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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. T

    new tiny Zoom F3 recorder

    The rest is taken care of by the input of the recorder. In the case of the Zoom F2, and almost all recent recorders, this is well below the self-noise of the microphone. EIN A-weighted is the ISO standard for measuring microphone self-noise. If the recorder is reasonably impedance-matched and...
  2. T

    new tiny Zoom F3 recorder

    My point is that the low-impedance driver stage also introduces noise and on a short cable run such as is used in portable recordings, it is simply not required. The capacitance and resistance is multiplied by the cable length. A 1m cable run really does not need a low-impedance driver stage and...
  3. T

    new tiny Zoom F3 recorder

    For those only using a single microphone to record, the Zoom F2 looks like far better value. It is also 32 bit float, tiny and has plug-in power for the likes of an AOM-5024L capsule (9.7mm dia, EIN 14dBA and sensitivity -24dBV or 63.1 mV @1Pa). XLR mics are usually compromised by their low...
  4. T

    new tiny Zoom F3 recorder

    '32 bit float' is a bit of marketing magic that covers what is actually going on. There are two pre-amps per channel with fully automated levels set around 18dB apart, annotating every single sample with the ALC value applied. Hence no gain control is required (they are both automatic) and in...
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