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7. Re: artifact in spectrogram created using Raven

Subject: 7. Re: artifact in spectrogram created using Raven
From: "Klas Strandberg" klasstrandberg
Date: Wed Jul 18, 2012 10:10 am ((PDT))
Hi Gabriel,

I=B4m sorry that I jumped on you! I had to start somewhere. I totally
agree with the fact that MP3 is poorer than wav. But for Petes sake -
HOW poor??

Is there any setting that you can do on a PMD-680 that cuts
everything over 6k and creates clearly audible reverb and echo??

Klas.


At 18:11 2012-07-18, you wrote:
>--- In  Klas Strandberg <> wro=
te:
> >
> > Sorry, but I have to straighten this thread out for myself:
> >
> > Gabriel says: Even though people have said these are bad recordings,
> > and I said you will run into trouble in peer review later for
> using MP3.......
> >
> > Are you saying that Lauras files sound the way they do because it's MP3=
??
>
>Well, I guess at least three issues emerged in the same thread.
>
>1) What is the cause of the artifacts in Laura's recording? My
>impression was that some knowledgeable people thought it could be
>low bit rate MP3 alone. Others have put forward different
>explanations. Of course it will be impossible to say for sure on the
>basis of the sound file alone. This requires testing the equipment
>with different settings, and comparing it to reference equipment.
>
>2) I said, perhaps a bit harshly, that MP3 should not be used for
>scientific recordings (also not if it is not the cause of Laura's
>problem). This was perhaps too strict, as Dan correctly pointed out,
>but in general MP3 is a bad choice. Science is expensive in terms of
>money and time. People will be grateful later if you spend a bit of
>money on an extra memory card, and used PCM/flac for recording.
>
>3) For nonscientific purposes, what bit rates are acceptable for
>good quality? It is not surprising that the opinions on this vary :-)
>
>Best, Gabriel
>
>
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
>
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>
>
>
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