[DECtalk] Phoneme Input and /d/

Graham Pearce grahamwp at optusnet.com.au
Wed May 25 05:50:04 EDT 2005


	I only notice what you have described when the phoneme sequence starts with d, but the /d/ phoneme is stronger otherwise. Changing
the stress doesn't help that situation.
Also, eloquence has that problem to some extent.

Regards,
Graham Pearce

Web site: http://pianoman.port5.com
Email: grahamwp at optusnet.com.au
Msn: graham12345 at hotmail.com

-----Original Message-----
From: dectalk-bounces at jaybird.no-ip.info
[mailto:dectalk-bounces at jaybird.no-ip.info]On Behalf Of GUI Access
Sent: Wednesday, 25 May 2005 12:53 PM
To: DECtalk Discussions
Subject: [DECtalk] Phoneme Input and /d/


Calling all DECtalk experts--anyone fluent in DECtalk phoneme input:
Is there an official explanation of why you cannot make DECtalk
pronounce the /d/ phoneme correctly (as in dog, did, do)?  Attempting
to do so using the 4.3 demo results in what sounds like "dho, dhidh,
dhog".  For the /dh/ in this sample, think of the first phoneme of
"those, that, there".

I want to hear what long-time DECtalk users on this list have to say
about this.  I have a theory of why this is a bug.  Later versions of
DECtalk have a phoneme called /dz/.  While this is poorly documented,
it seems to be an allophone of the hard /th/ sound.  I.e.  As in
wiDth (note the capital 'D'; that's the /dz/ phoneme).

My theory is the 4.3 demo has this phoneme and ends up using it
whenever a /d/ is desired.  That would explain the /dh/ sound you get
when attempting to use /d/.

Can anyone confirm/deny/comment?  Ironically a single-byte patch to
the demo ought to fix this problem.  That's a project for a spare
afternoon...

GUI Access

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