[Top] [All Lists]

Re: Recorded with mkh 30/30 and Marantz 661 is this cliping.

Subject: Re: Recorded with mkh 30/30 and Marantz 661 is this cliping.
From: "freitojos" freitojos
Date: Thu Jun 27, 2013 6:45 am ((PDT))
Here is another with a strange call after 10 minutes.
Same place today.

--- In   wrote:
> It is interesting how you get different aspects pointed out from differen=
> listeners.
> What I heard was enharmonic distortion (but not a lot) and I confirmed th=
> by listening at quarter speed and 1/16 speed, with audiograms and with an=
> without frequency filtering. Enharmonic distortion is at frequencies not=

> related to the original signal and is much more audible at low levels tha=
> harmonic distortion. On a single note, several percent of harmonic
> distortion is often inaudible. What we complain about is enharmonic
> distortion when less than 1% can be unpleasant.
> The peak distortion near the end is slight and in practice inaudible as i=
> appears to be less than 1dB overload. When this happened, (before or afte=
> digitisation) I don't know, but with many recorders, levels like this
> trigger an automatic volume control giving a "hole" after the peak which =
> a much more audible defect than a simple peak distortion.
> The answer, as ever, is to record low. I would advise aiming at peaks com=
> in at -10dB or -12dB below 100%. We are long past the era when you have t=
> cram everything on as high as possible to overcome tape hiss, but the hab=
> sometimes lingers on. Plenty of headroom is essential with nature recordi=
> where peaks cannot be predicted. Out of doors, natural noise will almost=

> always swamp out any digital noise you will hear after lifting the playba=
> level to peak to -3dB or -6dB.
> Note about Blumlein recording (and ORTF etc). Any rig using spaced mics w=
> introduce phase shifts between left and right. This sometimes enhances th=
> stereo effect on headphones, but with open speakers, the image you hear i=
> very dependant on the room acoustics. The is why most studio mixes use le=
> stereo using pan pots rather than phase stereo to give a more predictable=

> stereo image.
> David Brinicombe

<Prev in Thread] Current Thread [Next in Thread>

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU