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mcm Smart Kitteh
Joined: 10 Dec 2004 Posts: 2600 Location: w. MA, USA
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Posted: Wed Jun 15, 2005 7:38 am Post subject: Electric blips |
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Yesterday I did a quality-of-read-not-an-issue test to see how long it took me to do a 5-page script. The file is a 17-minute .aif (80 M, 44100 sample rate, 16 bit, no compression. It has several electrical spikes in it and I don't know where the heck they came from.
If anybody could look at the file for me and tell me what they think caused these blips and what I should do about it I would be very appreciative. I put a 1 MB mp3 sample up; it has 3 of these blips in it. Looking at the file may be as informative as listening (better to look while listening, because then you can put your cursor right at the spikes rather than having to listen to me drone on in a non-VO type voice about Medicare reform)
http://www.mcmvoices.com/sample.htm
Rejoicing in advance for your help--
Mary |
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Andy Guest
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Posted: Wed Jun 15, 2005 7:51 am Post subject: |
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You're using Adobe Audition 1.5, right? I use the earlier version, Cool Edit Pro. Sometimes I run into the same problem. For me, I discovered it was an issue of available RAM on the computer. The less available RAM the more clicks and skips I'd get on longer recordings. Try to free up as much RAM as you can before you record. Disable as many programs on start-up as possible, shut down other programs running in the background. Some anti-virus applications, like Norton, eat up a huge amount of memory.
It's actually ideal to have a second hard drive dedicated to your recording software. The more disk space available the better, as audio files are huge, as you know. |
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kgenus Seriously Devoted
Joined: 01 Dec 2004 Posts: 889 Location: Greater NYC Area
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Posted: Wed Jun 15, 2005 7:53 am Post subject: |
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My initial thoughts are always bad cables, have you swapped out the XLR cable to your mic? What kind of signal chain are you using these days? Do you hear this occur on all of your longer recordings? Also does the floor have heavy carpet? Is everything grounded?
-- I just read Andy's post --
If the computer's bus is choking, you're certainly going to create clicks and pops, even if you've got multiple drives. _________________ Genus |
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mcm Smart Kitteh
Joined: 10 Dec 2004 Posts: 2600 Location: w. MA, USA
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Posted: Wed Jun 15, 2005 8:24 am Post subject: |
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I think I did have a bunch of other programs open at the time, and McAfee is often busy trying to get my attention. I will make sure to disable it for long reads and close everything else. My machine has 1 GB of RAM.
This has only happened once before; on that occasion the file was just 3 minutes, 15 MB.
The floor is cement, with some cotton throw rugs on it.
It really is time to get another hard drive for recording. Sigh.
My mic cable only cost $29 for a 15 footer, Kevin, so that could be the culprit :wink:
Many thanks for these suggestions. You guys are swell.
MCM |
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SoundsGreat-Elaine Singer King's Row
Joined: 30 Dec 2004 Posts: 1055 Location: Toronto, Canada
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Posted: Wed Jun 15, 2005 8:48 am Post subject: |
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Mary, make sure you are not connected to the internet before you disable your McAfee. _________________ Elaine
The Youthful Mature Voice (Emeritus)
Senectitude is not for the faint of heart. |
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mcm Smart Kitteh
Joined: 10 Dec 2004 Posts: 2600 Location: w. MA, USA
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Posted: Sat Jul 02, 2005 7:40 pm Post subject: |
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Found the source of the blips: they were not in the original recording. I had decided to apply Adobe's Auto Click/Pop Eliminator and afterwards, blips. Un-do the Auto Click/Pop and they go away. Weird feature. |
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