Subject: | Re: SD 702 compact flash card corruption |
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From: | "Ed Anson" ed_anson |
Date: | Mon May 19, 2008 6:12 pm ((PDT)) |
On May 19, 2008, at 2:45 AM, tempjez wrote: > 1) how do you eliminate the mains hum if it's there ? > 2) any tips for avoiding it ? I might not have been completely clear. I doubt that the hum is from the power supply. Although I'm not sure, it could be that my mic cables pick it up from the long extension cord. But that would be surprising, given that I'm using balanced star quad lines. Perhaps something else is picking it up. I never fully diagnosed the problem. Sometimes changing cables did the trick; other times I moved the extension cord to a different outlet. When I discovered a change that eliminated the hum, I was ready to record. Controlled experiments later failed to reproduce the hum. I don't use AC often enough to motivate much more experimenting. But if someone has a good hypothesis I might be able to check it out. Ed |
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