Background fan noise

[methuenbill]

I have a wedding in which you can haer the hiss of fans throughout the whole mass. Any way to cut it down?

[TimKennelly]

Turn off the fans would be the most effective way, but you probably mean in post, eh?

Good luck.

If you have the audio filter pack you can play around with high end noise filters and such.

Taking the audio outside of the Cassie world into the PC world you have much more control, but my personal experience has always been less than satisfactory.

Removing the frequencies involved makes the overall audio artificial and worse.

Although I have never been really satisfied with the results I have settled on compromising by just de-emphasizing the hiss.

Many times after playing around with the audio I ended up deciding it was better to just live with it.

Always best to notice it and eliminate it at the source prior to recording if that is at all practical.

[CKNewman]

Can you more accurately describe the sound? Were the fans actually blowing on any of the mics or are you hearing motor noise? Was it central air conditioning or floor standing fans with an airplane propeller mounted on it?

Another Cassie user had a question on cleaning up sound earlier this week. My reply included the following:

The Filter tools would allow you to filter out frequencies that are above or below the speaker's voice. You could try using a High Pass Filter where you cut off frequencies below a certain level and only let the higher ones pass. Try the Low Pass filter to cut out the higher frequencies if they are causing problems.

On the PC side there are programs that you "teach" to recognize sounds and frequencies that you want filtered out. You would use a section of the audio where the noise was present but the speaker was not talking. (If you were working with a phonograph record you would use the grooves between the songs.) I'm not sure what Premier has but I believe there's a routine in the free program Audacity to do this. I've read about these programs but have never tried them.

Here's one you might want to look at:
http://www.tracertek.com/ecom-catshow/n ... tware.html

[BobFoster]

Sony's Sound Forge has a filter "Noise Reduction" That allows you to sample a continuous nose during a quiet period of about a second and then remove that sound for the entire program pretty fast. You can adjust the amount of filtering, hear just the removed portions and also make other adjustments to improve the results. It works really well.

[methuenbill]

Fan blowing in the background. Is there a audio program for the 4000?

[CKNewman]

The filters I outlined in my previous post are a part of the Casablanca Audio Effects Pack. I'm not sure how well they would work on the fan noise compared with the PC programs that were mentioned. At this time the only audio add-on for Casablanca editors is the Audio Effects Pack. This came out years ago for generation 2 machines - I'm not sure if it has been ported over to generation 3 machines.

[sparks0335]

I had some background noise at an outside wedding. I have audio filter pack on my Renommee but what worked best for me was a 10 Band Equalizer
hooked up between my camcorder and the Renommee.

[MichaelD]

Audio FX Pack is available for S series (like most software now) but we also have a 10 Channel Equaliser (sorry, Equalizer) built in for audio in the Audio Recording Edit, Special menu.
You'd need to "copy" (scene sample) the audio clip first but then you can 'check' the pre-listen button then you can launch the program and then close it when you've made some changes to have the first 10 seconds or so previewed, go back change it a bit more and then close to listen to what you have achieved again.