Tkrain
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Miracle Needed: Fixing Clipping after recording...
Ok, I've already told my friend who gave me his stems that he's almost certainly going to have to re-record his synth track... he used a slow attack fm, but didn't take into account the loudest volume when he set it up... so you get a beautiful swell which eventually gets clipped at the end of each note... so pretty swell leading to pretty sound with sizzle at the top due to clipping... Is there. I knew I'd have that sizzle the moment I imported the track off his digital recorder to Cakewalk, because the waveform bricks into the track floor and ceiling... i.e. a nice triangle right up till it becomes a brick... Is there any trick out there that would let me pull the clipped info out and preserve the good tone beneath, or is this pretty much a trashed stem? (Expecting the worst, but asking anyways).
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Crg
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 19:04:11
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Run it through Boost 11. I'm not sure if Studio has that plugin. Any limiter should do a decent job. If not try putting a volume-gain envelope on it.
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Tkrain
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 19:18:16
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**** Update **** While asking the question, I remembered that sometimes I get rid of unwanted hum on my guitar with a targetted Eq cut... luckily the synth track is in the 300-2.5k range and the unwanted clipping sizzle sits around 3-4k... My Solution: Sonitus FX, I started with the preset for the PAL 15.625k removal... which is just 1) High Shelving 15.625... I changed that value to 2900 (trial and error, 5 minutes of listening with a loop and moving) and the clipping sizzle is GONE. If my friend would have been playing in a higher octave, this probably would NOT have worked, but he's gonna be floored when he hears his track without the clipping tomorrow.
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Tkrain
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 19:42:32
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Craig, Studio does have Boost11, but since the track was recorded on a Tascam 2488Neo and then transferred into Cakewalk, the clipping sizzle was already in the track.. Boost11 just made it um... worse.
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Crg
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 19:46:52
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Tkrain Craig, Studio does have Boost11, but since the track was recorded on a Tascam 2488Neo and then transferred into Cakewalk, the clipping sizzle was already in the track.. Boost11 just made it um... worse. That is total B.S. dude.
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Stone House Studios
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 20:21:08
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Crg Tkrain Craig, Studio does have Boost11, but since the track was recorded on a Tascam 2488Neo and then transferred into Cakewalk, the clipping sizzle was already in the track.. Boost11 just made it um... worse. That is total B.S. dude. Tkrain is right Craig. If the clip and it's distortion got printed, it's going to be there even if you lower the volume - the EQ won't remove it, but it will mitigate it some if you catch the right frequency. Brian
Core i7-6700@3.40Ghz Windows 10x64 16 GB RAM Sonar Platinum/Studio One PreSonus Studio 192
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Tkrain
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 20:25:57
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I uploaded a sample to Soundcloud, link below. Since the clipping was already rendered in the wav before I ever got it (it was on the Tascam in playback too!) it's already a part of the sound. Boost11 dutifully amplifies it along with everything else. http://soundcloud.com/bri...ack-boost11-vs/s-xbULc
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Linear Phase
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 20:44:48
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The reason boost11 would amplify it is because: Once that audio hits zero, it gets ping-ponged back into itself. If you clip, your distortion saturates that audio. Eq will not remove, or fix this. Certain digital clipping is difficult to hear. Because digital clipping can be very subtle. However, your linked track on sound cloud is crackling.. that must of been some kind of over gained recording.
too many lasers... Sonar = audio editing ninja of a music software!
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John
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 20:45:56
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There is very little you can do except use a program like Sound Forge and draw in an unclipped waveform. Izotope has RX which is supposed to fix clipping but its not cheap. This is a major problem when its in the file. This is why we so often say "keep it out of the red".
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Tkrain
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 20:56:34
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Yeah, I guess I didn't state that clear enough in the opening statement, hehe. He overgained his recording, and that got the crackle (I think I called it more of a sizzle). I've advised him in the future to watch his meters a bit more carefully and not overload his recorder.
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Mystic38
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 21:31:25
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clipping approximates a square wave, so you would get odd harmonics from the fundamental up.. eq should ease some of the corner pain, but cannot eliminate it.. by the time you pull enuf of a 3rd harmonic out you will lose musical info. a plugin with soft saturation..or soft limiting produces even harmonics, predonimantly the 2nd.. so is more musically acceptable less annoying .. some combination of the two would be best bet but tbh, suggest for learning purposes you send him back to rerecord.. with instructions not to break -10dB on the meter.
HPE-580T with i7-950, 8G, 1.5T, ATI6850, Win7/64, Motu 828 III Hybrid, Motu Midi Express, Sonar Platinum, Komplete 9, Ableton Live 9 & Push 2, Melodyne Editor and other stuff, KRK VXT8 Monitors Virus Ti2 Polar, Fantom G6, Yamaha S70XS, Novation Nova, Novation Nova II, Korg MS2000, Waldorf Micro Q, NI Maschine Studio, TC-VoiceLive Rack, 2012 Gibson Les Paul Standard, 2001 Gibson Les Paul DC, 1999 Fender Am Hardtail Strat, Fender Blues Jr, Orange TH30/PPC212, Tak EF360GF, one mic, no talent.
