Support Articles

722, 744T, and 788T Hard Disk Drive Noise

The hard drive on 7-series recorders generates nearly imperceptible noise levels, and it is the only device with any acoustical noise output on the recorders. Unless one presses his or her ear against the unit they will not be able to hear the drive during operation.

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442 Gain Settings with 418S Microphone

Q: I have a Sennheiser MKH418s stereo mic to complement my kit and upon plugging it up to my 442 I have found the level to be very low.

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USBPre with SIA Smaart Software

by Pat Brown of Synergetic Audio Concepts, Inc. The Sound Devices USBPre overcomes many of the shortcomings of internal PC sound cards. Important benefits include balanced inputs, phantom power, analog level controls, meters, bus-powering to eliminate batteries and “wall warts,” and of course high-quality audio inputs.

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Oscillation with Transformer-Balanced Inputs

Condition Depending on several conditions, chiefly the microphone, the transformer-balanced inputs, such as those on the 302, 442, MixPre, MM-1, MP-1, and MP2, can get into an oscillating condition with a microphone that renders the audio unusable. This oscillation is often described as a “motorboating” condition since this low frequency oscillation sounds like a motor […]

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bandwidth of 7-Series Microphnone Preamplifiers

7-Series Preamplifier Bandwidth

w Many test and measurement applications take advantage of the impressive bandwidth offered by the 722 and 744T analog inputs. Linear frequency response, particularly low frequency response, is needed for noise and vibration measurements. Linear high frequency response is useful when slowing audio in post production.

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Audio Level Metering with Sound Devices Field Mixers

This article moves beyond the basics to specifically discuss metering with Sound Devices 442, MixPre, and MP-2 portable products. A good general understanding of audio level metering is helpful before understanding the nuances of Sound Devices meters.

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