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Author Topic: Does anyone have any ideas what's causing this crackling sound during applause?  (Read 947 times)

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Offline love2tape

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Just started listening to my pull from a show tonight (AJJ! Awesome live band)- noticed this during one of the applause breaks between songs


http://s000.tinyupload.com/download.php?file_id=00496633603373865894&t=0049663360337386589424068

I was running KM184s (ORTF) + akgc460b/ck22s (Spaced 3') +SBD > Tascamdr680mkii DFC on a stand next to soundboard about 30' back and 7' high. Was close to the crowd but the crackling doesn't sound at all natural to my ears. Crackling occurs between 0:04-0:05

I isolated the different sources and it's mostly on the KM184s (both L + R) but also somewhat on the c460bs. It's odd because it's not heard during all applause breaks, as so:

http://s000.tinyupload.com/index.php?file_id=27428817628030618184

Anyone have any ideas? It's throwing me for a loop- I wasn't clipping and especially am confused by the way that I'm only getting it on the L/R KM184 and rightmost ck22- the left side ck22 doesn't catch it at all, and it's not on the SBD feed. This would lead me to believe it has something to do with the mics close to the crowd (the leftmost mic was closer to the sound guy than the audience) but still- the fact that I'm not hearing it on a different similarly uproarious applause really has me at a total loss. 


edit: hmm, just listened through my laptop's speakers and I can't really hear it there, tried plugging in some earbuds and I can just barely discern it with those- could it be playback device related? I can hear it pretty clearly on my monitor headphones (Sony MDR7506).

e2: just tried a different pair of decent headphones and I can clearly hear it with those as well, so I guess it's relegated to the low end?
« Last Edit: February 03, 2019, 06:06:32 PM by love2tape »

Offline morst

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Sound guy eating a candy bar? Floor vibrations? Did you use shock mounts?
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Offline love2tape

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I was using a shock mount adapted for the mic bar (was thrown in when I bought mics from someone else here :) ) but I probably put more weight on it than is typically ideal..

https://imgur.com/mpW2elA

Is that what applause can sound like if you’re not using proper shock mounts? I was hoping it would be a telltale ‘specific thing’ that someone else has faced before- It definitely wasn’t the sound guy-, I just want to know what my best bet would be in fixing it. There’s no way it could be the dr680mkii, right? I ask because I heard similar crackles during applause when I was recording a band with mics on stage a few months back- it was the same sort of thing where it only occurred during one or two applause breaks early on.

Offline nulldogmas

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Those two files honestly sound pretty similar to me, even on studio headphones. You sure it's not just very slight mic overload?

Offline morst

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It's really minor. If you didn't say to listen for crackling, I might not have noticed it. If it's only during applause, I would not sweat it.
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Offline ilduclo

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I didn’t hear it much, either. Looks like you could step on it pretty easily with most editing software :shrug:

Offline u2_fly_2

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Just do a quick "De-Crackle/De-Noise" in  WavePad Editor / Cool Edit Pro or such.

Not too disturbing noise, heard much worse.

Good luck!
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Sound Professionals Micro-mini microphone power supply with mini 12vdc battery and 24 inch hardwired output cable Soundprofessionals Batterybox >> Olympus Ls-10 Linear Recorder > 4 GB > 24 Bit / 48 Khz  > 24 Bit / 96 Khz

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