Hi all,
I-m using a SM4, it is lighter and smaller than the SM3. Autonomy is a
bit increased, I did not tested it yet. Microphones are much quieter and
the self noise is flat. With SM3 my main issue was the background his that
was high and not flat.
Gianni
2016-02-27 7:53 GMT-08:00 [naturerecordists] <
>:
>
>
> Hi Andrew,
>
> I have used the Wildlife Acoustics Song Meter SM3 extensively. It is
> waterproof and very rugged. The timer is very flexible, you can create an=
y
> schedule you like. It is also big and heavy and the microphones are a
> little noisy. They have a newer model, the SM4 that claims to address tho=
se
> issues, but I have not used it. The Song Meters are expensive. Because of
> that I am building my own using a Pelican case, an Olympus LS-7 recorder
> which has a timer function as well as a sound-activated function, EM172 m=
ic
> capsules, and an Amazon Basics 10,000 mAh USB power bank to power it.
> Unfortunately, The LS-7 cannot shut down when externally powered, the way
> it does when using the timer and internal batteries. So it has to be
> powered-on all the time, which is why I am going for the highest capacity
> power bank I can find that will fit in the case. The battery drain is so
> low when not recording that I think it will still last at least a week in
> the field. I'll let you all know how it works out.
>
> I have used the LS-7 on its own clipped to a tree with a gorilla pod.
> Because the battery life is excellent, and the unit powers down
> automatically between timed recordings, it can be left in the field for
> days or weeks with nothing but the AAA internal batteries. With its
> neoprene sleeve over it, it resists modest moisture, but I have never dar=
ed
> to use it in a downpour. The LS-7 is no longer in production, but they do
> show up on eBay now and then at less than $100. I got mine for $50, and i=
t
> came with the neoprene sleeve, which has been useful. The Olympus DM-620
> ($110) is currently available and very similar to the LS-7. The main
> difference being that the DM-620 only records in 16 bit.
>
> I hope that's useful.
>
> John Crockett
>
>
--
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Universit=E0 degli Studi di Pavia
Via Taramelli 24, 27100 Pavia
http://www.unipv.it/cibra
http://mammiferimarini.unipv.it
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