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internet audio processing setup

C

cranium

Guest
I'm curious if anyone is using sound solution to process their audio for the internet?

Otherwise, I'm looking for some general suggestions on how to pre-process audio for the internet. We will likely stream 32k stereo OR mono.

We're playing mostly current rock product. (heavily clipped to begin with)

We will be taking a stream source out of our console.

Is a roll-off of the highs and some light compression/agc suggested? Heavier compression on the lows or highs? I understand further clipping is a no-no.

Looking for suggestions and thanks for your help.
 
>
> Is a roll-off of the highs and some light compression/agc
> suggested? Heavier compression on the lows or highs? I
> understand further clipping is a no-no.

We're not a modern rock format, but we've found that boosting the highs seems to help a lot. This is done after compression, so there is the possibility that you could get some HF clipping. If judiciously set, it really seems to help. The curve we're using is quite close to the European 50us FM pre-emphasis curve. We're streaming at 32kBs stereo. It works on good dial up connections as well as high speed. Take a listen if you like, www.kzqx.com

Here is a suggestion. While streaming, take the audio output of another computer and run it into the audition buss of your console. Then do an A-B comparison through your monitor speakers. The two signals won't sound anything alike (it is amazing what gets left out using MP3) but at least you have a reference that you can use to set your streams processing. Let your ears be the final judge.
 
> I'm curious if anyone is using sound solution to process
> their audio for the internet?

If you search the engineering board, you'll find one of my sound solution presets. For some reason, it's a little tinny over the air waves but net radio without the pre/de-emphasis sounds great.<P ID="signature">______________
</P>
 
> I'm curious if anyone is using sound solution to process
> their audio for the internet?
>
> Otherwise, I'm looking for some general suggestions on how
> to pre-process audio for the internet. We will likely stream
> 32k stereo OR mono.
>
> We're playing mostly current rock product. (heavily clipped
> to begin with)
>
> We will be taking a stream source out of our console.
>
> Is a roll-off of the highs and some light compression/agc
> suggested? Heavier compression on the lows or highs? I
> understand further clipping is a no-no.
>
> Looking for suggestions and thanks for your help.
>

just use wav files.... processing plugins, etc will kill your computer cpu.
 
> > I'm curious if anyone is using sound solution to process
> > their audio for the internet?
> >
> > Otherwise, I'm looking for some general suggestions on how
>
> > to pre-process audio for the internet. We will likely
> stream
> > 32k stereo OR mono.
> >
> > We're playing mostly current rock product. (heavily
> clipped
> > to begin with)
> >
> > We will be taking a stream source out of our console.
> >
> > Is a roll-off of the highs and some light compression/agc
> > suggested? Heavier compression on the lows or highs? I
> > understand further clipping is a no-no.
> >
> > Looking for suggestions and thanks for your help.
> >
>
> just use wav files.... processing plugins, etc will kill
> your computer cpu.
>

I use SoundSolution though had to really tweak it to get the sound I needed. Processing wise I have no problems. Currently been running 436 hours since last reboot which was due to emergency maintaince on my compuer...just say my girlfriend didn't know there was no A: drive in the computer...
 
> > > I'm curious if anyone is using sound solution to process
>
> > > their audio for the internet?
> > >
> > > Otherwise, I'm looking for some general suggestions on
> how
> >
> > > to pre-process audio for the internet. We will likely
> > stream
> > > 32k stereo OR mono.
> > >
> > > We're playing mostly current rock product. (heavily
> > clipped
> > > to begin with)
> > >
> > > We will be taking a stream source out of our console.
> > >
> > > Is a roll-off of the highs and some light
> compression/agc
> > > suggested? Heavier compression on the lows or highs? I
> > > understand further clipping is a no-no.
> > >
> > > Looking for suggestions and thanks for your help.
> > >
> >
> > just use wav files.... processing plugins, etc will kill
> > your computer cpu.
> >
>
> I use SoundSolution though had to really tweak it to get the
> sound I needed. Processing wise I have no problems.
> Currently been running 436 hours since last reboot which was
> due to emergency maintaince on my compuer...just say my
> girlfriend didn't know there was no A: drive in the
> computer...
>
Does that program work with Shoutcast and winamp? If not does anyone know a program that will?
 
> > > > I'm curious if anyone is using sound solution to
> process
> >
> > > > their audio for the internet?
> > > >
> > > > Otherwise, I'm looking for some general suggestions on
>
> > how
> > >
> > > > to pre-process audio for the internet. We will likely
> > > stream
> > > > 32k stereo OR mono.
> > > >
> > > > We're playing mostly current rock product. (heavily
> > > clipped
> > > > to begin with)
> > > >
> > > > We will be taking a stream source out of our console.
> > > >
> > > > Is a roll-off of the highs and some light
> > compression/agc
> > > > suggested? Heavier compression on the lows or highs? I
>
> > > > understand further clipping is a no-no.
> > > >
> > > > Looking for suggestions and thanks for your help.
> > > >
> > >
> > > just use wav files.... processing plugins, etc will kill
>
> > > your computer cpu.
> > >
> >
> > I use SoundSolution though had to really tweak it to get
> the
> > sound I needed. Processing wise I have no problems.
> > Currently been running 436 hours since last reboot which
> was
> > due to emergency maintaince on my compuer...just say my
> > girlfriend didn't know there was no A: drive in the
> > computer...
> >
> Does that program work with Shoutcast and winamp? If not
> does anyone know a program that will?
>

Yes it does work with Winamp.
 
> What is your budget?
>

We have several spare computers...but, otherwise, probably about $200.00.

We also have a spare 8100, and compellor.

Right now we're sending bare bones console audio out, and it doesn't sound that bad !
 
> We have several spare computers...but, otherwise, probably
> about $200.00.
>
> We also have a spare 8100, and compellor.
>
> Right now we're sending bare bones console audio out, and it
> doesn't sound that bad !

You have all the tools to sound great... You may want to consider putting the compellor inline (to do a little leveling) and you'll be in really good shape. If you want to go more advance, you can use the RCA outputs on the 8100 and use it to do some lite processing…

Just make sure you turn the clipping completely off. Both options will provide the encoder with consistent audio which is the real key.

-R.E.<P ID="signature">______________
If you put your mind to it, you can accomplish anything...</P>
 
> If you search the engineering board, you'll find one of my
> sound solution presets. For some reason, it's a little
> tinny over the air waves but net radio without the
> pre/de-emphasis sounds great.

I think I've found that the tinny sound is a result of the usage of the AGC and density overdrive settings beyond a certain extent. I had that problem using the Optimod 8400 preset... just going into my stereo, not transmitted in any way. Once I cut back on those two settings and adjusted both the band gain and ratio settings in both the five-band and two-band modules accordingly, I was able to get rid of the tinny sound. I don't know how your preset is set up, Sam, but I suspect that adjustments like that will probably remove the tinny sound over-the-air. Why there would be a difference between the OTA sound and the streaming sound, though, I can't explain.
<P ID="signature">______________
radiodude.jpg

http://theradioblog.blogspot.com</P>
 
The difference might be because it's 32kbps audio, which is over 40 times compression compared to cd "quality"!!!!Anyways, you could try to get better quality from lower bitrate streams by... installing a relatively new version of the Fraunhofer directshow codec, and use Shoutcast 1.8.0. (or custom code & compile your own version of lame) Sorry that I can't help you "aquire" the Fraunhofer codec, but you'll find a way I'm sure.The end result is quality that isn't matched by anything else for low-bitrate mp3. 8)
 
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