naturerecordists
[Top] [All Lists]

Re: Savannah Sparrow

Subject: Re: Savannah Sparrow
From:
Date: Tue, 21 Jun 2005 11:23:01 +0200 (MEST)
Hi Martyn,

I also looked at your 722 v pmd-670.wav file. Could it be that the PMD 670
track has been compressed during an intermediate processing stage (e.g. by
MP3)? The sharp and alternating low-pass filter effects above 12 kHz would
suggest that. In case there was any kind compression, this arrangement
wouldn't be a fair test between the two devices, because the compression
would also rise the noise floor below 12 kHz.

Regards,
Raimund

>I see that Gianni, I don't understand why? Both machines were recording in
>WAV. I will see what happens later when I use the Tascam but in the
>meantime, you can certainly here the hiss from the PMD-670..

>Martyn

...

>Hi Martyn,
>in your file 722 vs 670, the Marantz recording is sharply limited
>to 12800 Hz. Why ? How you did the recording ?
>
>Gianni

...

>OK, this is a 30 second WAV file. The right channel is the Marantz PMD-670
>recorded in WAV; the left channel is the Sound Devices 722 Recorded in >
>WAV.
>Both recorders were set at the same recording level using a Telinga Stereo
>DAT mic plugged the way Klas wanted them. Notice how considerably quiet
>the
>left channel is to the loudness of the
Right.
>http://www.naturesound.org/Sound%20Files/Noise%20Filtering/722%20v%20pmd->=
70.WAV
>
>I will do the Tascam test later.
>
>Martyn

--
Weitersagen: GMX DSL-Flatrates mit Tempo-Garantie!
Ab 4,99 Euro/Monat: http://www.gmx.net/de/go/dsl

[Non-text portions of this message have been removed]



________________________________________________________________________
________________________________________________________________________

<Prev in Thread] Current Thread [Next in Thread>
  • Re: Savannah Sparrow, recordingbird <=
Admin

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