Hi Abhijit,
Great recording of that cicada! We have one here in Australia called
a Razor Grinder (Henicopsaltria eydouxii) that is a little bit
similar in the way that the sound ebbs away then starts up again.
And is similarly deafening.
Vicki
On 16/08/2011, at 9:10 PM, Abhijit Menon-Sen wrote:
> Hi.
>
> I don't know anything about insects, but the sound of Cicadas is
> inescapable on a visit to the Kumaon hills in Uttarakhand, India.
> Here's a recording of one singing in the evening on a recent trip:
>
> http://toroid.org/ams/snd/cicada.mp3
>
> Equipment: Olympus LS-11 with inbuilt microphones (LOW/10)
> Processing: Fade-in/out, compression, equalisation (audacity)
>
> The cicada is loud enough that anything I did in audacity probably
> makes
> little difference, but I would appreciate comments about the
> recording.
> Does it sound strange in some way I don't recognise? I used
> compression
> because some people said my last recording was "not loud enough".
> When I
> did that, I could hear a dog barking far away down the valley, so I
> used
> the equaliser to de-emphasise everything under the cicada's ~2KHz
> signal
> (which also got rid of a tiny bit of wind noise).
>
> Later, it struck me that it may have been better to equalise first and
> compress later (if at all; I'm wondering if it's better to say "sorry,
> I can't make it louder" to people who ask).
>
> Even later (just now, while writing this), I found the Effects-
> >Plugins
> submenu in Audacity, and perhaps I should have used a high-pass filter
> instead of equalisation. Not sure.
>
> I didn't see the cicada, of course, but it was in a tree growing on
> the
> slope below the road, on whose edge I was standing. I'd guess it
> was no
> more than three metres away. (If anyone can guess what species it
> is, I
> would be happy to know. I heard hundreds of them.)
>
> -- ams
>
>
> ------------------------------------
>
> "While a picture is worth a thousand words, a
> sound is worth a thousand pictures." R. Murray Schafer via Bernie
> Krause.
>
> Yahoo! Groups Links
>
>
>
|