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Tkrain
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/22 22:04:50
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I'm definitely suggesting to him that he re-record the track.. in fact, if I can, I'm going to have him do it right into my DAW instead of on his Tascam. For now, I've got the crackle "out". You can still tell the higher peaks aren't the same quality as the quieter sections, but in the mix it's good enough for his demo.
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Living Room Rocker
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 02:22:32
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Yupe, re-recording is the only/best way to go, As John and Ian have stated, once clipping is recorded/printed into the track, it's there for good.
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M_Glenn_M
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 10:20:29
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Ok all you coders. Now there's a VST plugin that would sell!! The Clipper fixer. Just send me 1% for the idea
Producer Exp x1d Win XP, intel Core2 Duo CPU E4600 @ 2.4 GHz, 2 GHz RAM Nvidia gforce 8500 GT BR800 controller , DR880 drum machine. GR20 guitar synth, Alesis QX25 KRK 6 + 10" sub. Sennheiser HD280pro cans 2 Yamaki acoustics, Korean Strat, 60's Jazzmaster, 60's BF Deluxe Reverb,
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soundsubs
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 12:21:57
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if you cannot re-record for whatever reason.... follow these steps. first, lower the gain on the track by -3dB. do this with audio->process. believe it or not, this will help a little bit. then try running it through some external hardware, like a Tech21 SansAmp (pedal or rack version). miracle worker. Even something with tubes will help it out. re-amping might work too, so try that. i've fixed digital clipping this way many times. the point is: get the recorded part out of the box and into some hardware made to handle high levels nicely. HTH
Sonar Platinum | modular synthesizers galoreWin 10 // Dell Xeon's | RME UFX | Maschine 2.3 | Virus TI | Roland System-1
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Moseph
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 14:13:34
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M_Glenn_M Ok all you coders. Now there's a VST plugin that would sell!! The Clipper fixer. Just send me 1% for the idea Believe it or not, there's something out there in the freeware market that's supposed to do this sort of thing (ReLife): http://www.terrywest.nl/utils.html Haven't had a chance to run it through it's paces yet, but the other stuff from Terry West is pretty solid.
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twisted6s
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 21:27:31
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If you fixed it, it's fixed. Who cares how it was done.
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Guitarhacker
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 21:56:56
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since it is a synth, recording it again should be a snap. Just lower the master levels in the synth control panel and export it, mix it whatever. It;s midi.... not like you have to play it all again.... right?
My website & music: www.herbhartley.com MC4/5/6/X1e.c, on a Custom DAW Focusrite Firewire Saffire Interface BMI/NSAI "Just as the blade chooses the warrior, so too, the song chooses the writer "
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Linear Phase
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 23:34:38
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Snake oil.. is what most of ya'll are peddling, whether you realize it or not. And the intentions are good, but let me ask you this... What do you do with the audio information that is lost? How do you bring it back? To fix digital clipping, you would have to defy physics and bring back that, which does not exist... When a peak goes above zero, "its clipped," as in haircut.. not squashed as in, "hair gel."
too many lasers... Sonar = audio editing ninja of a music software!
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TheSteven
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/23 23:55:02
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Once that audio hits zero, it gets ping-ponged back into itself. Sometimes you can't re-record a part without destroying the value of the project and anything that you can do to improve or salvage the track is a winner. If the clipping isn't too severe you can manually edit the wave forms (unwrap the ping pong) and fix things or at least make them tolerable. I had to do this with a vocal track not that long back where the track clipped in places. For the most part it worked, it was just horribly time consuming. I don't know if that plug-in mentioned earlier would have done anything to fix the track but I would have been happy if it shaved a couple of hours off the project. Edit: The clipping on the track mentioned wasn't a leveling off of the waveform (like a haircut) but more like an inversion (ping-pong) when the levels hit max - so I had something to work with. If it had been flat line clipping (ala the hair cut) the editing wouldn't have worked.
post edited by TheSteven - 2012/07/24 00:11:59
"Time is a great teacher, but unfortunately it kills all its pupils" Loius-Hector Berlioz www.AgitatedState.com MenuMagic - plug-in management powertools! My Tunes
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Tkrain
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/24 02:01:57
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Hehe, Guitarhacker, no, it wasn't midi. He recorded it live into the Tascam off of his keyboard. I played him the fixed track today, and he likes it... i.e. he'd rather not re-record it... oh well, it's his song, hehe. He did agree to get the levels right in future work. LinearPhase, short answer.. you don't bring it back. You can tell something's missing if you listen to the stem by itself... There's enough stuff going on in the rest of the mix, though, that the corrected track works and is obviously way better than the crackle of the clipping.
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SToons
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Re:Miracle Needed: Fixing Clipping after recording...
2012/07/24 02:57:55
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In the future , if you need it, the clip restoration in Audition (formerly Cool Edit and Cool Edit Pro) is quite good. It even works (often, not always) on flat-line clipping. Actually, pretty much all clipping is flat-line, the issue is really how long it flat-lines for.
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