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                                10/30 - [video] Demo Roland TD-20SX
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  #1  
Old 04-23-2006
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antispatula antispatula is offline
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Do you think this matters?

Ok, so I've FINALLY got a firm grip on calibration. I have been able to succesfully calibrate the input and VU meter levels. I needed to have an oscillator so I could send both a -18 and -8 dBm 1 kHz tone. I downloaded one, and it didn't say which dB it sent out (dbm, dbv, dbu?) so I just hooked it up to a voltmeter and messed around with the output amplitude until I got the the right reading on the voltmeter, for both -18 and -8 dbm. Due to the simplicity of the free osc, I couldn't adjust the output amplitude as much as I wanted, but was able to get -18.2 instead of -18 dBm, and -7.77 instead of
-8 dBm. So for each, I was .2 or .3 dBm off.....I calibrated the inputs and VU meters to these slightly off tones. Do you think this is a big deal? is .3 dBm difference really going to change anything? Thanks!
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Old 04-24-2006
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Old 04-24-2006
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man....I know you are new to the whole process, but all I can say is "RAR"........Relax And Record!!! Analog doesnt have to be/shouldnt be exact to sound great!
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Old 04-24-2006
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its difficult trying to teach yourself something at first. there are a million questions...once you get through you'll be an expert!
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Old 04-24-2006
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there are a million questions...once you get through you'll be an expert!
.. and antispatula is on the way to become one!

Last edited by cjacek; 04-24-2006 at 14:48..
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Old 04-24-2006
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Quote:
Originally Posted by antispatula
I couldn't adjust the output amplitude as much as I wanted, but was able to get -18.2 instead of -18 dBm, and -7.77 instead of
-8 dBm. So for each, I was .2 or .3 dBm off.....I calibrated the inputs and VU meters to these slightly off tones. Do you think this is a big deal? is .3 dBm difference really going to change anything? Thanks!
Nope, doesn't matter at all... consider that you nailed it.
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Old 04-24-2006
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Originally Posted by cjacek
.. and antispatula is on the way to become one!

hehe hardly, but thanks! I am really getting a hold on it though, thanks everyone who helped!
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Old 04-24-2006
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Nope, doesn't matter at all... consider that you nailed it.
antispatula is definitely within tolerance!
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