Jan Stary
2024-Aug-09 13:33 UTC
[opus] [EXT] Re: Re: Opus Tools -- low bitrates, new features in 1.5, "expect-loss"
On Aug 09 11:58:33, u.windl at ukr.de wrote:> > -----Original Message----- > > From: opus <opus-bounces at xiph.org> On Behalf Of Jan Stary > > Sent: Friday, August 9, 2024 12:00 PM > > To: Petr Pa??zek <petrparizek2000 at yahoo.com> > > Cc: opus at xiph.org > > Subject: [EXT] Re: [opus] Re: Opus Tools -- low bitrates, new features in 1.5, > > "expect-loss" > > > > [Windl, Ulrich] > [...] > > > > Also if you look at the samples for (e.g.) a 20kHz sine samples at 44kHz, > > > > the samples hardly resemble a sine wave very mch, and seen reversely: > > > > It's not obvious that it once was a pure sine wave. > > > > On the contrary, a sine wave of 20 kHz > > can be perfectly reconstructed from samples made at 44 kHz. > [Windl, Ulrich] > > But only if you know that it was a constant-amplitude pure sine and if there is no jitter between the sampling and the sine, right?Of course. There is infinitely many real functions going through those isolated points.> That all sounds rather unlikely to me.What does, the Shannon theorem?
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- Opus Tools -- low bitrates, new features in 1.5, "expect-loss"