14.4.2 AU_write Objects
AU_write objects, as returned by open() above, have the
following methods:
- setnchannels (n)
-
Set the number of channels.
- setsampwidth (n)
-
Set the sample width (in bytes.)
- setframerate (n)
-
Set the frame rate.
- setnframes (n)
-
Set the number of frames. This can be later changed, when and if more
frames are written.
- setcomptype (type, name)
-
Set the compression type and description.
Only
'NONE' and 'ULAW' are supported on output.
- setparams (tuple)
-
The tuple should be
(nchannels, sampwidth,
framerate, nframes, comptype, compname), with
values valid for the set*() methods. Set all parameters.
- tell ()
-
Return current position in the file, with the same disclaimer for
the AU_read.tell() and AU_read.setpos() methods.
- writeframesraw (data)
-
Write audio frames, without correcting nframes.
- writeframes (data)
-
Write audio frames and make sure nframes is correct.
- close ()
-
Make sure nframes is correct, and close the file.
This method is called upon deletion.
Note that it is invalid to set any parameters after calling
writeframes() or writeframesraw().
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