For whose's interested:
http://en.wikipedia.org/wiki/Colors_of_noise
What about:
TECH MD NSE CHR (rx noise character) WHT (white) // PNK (pink) ? ;-)
73'
Paul
PD0PSB
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Thank you Paul - the Wiki entry was new to me and very interesting. It
demonstrated well to a non-expert such as myself the less aggressive nature
of pink noise compared with white. The red/brown noise sounded even better
to my ears but maybe its spectrum is not as suitable for voice
Geoff,
Pink tends to sound most flat to our ears.
That's why it's widely used to calibrate audio equipment.
Red/brown may sound nice as well, but are relatively dark
Funny thing about white is that it keeps that agressive nature in a
restricted bandwidth, because the high flank will grab the
It's important to note that the spectrum of the noise each of us hears is
*not* the spectrum presented by the source.
Everything we hear is filtered by our ears. In the past youngster's ears
were considered rather 'flat' from perhaps 20 Hz up to above 16 kHz.
That changes as we get older and
All true Ron!
Fact remains that by law of physics / psycho-acoustics pink is perceived
by average human ears as flat.
Therfore (I think) it would be nice to start off with a flat noise
character, and adjust that per individual by the RX EQ.
You will also notice that the range of the EQ by ear
Also true Steve!
The K3 is the most silent I've ever experienced.
Pull the antenna out and you're virtually left with nothing.
That's why I think the hiss complaints are caused by its noise
character...
73'
Paul
PD0PSB
One thing I look for is audio stage hiss. Disconnect the antenna, turn
BTW gentlemen, shall we put the lid on?
We've been occupying quite some (pink) bandwidth!
Thanks for the discussion!
Paul
PD0PSB
Also true Steve!
The K3 is the most silent I've ever experienced.
Pull the antenna out and you're virtually left with nothing.
That's why I think the hiss
pd0psb wrote:
-K3 in pink mode sounds round,smooth and balanced out. RX EQ now works
correctly and is able to really shape the sound to many different
flavours.
I've been playing with the K3 RX EQ and watching the audio passband response
on a spectrum analyzer. It's not very
pd0psb wrote:
-K3 in pink mode sounds round,smooth and balanced out. RX EQ now works
correctly and is able to really shape the sound to many different
flavours.
I've been playing and listening some more. I have to admit to at first
being somewhat dismissive of Paul's suggestions, but
Thanks Barry!
It's indeed possible to approach the -3db/oct roll of with the RX EQ, but
it's not very accurate.(I tried this as well) In the audioworld it is very
uncommon the make such drastic correction with EQ to make a source sound
flat
To have an accurate straight slope of -3db/oct (or a
What about:
TECH MD NSE CHR (rx noise character) WHT (white) // PNK (pink) ? ;-)
73'
Paul
PD0PSB
--
View this message in context:
http://n2.nabble.com/K3-RX-audio-on-voice-modes-%3Coh-no-here-we-go-again%3E-tp2699273p2709451.html
Sent from the [K3] mailing list archive at Nabble.com.
IMD LPF and countersloping combined will make K3 the best sounding radio up
to now, trust me.
Let's make music ;-)
73'
Paul
PD0PSB
You're right, Paul -- I skimmed right past the pink idea (oops) and
interpreted the poster's concern as a more common one that customers
have brought up,
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