2 May
2010
2 May
'10
12:26 p.m.
On Sat, 2010-05-01 at 22:35 +0300, Chip VanDan wrote:
Hey there again,
I was wondering if anyone out there knew of a voice synthesis program
that could be routed through Jack? Maybe I'm not using the right
terminology, but I want to be able to make the computer say what I
type, but have the output routed through different effects processors
via Jack. I'm losing sleep over this, but I have this choir of robots
in my head that need to get out. All the ones I've found so far work
completely independently and recording them is no less than a superb
pain in the rear end. Perhaps it's time I learn how to program so I
can make my own singing robots.
The way I did it was I dumped the output of festival into wav files, and
then loaded them in specimen. You can feed festival an XML file that
describes the pitch, duration and voicing of a syllable. Example:
http://www.gjcp.net/~gordonjcp/mp3s/robots.mp3
As Julien said, the other option would be to use a vocoder, which
applies a filter shaped like the frequency response of the modulation to
a carrier signal. There is a LADSPA floating about for that, but it's a
bit buggy. I modified it:
http://www.nekosynth.co.uk/browser/wip/vocoder/trunk
It really needs the lower band replaced with a lowpass filter and the
highest band replaced with a highpass filter. It sounds like this
(carrier produced by nekostring):
http://www.gjcp.net/~gordonjcp/mp3s/kelly.mp3
Ideally you want a bright buzzy carrier with lots of harmonics to
filter. Like, uh, a string ensemble...
Gordon MM0YEQ