common these days. I have thoroughly tested this codec and it has perfect 192KHz operation, full bandwidth and no distortion.Be careful though, there are some bad 192Khz codecs out there such as the ViaAudio ones, they work at 192KHz, I even found they are usually DC straight but their frequency response is very poor and there seems to be some filtering on them as there are notches in the frequency response.
Without RDS, and with SSB, you can technically do MPX from a 96kHz audio card. 😉 But the question begs to ask… if you’re licensed, and successfully got approved by the FCC to try SSB within the test phase happening now, why can’t you afford a $120 Marian Trace Alpha for your station. 😉
So really, MPX on 96kHz is meaningless to a hobby caster, unless you aren’t on the FCC’s or some other regulation group’s radar, and hence doing SSB is the least of your concerns. SSB isn’t available in current Breakaway versions though, so… unless you have the cash for an Omnia.9 or Omnia.11, ehh. (StereoTool doesn’t support SSB yet, does it?)
Anywho… it is actually possible. Just… doesn’t make sense as an argument in this case. Even if Breakaway supported SSB. There’s cards for so cheap out there (Marian Trace Alpha) that can get you a great signal quality without any tweaking or adjusting required.
[quote author=”JesseG”]a $120 Marian Trace Alpha[/quote]
Can you please point me to where I can THAT awesome card that is recommended by Leif for $120 bucks? It’s an investment I am more than willing to make! 😀 😀
[quote author=”bennylein1985″]+/- 75khz so 176000hz are needed min. i think[/quote]
Stereo and RDS will work at 128Khz but very few cards support this. 192 is most common and some can do 176.
Thank you for the professional expression 😀 . Now I know everything from scratch 🙂 . Do not be angry, but I do not have a radio station 😳 . But I really like the sound of FM radio. I think the manufacture of the sound in your home, as ordinary Audio CD Mastering sound bores me. By chance I stumbled on broakaway broadcast processor, not knowing how the sound fm. On Leif’s learned a lot and I think buying a 192 kHz sound card and I wanted to make sure here. Why here? Because it is the only forum where you can learn about the techniques of FM radio and more. For my needs just Asus Xonar card ($ 25) 😉 which has a 192 KHz to 48 KHz bandwidth.
Edit: Sorry that I put audio sample 4shared. previously was no need for register to listen to or download audio
I hope you understood what I write 😉
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