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Microphones

The microphone is your first point of contact with the sound, and it is a false economy to skimp on this vital part of the system. You will usually get better results with a good microphone and mediocre recorder than with a mediocre mic and a good recorder. Microphones tend to last a long time and are a mature technology, so your investment will not become obsolete or wear out quickly. WSRS members will sometimes find used mics for sale in the classifieds or at meetings. If you have very limited funds and have a modicum of skill with a soldering iron you can consider making this DIY microphone.

With these models which a beginner can get reasonable results without spending a lot of money. For the application of someone recording birds at a distance, you first need to choose between a shotgun mic and parabolic dish. The dish gives you the greatest range, but is bulky and awkward to use in the field. The shotgun mic is more handy in the field, and is probably the first choice for a beginner.

All of these are self-powered, i.e. they have an internal battery and are not powered from the recorder via the microphone cable. (You can read more about the powering options for microphones - self-powering is the right choice for recorder). They can all be used with a solid state recorder and headphones to put together a complete recording system, you need nothing more. They are mono mics, which is common when recording single species which is the approach most newcomers to bird recording tend to start with.

 Shotgun Microphones

Note that if your aim is to use your mic with a parabolic dish, then most shotgun mics are not suitable, as they will only receive sound from part of the dish. You would need another microphone to use with the dish. However, the ATR55 can be used with a dish because if offers a choice of shotgun and cardioid responses. The ME66 is not suited to a dish, but the ME62 from the series can be used with the same K6 powering module which you need for the ME66.

audio-technica ATR6550

atr6550 1 sq

The lowest cost mic I have tried with any success is the ATR6550, a mono microphone designed for use with video cameras. There are a number of no-name far-Eastern clones of this model also with the "telemic" label. This is powered by a 1.5V AA battery, and the power switch selects between a cardioid response and somewhat more directional response[1]. This choice is a useful option if you also wish to use the mic in a parabolic dish, for which the cardioid response is better suited. Because of its internal construction, this mic does tend to suffer more than the others from handling noise, so you will find it easier to use this from a fixed support such as a tripod, which reduces handling noise for any microphone.

This mic typically retails at £70Sennheiser MKE 400 MKE 400 Compact Video 1405610463000 534023

Sennheiser MKE300

Sennheiser MKE400

Another mono microphone designed for use with video cameras. This is powered by a 1.5V LR44 button cell and is quite compact though more directional than the ATR6550. It is much less susceptible to handling noise

This mic typically retails at £130[2]

Sennheiser ME66

me66

Sennheiser ME66

This is part of the K6 modular system, and you need the Sennheiser K6 powering module to make this do anything, which is something to watch when pricing this up. It is an excellent choice, delivering a very good sensitivity and low self-noise. It is a common microphone used by birdsong researchers. Many WSRS members use mics from the K6 series, including this one.

With the K6 powering module this mic tends to retail at about £340[2]. For use with a minidisc recorder you should make sure you get the K6 and not the K6P powering module, as minidisc recorders do not provide 48V phantom power.

rcbstereoparabol

Parabolic dish

The parabolic dish is a system - comprising a microphone and a sound reflecting parabolic dish. The dish needs to be at least 50cm in diameter, for practical use. The microphone needs to pick up sounds from the whole surface of the dish, which is why using a very directional mic like a shotgun mic is not recommended. A cardioid microphone, which picks up sound mainly from the front, is often recommended, though you can also use an omni directional microphone. The mic is mounted pointing towards the dish and away from the sound source, and the dish is aimed at the sound source.

Sourcing the dish is a problem, and this is where joining the WSRS can really help as members often have spare reflectors available secondhand, and the WSRS has in the past organised the manufacture of parabolic reflectors. You can purchase parabolic dishes commercially, otherwise you will need to use some ingenuity - there is nothing wrong in using a (solid) centre-fed satellite dish but you will find it heavy to use in the field!!! Most commercial dishes are made of a type of plastic to make the weight manageable.

Telinga manufacture a range of parabolic microphone systems commercially, although the cost of over £800 is a bit more than many people wish to spend at the beginning.

There are, of course, better microphones than those listed here and you can spend a lot more. Compare a more expensive mic with a cheaper one and usually the difference is that the sound is clearer, and often you will get a lower noise level. However, with any of these you will be able to get out in the field and make recordings, which is the best way to hone your skills and increase your appreciation of the the sounds of the natural world.

Unless you limit yourself to recording on windless days you will also need some form of wind protection which I deal with next. You will have difficulty recording outdoors using only the foam windshield provided by the mic manufacturer.

RM

  1. audio-technica ATR6550
  2. Sennheiser MKE400
  3. Sennheiser ME66

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