First of all (I think David had already mentioned):
At the moment, Nyquist within Audacity has no capability to write
external files, so manipulating (reading or writing) pre-existent
text files is not possible once Nyquist has started. The only
possibility is to feed your data from inside the plugin text file
into Nyquist or load it via the 'init.lsp' file (from within the
Audacity 'nyquist' directory).
With Roger's (original) Nyquist version, text processing (reading,
writing and manipulating text files) is no problem.
But I think that there is a more serious problem. All Nyquist functions
beside 's-plot', what just simply writes a text file with the amplitude
values of all samples, which are capable to turn Audio events or
amplitude values into numerical Lisp data for analysis and computation
(i.e. the Nyquist 'peak' and 'snd-fetch' functions) create a huge amount
of Lisp backtracking data, stored inside the computer's memory.
With my 768Mb memory machine at home this means, that with audio tracks
of more than approx. two minutes length nyquist reaches the computer's
memory limits and crashes. As I work in professional audio/video
broadcast environment (where a file of only two minutes length is
ridiculous short) working with Nyquist as an analysis tool AFAIK is
If anybody knows a solution for this please tell me and I will be the
happiest guy in the universe.
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