Displaying 2 results from an estimated 2 matches for "snrs".
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cnrs
2005 Sep 20
5
Neat way of using R for pivoting?
...);
mu <- as.list(by(t$snr, cnfac, mean));
tvar <- as.list(by(t$snr, cnfac, var));
t <- list(mu=mu, var=tvar);
}
vn <- read.table('vn.csv', sep=',');
vn_stats <- get_stats(vn);
vsn <- read.table('vsn.csv', sep=',');
vsn_stats <- get_stats(vsn);
snrs <- as.numeric(names(vn_stats$mu))
matplot(snrs, cbind(vn_stats$mu, vsn_stats$mu));
windows();
matplot(snrs, cbind(vn_stats$var, vsn_stats$var));
******* END SNIPPET *******
Appreciate any helpful hints from the pros.
Cheers!
p.s. We've been having rather a good time around the office r...
2004 Jun 08
0
Re: [vorbis] Vorbis determined to be as good as MPC at
...n case the energy drops as
an effect of the quantization the samples which caused the
heaviest energy losses are altered thus increasing energy
and approximating the original level.
the NN sheme in 1.0.1 just increases energy in case it
dropped. usually quantization results in an energy boost (for
SNRs above 2 dB). but this situation is not handled
by the current NN sheme because this effect was unexpected.
Ghis!
Sebastian
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