From: "Steve Simon" <steve@quintile.net>
To: 9front@9front.org
Subject: Re: [9front] games/snes audio patches
Date: Mon, 15 Feb 2021 10:55:09 +0000 [thread overview]
Message-ID: <037731fb386bc31a57fda1d26b66ebc8@quintile.net> (raw)
In-Reply-To: <71E80890743ACBD0D641DECE5D327028@arrow.hsd1.ca.comcast.net>
Re: cheap audio upsampling
nearest neighbour is a crude upconverter, linear is much better,
a halfband filter with a few taps (maybe 8) should be good enough IMHO,
though I am not a game player so you may disagree. You can improve the
resolts of a short halfband filter by feeding it your linerly interpolated
stream.
Don't be tempted to filter only the missing samples as you are likely
to have gain or/and phase ripples due to the rounding errors of your
coeficents. itsbetter to filter everything equally well/badly.
-Steve
next prev parent reply other threads:[~2021-02-15 11:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-15 10:25 Michael Forney
2021-02-15 10:55 ` Steve Simon [this message]
2021-02-17 0:05 ` qwx
2021-02-17 5:31 ` Amavect
2021-02-17 9:10 ` hiro
2021-02-17 9:32 ` Steve Simon
2021-02-17 9:57 ` hiro
2021-02-17 10:24 ` qwx
2021-02-17 10:53 ` hiro
2021-02-21 11:06 ` [9front] " Michael Forney
2021-02-22 0:32 ` qwx
2021-02-22 15:15 ` qwx
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