record output from festival
The way to listen to the sound generated by festival is
$ echo "Hello, world" | festival --tts
or
$ festival --tts hello.txt
where hello.txt is a file containing the text "Hello, world".
How do you record the output?
I've tried
$ echo "Hello, world" | festival --tts > hello.au
$ rec `echo "Hello, world" | festival --tts` hello.au
but it won't work.
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