On 7/17/2012 1:29 AM, Dan Dugan wrote:
> I suppose so, because of the hide-bound mentality of academics. But in fact,
> higher-bit-rate ATRAC- or MP3-encoded audio is every bit as good as
> uncompressed WAV files for spectral analysis. Over the many years that I
> recorded with MiniDisc (ATRAC compression), only once did I see an artifact
> in a spectrogram attributable to the compression system, and that was obvious
> and didn't interfere with the interpretation of the graphic. Walter Knapp's
> ATRAC-encoded frog recordings were accepted happily by scientists.
>
> Of course low-rate data compression is crap; but I don't think one should
> devalue a useful process because it can be misused. Nowadays memory and
> storage are much cheaper, and the only situation where one might want to use
> data compression might be very long monitoring, like 24 hour runs.
>
> -Dan
>
I agree with Dan, I only use MP3 encoding due to the long length of
recording sessions ( often all night) and I have never had an issue or
problem using MP3 as a file/recording format. When MP3 is used properly,
there is no degradation of sonograms that I have ever been able to
determine, I've never seen an artifact I would attribute to using MP3 ...
--
--
Mitch Hill
(Sent from HP DV6T)
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