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Dsp-x Presets wanted

F

fugazi

Guest
Compared to most people on this board i am a real newbe when it comes to audioprocessing.I am tweaking around with the dsp-x but i need some comparison between real world presets ( running on a dspx ).I know firmware version 3 is launched soon with new presets added, but i would like to hear some user presets from various dspx users.Thanks in advance.Evert
 
>>What version are you running and what application is it being used for? fm with mpx output?Hi scott,I'm running 2.9, 50uS FM with mpx output.
 
fugazi said:
I know firmware version 3 is launched soon with new presets added, but i would like to hear some user presets from various dspx users.
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I can send you a few. Including a "ballsy" one that I really like 8) But I can't view your profile, so you'll have to tell us your e-mail.Mike also made a couple of very good presets :)Regards,Goran Tomas
 
Hi goran,I was awaiting that question..I couldn't achieve such clean loudness without clipping with the dspx. therefore we use solely software processing, but ofcourse not from the shelf. No offense to Scott, but software lineup goes louder&cleaner ! ofcourse with the expense of delay.speaking of loudness: This should be a good new feature for the dspx, a final lookahead limiter in order to achieve some extra loudness before driving the codec. Multiband lookahead final limiters always overshoot, singlebands final lookahead limiters do less overshoot, but do more pumping. But if driven moderate ( 2 to 3 dB ) this could add extra loudness indeed.SCOTT...??The streamer runs on an athlon xp 2400 with the following pluginns installed.- console dx, to stack directx & vst pluginns.- ultrafunk multiband compressor ( the best available, because it uses oversampling, almost no spectral aliasing )- Waves L2 as a final lookahead limiter.- spartacus vst stereowidener pluginn, orban 222a lookalike.- izotope ozone, as a multiband gate.furthermore we use an fraunhofer mp3 codec. Simply because it's according to my opinion the best codec around for mp3 encoding.The line up of the plugins:- izotope ozone, only as multiband gate.- Spartacus, vst stereowidener.- Ultrafunk, singleband compressor as agc. Slow attack, slow decay. compression infinite- Ultrafunk, multiband compressor as multiband agc. Slow attack, slow decay. compression infinite- Ultrafunk, multiband compressor as multiband compressor ..;-) Medium attack, medium decay. compression 2.5:1- ultrafunk, multiband compressor as multiband limiter. Fast attack, slow decay.compression infinite- Waves L2/L3 lookahead limiter as lookahead limiter for the codec. fast attack, slow decay. - fraunhofer Mp3 codec.Unfortunately none of the above compressors have the "hold" ability which leads to some breathing effect.Sorry for being oftopic ;-)Regards,Evert
 
fugazi said:
Hi goran,I was awaiting that question..I couldn't achieve such clean loudness without clipping with the dspx. therefore we use solely software processing, but ofcourse not from the shelf. No offense to Scott, but software lineup goes louder&cleaner ! ofcourse with the expense of delay.speaking of loudness: This should be a good new feature for the dspx, a final lookahead limiter in order to achieve some extra loudness before driving the codec. Multiband lookahead final limiters always overshoot, singlebands final lookahead limiters do less overshoot, but do more pumping. But if driven moderate ( 2 to 3 dB ) this could add extra loudness indeed.SCOTT...??Regards,Evert
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EvertFunny you should mention that because the new version of DSPX-HD and DSPXtra-HD has a further peak limiter to remove residual overshoots from the multi-band lookahead limiter, and I am talking residual. This will not be added to the dual processing path DSPX-FM or DSPXtra-FM as we have allocated the available resources to the FM path processing.I would like to make a point that the DSPX-FM lookahead limiter (which i assume you are using) has minimal overshoot. The fact that it is multi-band does not mean it works in the same way as multi-band limiters in that overshoots are generated by summation of the bands. The lookahead limiter in the DSPX-FM has a single control signal which effectively ducks all of the bands at once to maintain a constant output. This keeps the overshoots to an insignificant amount that is much less than you probably think it is. All the same, the secondary peak limiter in the HD versions will only be doing a very small amount of work and we will probably limit its drive control range from 0dB to +1dB.I would also be intrigued to know how you set up the DSPX-FM. Many users who have contacted us for advice on setup for streaming seem to have incorrect settings of HF clipping, Lookahead shelf and are using FM output mode rather than DR. This is one of the reasons we have introduce the HD versions.Best regardsScott
 
