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Re: A tropical orchard in spring for your rating please

Subject: Re: A tropical orchard in spring for your rating please
From: madl74
Date: Sat Jun 15, 2013 4:00 am ((PDT))
> Here is a recording of a bird-rich orchard in Calcutta, India, recorded e=
arlier in spring time. You might call it a dawn chorus of sorts. It wasn't =
really dawn but early enough when all the birds were vocal.
> This is my first post here and I shall be delighted if the experts here r=
ate this please. Recorded with an Edirol R-09HR with its built-in microphon=


It is a great sound and it took me right back to my time in India where I
was brought up and where I visited many times as a TV Sound Recordist.

A few boring practical notes. Built-in mics tend to be disappointing and
most of us use external mics on leads. This means that you can listen to th=
recorder on headphones without introducing your own noises. You will almost=

always find that external mics have a better quality and many discussions o=
this list are about various mic types, but they don't have to be expensive=

to give an improvement on built-in mics.

With outdoor recording and its various background noises, I find 16 bit
recording is better quality than any incoming sound. I use fixed mics on
long cables and make long recordings so I can select the interesting bits
later. The alternative is to listen with your finger on the red button, but=

you can miss the start of good stuff. Long recordings mean recording at
Message: 44.
Subject: 1K samples per second and recording MP3 at maximum quality, but the
recordings still have a much wider range than the incoming sound.

Recording at 44.1K means I don't have to convert to be compatible with CD's=
I've recorded at 24 bits and compared it with 16 bits and couldn't find
anything signigificant in the last 8 bits.

16 bits gives you a signal/noise ratio of about 78dBs and you are lucky to=

get a soundscape with better than 40dBs s/n ratio, so 78dBs is plenty good=

enough even if you record to about -12dB to accommodate unexpected peaks.

Please can we hear more Indian birds. To get individual bird calls you will=

have to get closer, but that is fieldcraft. There is a lot of technical
stuff on this list, including my stuff above, but the real skill is finding=

your nature sounds and grabbing them.

David Brinicombe

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