HQSYNTH
NAME
HQsynth - High quality formant synthesis
SYNOPSIS
HQsynth
(-i item) (-c) (-r|-e) file
DESCRIPTION
HQsynth
performs excitation-synchronous formant synthesis from a set of formant
estimates using an LPC synthesis model using the procedure of Melvyn Hunt.
Input should be an FM item produced by
HQanal
(originally), and a residual waveform ("-r" option) if required.
A prototype voiced excitation waveform may be suppied ("-e" option),
preferably generated by
HQrsav.
Output is
a speech waveform. De-emphasis is applied to the voiced regions only.
Options
and their meanings are:
-I
Identify program and version number.
-i item
Select input item number.
-c
Use LPC coefficients as input
instead of formant estimates.
-r
Use residual waveform for excitation, rather than a synthetic excitation
waveform.
-e
Use a prototype excitation waveform included in file (LX item of 200 samples)
instead of default pulse.
INPUT ITEMS
12.xx
HQanal analysed formant estimates.
2.xx
Optional residual waveform (matched to output waveform).
2.xx
Optional prototype excitation waveform (200 samples @ 10kHz).
14.xx
Optional LPC coefficients.
OUTPUT ITEMS
1
High Quality formant resynthesized speech.
VERSION/AUTHOR
1.2 - Mark Huckvale (from
fmconv
and
syn
by Lynn Whitaker)
SEE ALSO
"Generation of controlled speech stimuli by pitch-synchronous LPC analysis of
natural utterances", M.J. Hunt & C.E. Harvenberg, 12th Intl. Congress on Acoustics,
Toronto Canada, 1986.
BUGS
HQsynth
is not compatible with formant items produced by
rootlpc
or from ILS. Analysis must be performed by
HQanal.
Wed Jul 17 22:31:36 2013