dspxscott said:
I would also be intrigued to know how you set up the DSPX-FM. Many users who have contacted us for advice on setup for streaming seem to have incorrect settings of HF clipping, Lookahead shelf and are using FM output mode rather than DR. This is one of the reasons we have introduce the HD versions.
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I think the best way to stream is to use the DSPX AES Digital Output making sure correct de-emphasis is selected depending on the pre-emphasis selected on the DSPX Input.You can buy a very cost effective sound card with appropriate SPDIF Coax inputs and outputs, such as the Aopen Cobra AW-850D Deluxe 5.1 Channel PCI Sound Card (under $50) and plug the AES output through a standard Balanced>RCA converter directly into the cards Coaxial SPDIF input. This allows you get to get maximum levels on your stream without worrying about clipping the analogue inputs on your soundcard (very easy to do as the software metering in most streaming applications cannot provide accurate level readings in many cases)As long as DR output is selected the DSPX clippers are bypassed for the Digital Output and it should sound great!I provided my loud preset (based on DR PRESENCE) to Evert for evaluation. It's not setup for FM so some pre-emphasis / clipping needs to be added (and don't forget the corresponding de-emphasis for the DR path) I'm running 1.4dB of lookahead limiting with heaps of multiband AGC for a nice dense sound.
 
>I would like to make a point that the DSPX-FM lookahead limiter (which i assume you are using) has minimal >overshoot. The fact that it is multi-band does not mean it works in the same way as multi-band limiters in >that overshoots are generated by summation of the bands. The lookahead limiter in the DSPX-FM has a >single control signal which effectively ducks all of the bands at once to maintain a constant output. This >keeps the overshoots to an insignificant amount that is much less than you probably think it is. Sorry, that's what i meant. Summing the bands creates overshoots in the combined signal again, which is not due to the separate limiters of the dspx. Overshoots due to summation is a natural phenomenon.I have no clue if the dspx ( IN DR MODE ) overshoots, but i'm pretty shure scott took great care to prevent this.To be honest, i have not looked at the amplitude "flatness" response of the dspx with the DR output. In FM mode ( via the build in stereocoder ) the dspx has a perfect peak control which is tested on a spectrum analyzer with an ETSI bandwidth mask. For streaming purposes it should not be very nessesary to have absolute peak control, since being the loudest on the dial on the internet is nonsense, but FUN!To be honest scott, we use solely software processing on our streaming server.The reason for this is that we miss loudness. I know expensive devices are available for extra loudness.Still, but in the future, who knows. The dsp-x is now solely used as an FM processor . I still need to test the dspx for streaming purposes, simply because it contains 2 processing paths. I hate using 1/2 a device... Regards,Evert.2 Cooks dancelimit radio.
 
EvertI have just added a final lookahead peak limiter feature after the MB lookahead limiting on the DSPXtra-HD and DSPX-HD. I should get them uploaded to the website shortly. I have let you drive it to +3dB so you can get that extra loudness you are after. I will look into adding the feature to the DSPX-FM and Xtra-FM shortly and will let you know if I am able to squeeze it in (code wise). It may be a couple of weeks as I am off to Broadcast Asia on Thursday.Best regardsScott
 
For all DSPX users,I have a minor collection of dspx user presets.If Goran Tomas and Matt agree with it, i would like to make these available to everyone.Just drop me an e-mail if you need them.Regards,[email protected]
 
For all users using dspx's

I moved forward and got myself an dspxtra.
this machine is awsome, the loudness perception is 2 to 3 dB on top of the dspx.
The firmware of this device is still under construction, but the 2.0 release kicks ass.

