Python Library Reference
Previous: 14.5.1 Wave_read Objects Up: 14.5 wave Next: 14.6 chunk

 

 
14.5.2 Wave_write Objects

Wave_write objects, as returned by open(), have the following methods:

close()

Make sure nframes is correct, and close the file. This method is called upon deletion.

setnchannels(n)

Set the number of channels.

setsampwidth(n)

Set the sample width to n bytes.

setframerate(n)

Set the frame rate to n.

setnframes(n)

Set the number of frames to n. This will be changed later if more frames are written.

setcomptype(type, name)

Set the compression type and description.

setparams(tuple)

The tuple should be (nchannels, sampwidth, framerate, nframes, comptype, compname), with values valid for the set*() methods. Sets all parameters.

tell()

Return current position in the file, with the same disclaimer for the Wave_read.tell() and Wave_read.setpos() methods.

writeframesraw(data)

Write audio frames, without correcting nframes.

writeframes(data)

Write audio frames and make sure nframes is correct.

Note that it is invalid to set any parameters after calling writeframes() or writeframesraw(), and any attempt to do so will raise wave.Error.