PDA

View Full Version : having some fun with reverb



DPDAN
06-23-2006, 06:03 AM
A week ago, a friend called and asked me if I could record his church choir performing Mozart's Requiem, "of course I said!" The church also had a small orchestra consisting of about eight string players, two clarinets, two bassoons, two trombones, a trumpet and timpani.

I used a simple recording setup consisting of two mics on the orchestra, about 15 feet apart, two mics on the choir about 15 feet apart, and two mics for solos, where at times, all four soloists sang together. Both the Neumann mics that were used for the soloists, and the four Oktave MK012 mics for choir and orchestra were plugged into a Motu Traveler firewire audio interface, with the help of a two channel mic preamp to assist with additional mic inputs, (the Traveler only has four mic inputs) this in turn is connected to a Mac Powerbook to record with Digital Performer.

Anyway, this gets interesting, the tenor soloist decides right before one of the movements, that he could not stand and sing, he was having some health issues, he's OK now, so,..... while everyone is getting ready to perform the next piece, the director looks at my friend Eric and whispers, "can you take it?" Eric nods ever so slightly "yes"... The piece starts, and it is time for Eric to sing the solo. Never hearing the solo before at all, he sight-reads it live. The first half of his solo was good, the second half not so good, but he got through it. Whew! After mixing all the movements for CD, I called Eric and said "hey, why don't you come over and re-sing your solo... I can patch it in. So, I used only the orchestra mics during his solo, and his original vocal was not loud enough to interfere with his new solo from my little mix room, I think it fits right in. I do not have an actual recording studio, but I do have the equipment of one, so Eric stood in my mix room about two feet from a Neumann U87 mic, and then I used Altiverb to position Eric approximately where he was on the stage at the performance. This was especially easy to do since I had recorded my own impulse responses of the sanctuary before the concert. I had to turn off the air conditioners of the sanctuary for noise purposes before I could record the tone sweeps. This sanctuary is only about 80 feet from front to back, and about 40 feet wide. Not very big, and the choir has just about 45 members but they have a decent sound.

So, Here are a few MP3 examples of what can be done with Altiverb stage positioning. Don't concentrate so much on the music, but more on the amazing realism of the results of the dry vocal in a small bedroom, then pumped into Altiverb. All of the sudden, he is standing right next to the other soloists, pretty cool.

The whole performance was actually really nice, the orchestra rehearsed only twice with the choir, amazing. This Mozart Requiem is just under an hour, and the Mac recorded nonstop with no problems. I was happy, look Dad no tape. :D

I congratulate Eric, this is not exactly his cup of tea. He sings lead in the International World Champion Collegiate barbershop quartet called Vocal Spectrum. He also sang for my rendition of The Christmas Song on the recent Garritan GPO Christmas CD.

Listen to the final mix (http://www.mydocsonline.com/pub/DPDAN/with%20orch%20b.mp3)

listen to Eric at my home (http://www.mydocsonline.com/pub/DPDAN/without%20orch%20b.mp3)

Listen to Eric with Altiverb (http://www.mydocsonline.com/pub/DPDAN/vocal%20with%20verb%20b.mp3)

Here is the third movement Dies Irae (http://www.mydocsonline.com/pub/DPDAN/Dies%20Irae.MP3)

I thought it would be interesting for some of you who don't know much about convolution reverb technology to hear first hand how amazing the technology is. This software is only $500.00 and is available for Windows and Mac platforms, I understand Gary Garritan is coming out with some stunning Impulse responses that just may be compatible with Altiverb, I'm not sure of that so don't quote me. ;)

Thanks for listening.

dpDan :)

wilx
06-23-2006, 06:28 AM
An impressive demonstration. Sounds like one of the violins is tuned 'interestingly' though!
I'll be getting a decent audio interface when I have the cash, so it's interesting to know that the traveller can cope with this sort of stuff. Thanks for posting this.

DPDAN
06-23-2006, 06:33 AM
Hi Wilx,

While a few of the players were "brought in" most of the orchestra was volunteer as is common with most church oriented productions and performances. I agree it's not a perfect performance as you heard. :eek:

By the way the Traveler is wonderful!

Dan :)

Poolman
06-23-2006, 09:15 AM
I agree with wilx - an impressive demonstration.