Regards,

Evert

ps. the presets for the dspx are still available for everyone. Drop me a line please if you need them.

Wanted: dspx-tra presets ;D
 
The DSP-X is no slouch... I have it as loud as some of the flagships in this market. It may be a baby, but like many babies, it can scream ;)

Mine has an Ariane in front. That addes more to the audio.

The Xtra is a fine box that has a better feature set and obviously can be VERY agressive. Six bands make for better consistancy and added loudness.

Usual disclaimer: try them all before you buy!
 
>>It may be a baby, but like many babies, it can scream

;-)

Yep, i must underline that as well.

>>The Xtra is a fine box that has a better feature set and obviously can be VERY agressive. Six bands make for better consistancy and added loudness

Correct, but the clipper section seems a copy from the dspx-shelf. I expected a 6 band clipper section.
This could do some serious improvement on the overall sound quality and (more ) extra loudness.

>>Usual disclaimer: try them all before you buy!

I'm very happy that BW ( scott ) offers this for their products.

My dspxtra is a keeper :p

Evert
 
fugazi, we just launched radioioDisco
http://radioio.sc.llnwd.net:8330/listen.pls
the channel is programmed by Barry Walters (senior music critic, rolling stone mag).

the processing is my "Ultra96" dsp which is 10+ years old now. it's unity-gain audio processing, so the volume consistency is 95% from the automation's wideband AGC before it hits the processing. :eek: it's single-pass-fft, completely "psycoacoustic" design, so input volume doesn't effect the final texture. (you should hear it on classical music ;) )

let me know what you think of the sound. 8) i really like the sound of your stream, especially about a week ago, seems a bit bassey atm, but i have 10 years head start, so sall good. the bass that is there on your stream sounds potent as all getout. :)
 
let me know what you think of the sound. i really like the sound of your stream, especially about a week ago, seems a bit bassey atm, but i have 10 years head start, so sall good. the bass that is there on your stream sounds potent as all getout.
Click to expand...

Actually, it sounds better then our stream.... Much better!
Your sound is not flat out, it holds some dynamics and seems very consistent.
Quality is very good for 128 kbit/s, what the bitrate of the input to the processing ( tracks ).
Personally, what i miss is the sparkly highs, but that's soo personal.

We are playing around with stereowidening ( spartacus.dll ) and the stream now has a bit of a floating mid stereo field. very annoying, but will be solved very fast.

regards,

Evert
 
Original bitrate is 320k mp3. The preset is "Default". I'm eventually getting around to customizing it something later this week hopefully. Increasing the bootyrifficness of the bass under 45hz, and lushing up the treble a bit. We all know Disco/Funk freaks love it. ::) ;D It also needs to be tweaked to allow a tad more "Krush" in the upper-mids, so the claps snap a lil more dense. And slight tweak of the noise reduction, cos much of this is off Barry's wax.

Glad you likey, it's hard to not enjoy listening to his programming, even dry. 8)
 
The only artifacts i heared were in the songs, but that's always with oldies..

What's this Ultra96, i googled but did not find any hit. Info?

regards,

Evert
 
Ultra96 = my own code. not on google, other than me talking about it, and i doubt i'v referenced it by name very often. it's only available to broadcasters that ioWorldMedia owns at the moment (i own stock, what can i say?) but i have been consulting & leasing units in a few non-broadcast fields on an "i'll call you" basis. That's how I got hooked up with radioio, back when it was a few computers in Mike's spare bedroom. He can program great radio for dang sure, and it is still the only broadcasting Ultra96 has ever been used on.

My favorite initial impression of Ultra96:
"Wow. What codec are you using?"
- Randy Michaels

[me=Jesse Graffam]kackles[/me]
 
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