[mary-users] Accent vs. Stress

[Thorsten Westermann]

Hello again!

Ingmar, could you please tell what and where this "certain bug fix" is?
I don't find it in the release notes of 4.1.0

Thank you!

MfG,
Westermann

-------- Original-Nachricht --------
> Datum: Tue, 12 Oct 2010 10:42:43 +0200
> Von: Ingmar Steiner <ingmar.steiner at dfki.de>
> An: Thorsten Westermann <thorstenwestermann at gmx.net>
> CC: mary-users <mary-users at dfki.de>
> Betreff: Re: [mary-users] Accent vs. Stress

> Dear Thorsten,
> 
> just to put my $0.02 in, in the context of how MARY uses stress and
> accent, the following may grant additional insight:
> 
> Stress is determined at the lexical level (in PHONEMES), and works as a
> ternary attribute of syllables; every syllable can have (a) primary, (b)
> secondary, or (c) no stress, with no more than two stresses per word. Since
> stressed syllables are much less likely to be reduced (i.e. shortened, with
> centralized vowels) this plays an important role in determining which units
> to select during synthesis.
> 
> Stressed syllables are also the "anchors" for accents, which are predicted
> in INTONATION; accents cannot normally fall on unstressed syllables. In
> Mary, accents are described by ToBI labels ("L+H*" and so on) and refer
> mainly to F0 targets and contours. So stress influences accent (and this is why
> a certain bugfix in 4.1 should have improved these things considerably),
> and both are important symbolic features for acoustic parameter prediction
> and unit selection (both directly, and indirectly, through acoustically
> predicted continuous features).
> 
> Best wishes,
> 
> /**
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> 
> On 11 Oct 2010, at 11:56, Thorsten Westermann wrote:
> 
> > Hi Nickolay,
> > 
> > okay, I think I have understood it:
> > 
> > 1)
> > The stress is predefined, it's always the same. Or it should be, as long
> as the person doesn't speak a dialect or so.
> > 
> > 2)
> > But the accent can be totally different. 
> > Example about accents for the word "eyes":
> > 
> > "You got EYES!" (="See for yourself, don't ask me!")
> > "You got EYES!" (=Wonderful eyes!)
> > "You GOT eyes!" (=You are not blind!)
> > "You got eyes..." (=They are still there, stop bothering)
> > Something like that.
> > 
> > Did I understand correctly?
> > 
> > When this is correct, how can Mary make assumptions about how a word is
> accented? I see this byte feature, e. g. "Accented_Syls_From_Phrase_Start".
> > 
> > Does Mary look at the pitch or loudness or similiar, or is it a
> rule-based assumption that a unit is accented and in which way?
> > 
> > MfG,
> > Westermann
> > 
> > -------- Original-Nachricht --------
> >> Datum: Mon, 11 Oct 2010 09:37:28 +0400
> >> Von: "Nickolay V. Shmyrev" <nshmyrev at nexiwave.com>
> >> An: Thorsten Westermann <thorstenwestermann at gmx.net>
> >> CC: Christopher Bader <cb at kratylos.com>, mary-users at dfki.de
> >> Betreff: Re: [mary-users] Accent vs. Stress
> > 
> >> 2010/10/11, Thorsten Westermann <thorstenwestermann at gmx.net>:
> >>> Hello!
> >>> 
> >>> Thanks for your reply.
> >>> I was wondering why we have both stress and accent features when they
> >> are
> >>> basically the same, and just didn't come to any conclusion.
> >>> 
> >> 
> >> They are not the same. Traditionally in Festival "stress" is a lexical
> >> stress, something that is specified by lexicon. Accent is intonational
> >> feature, it depends on phrase. For example accent could be present
> >> only in content words. Accent could be derived from presence of
> >> intonation events for example from ToBI event in the syllable. Or it
> >> can be predicted independently and be the feature for ToBI event
> >> prediction.
> > 
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