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Gear / Technical Help => Ask The Tapers => Topic started by: chunga1 on May 02, 2008, 04:46:50 AM

Title: help!! can I fix this recording?
Post by: chunga1 on May 02, 2008, 04:46:50 AM
I just got back from seeing RUSH in phoenix..The tape came out good, but the wind was blowing and now I have some swooshing sound on the songs??
I used AT-831-SP-SPSB-1(w/107Hz rolloff)>Zoom H2 48/24..can I fix this or is it lost to the wind or did something else cause this weird noise...I was stansding very still with the mics clipped to my hat. Limelight is the worst with this noise, but the whole show is like it, just not as bad.
sample
http://rapidshare.com/files/111936391/limelightsample.wav.html

http://rapidshare.com/files/111936961/digitalmansample.wav.html


thank's
Title: Not that I know of...
Post by: jacobmyers on May 02, 2008, 01:13:37 PM
 I'm really not liking RapidShare and their "whimsical" Kitty-Captcha. Decent transfer speed, tho. Anyway...

 It doesn't sound like wind noise as I'd think of it. It sounds more like a tape player that needs azimuth adjustment playing a sun-warped tape. This may be because the PA was loud enough (and the bass rolloff was high enough) to drown out (the rumble of) what I'd think of as wind noise. And then there's that crusty Motorola (0:46 of the "Limelight" sample). ::) It sounded like their FOH was doing it up right and the band was spot on; could've been a good show to hear in person. Major fucking bummer about the recording, though.

 I'll assume that you used the included clips, which don't look incredibly sturdy, to clip the mics to the sides of headband of the hat. If you move your head - even a little - or if you jostle the cables (which could move the mics), that would do some weird-ass shit to the staging (which is already a little "off") and it'd probably sound just like what I heard. But then again, it may have been the wind (but as I said earlier, it doesn't really sound like it to me).

 That said; there's nothing I personally know of (as far as a plugin or whatever) that will "fix" that recording. I mean; both channels would need to be adjusted (panned?) pretty much frame-by-frame to get the staging back to some semblance of "normalcy" (a baseline probably based on a "known-good" section of the recording). It makes my head ache just thinking about having to code something like that... Best of luck to you.
Title: Re: help!! can I fix this recording?
Post by: Brian Skalinder on May 02, 2008, 02:06:23 PM
I haven't listened to the samples, and can't until later this weekend.  But from the description, it sounds like the "swishy" sound is probably phasing, or phase shifting.  I don't know of a way to fix it in post.
Title: Re: help!! can I fix this recording?
Post by: chunga1 on May 02, 2008, 09:31:09 PM
I was standing very still..I've used this method with all stealth shows I tape indoor and out, as this venue was..But I've never had that sound before..I clip the mics to bill of the hat.The wind was blowing hard, very hard at times..It was the first time I used the Zoom H2 though..I usually use my Jb3, but I figured I got this H2 mught as well try it...any suggestions or help to not have this happen again is welcome..It does sound like old warped tapes like some of the funky old Dead tapes I got when i first started trading...It's very frustrating because without that damn noise this recording would've turned out pretty good.
 :(very bummed about this... :'(
thank's
Title: Re: help!! can I fix this recording?
Post by: chunga1 on May 02, 2008, 09:37:37 PM
I mean I can't say my head didn't move at all, but it moved as much as other shows and this didn't happen at all....But there were people walking in front every other minute with bathroom and beer breaks, could that have made thast weird noise??
Title: Re: help!! can I fix this recording?
Post by: jacobmyers on May 02, 2008, 11:06:16 PM
I mean I can't say my head didn't move at all, but it moved as much as other shows and this didn't happen at all....But there were people walking in front every other minute with bathroom and beer breaks, could that have made thast weird noise??

 Yes, it certainly could. Now that you mention it, that's more what I'm hearing than motion of the diaphragms (though they have a similar effect); refraction! People walking in front of a microphone (or just standing there) do absorb/refract a certain amount of sound. Their proximity to the microphone (closer), their mass (larger), and distance from the sound source (farther) determine the severity of the effect. In other words: if they're close to the mic, morbidly obese, and far from the source, they will ruin your recording!

 I think you may have solved your own mystery. But the only cure I know for the "people proximity" effect is a clear line-of-sight to the sound source (tall mic stand, stilts ;), etc.)

