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July 16th, 2008, 10:51 AM
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#1 |
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Major Player
Join Date: Nov 2006
Location: cape town South-Africa
Posts: 251
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TECHNICAL ADVICE ON CANON XLR 12dB GAIN UP ?
i Have tried the search function on the forum regarding a more technical explanation on when and why one should use (activate the XLR 12Db gain up) function as per Canon XLH1 menu.
I am not sound "Literate" but need more information on the pro en con's of this function. Thank You . |
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July 19th, 2008, 07:03 AM
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#2 |
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Major Player
Join Date: Jun 2004
Location: McLean, VA United States
Posts: 749
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The pro is that use of this option will raise the self noise of the microphone and the camera's preamp noise 12 dB further above the quantizing noise of the camera's A/D converter. This would result in a tiny (1 dB or less) improvement in recorded signal to noise ratio. The con is that the dynamic range of the system (intensity of the loudest signal which can be recorded without distortion) is reduced by 12 db. It's not a good trade. You would use this gain-up with a microphone with very low sensitivity and/or a very weak sound source if you did not have an external pre-amp available.
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July 19th, 2008, 09:48 AM
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#3 |
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Major Player
Join Date: Nov 2006
Location: cape town South-Africa
Posts: 251
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Rock solid answer . Thank You . A.J.
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