Creativity and art

December 30, 2008

If Setting The Gain Correctly is So Important, Why Don't Mic Preamplifiers Have Meters?

Filed under: second life, shop — mouse @ 11:35 pm

If Setting The Gain Correctly is So Important, Why Don’t Mic Preamplifiers Have Meters?

When you first learn how to use a mixing console, you will be shown how to set the gain. Your instructor - either in audio school or in the workplace - will emphasize the importance of this and kick your ass every time you get it wrong, until you can’t do anything other than get it right.

Setting the gain correctly optimizes the signal level for further processing in the mixing console. EQ, inserts, auxiliary sends, routing, fading, solo and mixing all depend on having the right signal level for optimum performance, and the gain control is precisely where you set that.

But outboard microphone preamplifiers commonly only have rudimentary metering facilities - perhaps only a single ‘clip’ LED - or no metering at all! So how can you
possibly set the gain correctly?

The answer is that firstly the preamplifier needs to be correctly designed with plenty of output level available. For example, the Manley Labs Mono and Dual Mono microphone preamplifiers can supply up to 30 dBV of output before clipping. That is one hell of a voltage in audio terms - around 30 volts, compared to normal operating миксеры Orion level of around one volt.

It’s probably fair to say that there is no way you are ever going to clip this brute of a preamp, whatever тостеры Moulinex you are driving. So if there is no possibility of clipping, there is no need for metering.

Where пароварки Kenwood you do need metering is in the equipment you are Multimedia Card 256 MB driving with the preamp, probably your recording system. So the procedure for setting the gain with the Manley preamp is to choose the lowest setting of gain, and also set the ‘input attenuate’ control to its lowest setting (the attenuator controls the level of signal going into the preamp копиры Panasonic circuit). Then reduce the amount of attenuation while watching the meter on your recorder. When you are getting a good, healthy signal микроволновые печи Bosch level with a reasonable margin before clipping on your recording, you have the right settings.

If if the level from the mic is too low to reach a good indication on your recorder’s meter, increase the gain as far as necessary but no further.

Setting the attenuator and gain controls in this way will optimize the noise and distortion performance of the preamp.

Now since this is акустические системы Airemex a tube preamp with variable ‘character’ according to акустические системы Advance the холодильники Liebherr gain setting chosen, then once you have mastered setting the gain in the technically correct way, you схема вышивки тигр are free to break the rules…

When you see smoke coming from your recorder, that’s when to stop!

David Mellor, Record-Producer.com

Hair Removal Does It Get Better Than Tweezers and Wax?

There are dvd-плееры TCL several accepted methods of hair removal but many women return to two trusted, tried and true methods when it comes to facial автоколонки Velas hair - tweezing and wax. The reason? Probably one of the радиотелефоны Harvest biggest reasons is a fear of doing some major damage to the face, but there are some other considerations as well. Whether you’ve tried other methods of hair removal or not, the fact remains that MSI MegaBook tweezing and waxing have some real advantages.

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