 I have, though, found the effect to be useful in some situations. I once recorded (Tascam 488 & Sony MS907) a jazz trio at a local restaurant (formerly a clothing store - go figure). The place had display windows with a ~8" rise on either side. It was a long, narrow room. We set up the drum kit in one of the display windows for the particular reverb that it imparted. I put the bassist was on the left (Ampeg B12 near the side wall) and guitarist on the right (Fender 2x12). I put the mic about 10' back and with the snare just off-center (to make a pocket for the vocalist). Their drummer was heavy-handed but refused to use brushes (::)) so I had the guitarist stand in front of the kit to stifle the attack a little. It worked. 8) The recording sounded good (for being made with the MS907) but the group disbanded the week after I made the recording. Then they flaked out on my pay. >:(
Title: Re: help!! can I fix this recording?
Post by: Brian Skalinder on May 03, 2008, 02:37:41 AM
IME, moving one's head, people walking about near the mics (if the mics are not above the crowd), and strong wind all might cause the effects I hear on the samples.  In the latter, it isn't the wind hitting the mic itself that causes the phasing, it's the wind actually "pushing around" the sound waves between the PA and the mics.  Which of the above is the cause in this case, I'm not sure.
Title: Re: help!! can I fix this recording?
Post by: chunga1 on May 03, 2008, 03:57:07 PM
thank's for the answers...Makes sense.. too bad I'm not 6'7  only 5'9, so the mics being above the crown isn't an option :(..next time I'll just have to get seats with no aisle in front of me...
Big bummer had this not happened the recording came out pretty good I think, Rush had amazing sound that night..No security check at the gate, no metal detectors and no screamers around me...It was almost to good to be true ;D

I was very surprised at how many people were walking in front of me..The lady next to me even made a comment about it at intermission..oh! well better luck next time...

thank's again for the answers...

tim(chunga1)
Title: Re: help!! can I fix this recording?
Post by: bluntforcetrauma on May 05, 2008, 10:43:46 PM
I was standing very still..I've used this method with all stealth shows I tape indoor and out, as this venue was..But I've never had that sound before..I clip the mics to bill of the hat.The wind was blowing hard, very hard at times..It was the first time I used the Zoom H2 though..I usually use my Jb3, but I figured I got this H2 mught as well try it...any suggestions or help to not have this happen again is welcome..It does sound like old warped tapes like some of the funky old Dead tapes I got when i first started trading...It's very frustrating because without that damn noise this recording would've turned out pretty good.
 :(very bummed about this... :'(
thank's

get the mics inside the hat!!!!!  I am wave on DIME oh by the way you are 2 inches taller than me, so get the mics inside the hat and get as close to the sound source as possible, decrease the distance between you and the sound.  I would say if you are stack recording, dont go beyond 12 row on the floor for either inside or outside venues.  Now inside venue you can reach outer stacks that will give great results from first sections off the floor say half way up, again triangulate for the speaker itself not the whole venue.  Too much white noise and reverb is picked up from to far away.
Title: Re: help!! can I fix this recording?
Post by: chunga1 on May 05, 2008, 10:56:14 PM
inside the hat...doh!!! I clip them so that they're on top.... :o  I'll do that next time....thank's...
Title: Re: help!! can I fix this recording?
Post by: bluntforcetrauma on May 05, 2008, 11:02:36 PM
inside the hat...doh!!! I clip them so that they're on top.... :o  I'll do that next time....thank's...

they can still " be on top" just get them inside on top. 17 cm or so apart.  You will see that there is a little " pocket " up there where no head dares to roam.
Title: Re: help!! can I fix this recording?
Post by: chunga1 on May 05, 2008, 11:12:57 PM
they're on top of the bill right where the bill attaches to cap portion..not on the outside of the hat..


some screen soltd of the wz at 44.1/16
Title: Re: help!! can I fix this recording?
Post by: chunga1 on May 05, 2008, 11:22:42 PM
maybe someone can answer me this..Most Rush shows average about 1 gig or so compressed at Flac5..Mine is only445mb ..I recorded it at 24/48 dithered and resampled to 44/16..My individual uncompressed file sizes macth most other songs from this tour..Why is mine different??

I just went through the wavs for this show http://www.dimeadozen.org/torrents-details.php?id=192732

and through the one I recorded http://www.dimeadozen.org/torrents-details.php?returnto=%2Faccount-cp.php&id=195483

checked the wavs for the same songs and mine are relativley the same size but when i compressed mine to Flac it's way smaller in size 445mb as opposed to 1.5gig

can anyone explain this to me
Title: Re: help!! can I fix this recording?
Post by: bluntforcetrauma on May 05, 2008, 11:36:44 PM
maybe it just because you used level 8 on flac compression?  would it make that much of a difference between level 6 or 8 ?
Title: Re: help!! can I fix this recording?
Post by: rhinowing on May 06, 2008, 11:28:47 PM
maybe someone can answer me this..Most Rush shows average about 1 gig or so compressed at Flac5..Mine is only445mb ..I recorded it at 24/48 dithered and resampled to 44/16..My individual uncompressed file sizes macth most other songs from this tour..Why is mine different??

I just went through the wavs for this show http://www.dimeadozen.org/torrents-details.php?id=192732

and through the one I recorded http://www.dimeadozen.org/torrents-details.php?returnto=%2Faccount-cp.php&id=195483

checked the wavs for the same songs and mine are relativley the same size but when i compressed mine to Flac it's way smaller in size 445mb as opposed to 1.5gig

can anyone explain this to me
is the volume on your recording low, or does it have a very narrow stereo image?
Title: Re: help!! can I fix this recording?
Post by: chunga1 on May 07, 2008, 10:01:16 AM
as compaired to the 4-13 show the wav file is a lot smaller volume wise, but the overall volume is not low.