Eric has a lovely voice; excellent intonation and consistency throughout his range. Use him more often!

Terry

Rhap2
06-23-2006, 11:23 AM
DPDAN:

Let's face it, you are an AUDIO MIRACLE WORKER..............

Jack

Craig Reeves
06-23-2006, 02:34 PM
Wow, that's amazing, DPDAN!

I wish I had the equipment and know-how to program my own impulses....but of course, I have the guys at Altiverb now to do that for me.

Thank you so much for turning me on to this awesome technology. I have fallen in love with this software and it just makes GPO come alive. Sequencing is truly a joy again and I just love the way my music sounds in those awesome, acoustically tuned, concert halls. Although I've had my music performed by orchestras in the past, I no longer have to just "imagine" what my piece would sound like by the Moravian Phillharmonic in Sydney Opera House. :)

Expect some excellent sounding demos from me in the future because of this great stuff!

DPDAN
06-23-2006, 04:26 PM
Thank you Terry so much! :)

Jack, you are my hero!!!

Craig, all you need to create your own impulses is two decent mics and a nice studio monitor with good flat frequency response and you're set. Altiverb provides everything else you need to record the tone sweeps.

check it out!!!!

make your own Impulse Responses (http://www.audioease.com/Pages/mp3%20Altiverb%20Tests/HowToMakeASimpleIR.html)

Dave Hoffman
06-23-2006, 09:53 PM
I wish I had the equipment and know-how to program my own impulses....but of course, I have the guys at Altiverb now to do that for me.

When I program my impulses, I come up with Rocky Road ice cream, bacon, and beer.:eek:

Leaf
06-23-2006, 10:19 PM
Hi Dan. Sounds awesome. That altiverb does a fantasic job! They should give you a commision for promoting it.:D I'm going to get Digital Performer when i can, then later altiverb and traveler. I also have a powerbook, it is a little 12' 1.5Ghz and right now only has the 512 of Ram it came with. How much Ram is needed to run DP?

David

etLux
06-23-2006, 10:39 PM
Astounding!

I rename thee, Merlin Kury!

David
www.DavidSosnowski.com
.

Craig Reeves
06-26-2006, 02:00 PM
Wow, that's awesome, but unfortunately at this time it doesn't seem like that feature is included in the Windows XP version of Altiverb. I guess I'll have to wait until it's included because I think they'll eventually add the feature.

Do you know if there are people out there, like third party developers, of Altiverb impulses out there who sell them to people?

DPDAN
06-26-2006, 02:23 PM
When I program my impulses, I come up with Rocky Road ice cream, bacon, and beer.:eek:
hilarious Dave!

Leaf, you can run DP5 on your laptop, it just isn't powerful enough to run 5 or more Altiverbs with loads of tracks. However, with a few simple workarounds like recording the reverb to a stereo audio track, you can use as many as you like with the help of clippings. In DP, "clippings" is a feature that allows you to save settings or actually, an entire bank of plugins, meaning....., after you record your Altiverb for strings, save that Altiverb setting into a clipping folder then delete it from the project. This will allow you to open another Altiverb Woodwinds, then brass and so on.

David, Merlin Kury.... ha ha ha! :D

Craig, I'm not sure of any, but there is probably a place where you can download IR's made ny users of Altiverb 5. Not sure though. As many IR's as there is included who really needs more? :)

Thanks Guys!
Dan

howardv
06-26-2006, 03:19 PM
Nice work on the mixes, Dan. And nice work unscrambling the egg to separate the live instruments from the live vocal. I find the challange of doing that so daunting that I've resisted ever attempting it myself.


Wow, that's awesome, but unfortunately at this time it doesn't seem like that feature is included in the Windows XP version of Altiverb. I guess I'll have to wait until it's included because I think they'll eventually add the feature.

Do you know if there are people out there, like third party developers, of Altiverb impulses out there who sell them to people?I use the same approach outlined by Dan for adding vocals recorded in a booth to piano parts recorded in my living room. Been using Voxengo's Deconvolver for the sweeps and processing. Then either their Pristine Spaces or GS3 for application. Looking forward to the WinXP Altiverb update to streamline the process.

Howard