Subject:
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Re: Text to Speech capability on the RCX
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 2 Feb 2001 22:54:07 GMT
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Viewed:
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630 times
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hi Ram,
I wish to do the same.
I was looking for the code used for programs like "PC-speaker", but I
cant
find the source code.
So now I'm thinking of the following:
Normal sampling gives much to large files for the RCX.
With NQC or RCXcc you can play tones with a minimum length of 10 msec.
Why not divide the speech into parts of say 100 msec, determine what the
power is and what the frequency is (i.e. zero-crossing).
Then we're going to play tones, with the measured frequency or even with
a
constant frequency, and the amplitude we are going to modulate as the
puls
width.
So full volume is
playtone(1000,10)
wait(0)
and minimal amplitude sound is
playtone(1000,1)
wait(9)
and half volume is
playtone(1000,5)
wait(5)
Now I'm looking for a program that can translate a wav-file into the
suggested puls-widths.
Stef Mientki
Ram Meenakshisundaram wrote:
> Hi,
>
> A bit of a silly question, but does the RCX have a dedicated speaker or
> can it only play tones? I want to see if I can create a TTS engine
> that handles a very small number of phonemes (spelled correctly??)
> using LegOS or NQC. Thanks.
>
> Ram
>
> --
>
> ,,,,
> /'^'\
> ( o o )
> -oOOO--(_)--OOOo-------------------------------------
> | Ram Meenakshisundaram
> | Senior Software Engineer
> | OpenLink Financial Inc
> | .oooO Phone: (516) 227-6600 x267
> | ( ) Oooo. Email: rmeenaks@olf.com
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>
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Message has 2 Replies:
 | | Re: Text to Speech capability on the RCX
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| I'm also trying to play a wav with the RCX, and I have found this information. The pages explain how to play a tone and a PCM wave with 1 bit speaker, like the famous PC-speaker, it's great. (2 URLs) The problem here is to find the time of full (...) (24 years ago, 5-Feb-01, to lugnet.robotics)
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Message is in Reply To:
| | Text to Speech capability on the RCX
|
| Hi, A bit of a silly question, but does the RCX have a dedicated speaker or can it only play tones? I want to see if I can create a TTS engine that handles a very small number of phonemes (spelled correctly??) using LegOS or NQC. Thanks. Ram -- ,,,, (...) (25 years ago, 21-Dec-99, to lugnet.robotics)
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