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<title>14.4.2 AU_write Objects
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<H2><A NAME=
"SECTION0016420000000000000000"></A><A NAME=
"au-write-objects"></A>
AU_write objects, as returned by
<tt class=
"function">open()
</tt> above, have the
<dl><dt><table cellpadding=
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"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4697' xml:id='l2h-
4697'
class=
"method">setnchannels
</tt></b>(
</nobr></td>
<td><var>n
</var>)
</td></tr></table></dt>
Set the number of channels.
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4698' xml:id='l2h-
4698'
class=
"method">setsampwidth
</tt></b>(
</nobr></td>
<td><var>n
</var>)
</td></tr></table></dt>
Set the sample width (in bytes.)
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4699' xml:id='l2h-
4699'
class=
"method">setframerate
</tt></b>(
</nobr></td>
<td><var>n
</var>)
</td></tr></table></dt>
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"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4700' xml:id='l2h-
4700'
class=
"method">setnframes
</tt></b>(
</nobr></td>
<td><var>n
</var>)
</td></tr></table></dt>
Set the number of frames. This can be later changed, when and if more
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"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4701' xml:id='l2h-
4701'
class=
"method">setcomptype
</tt></b>(
</nobr></td>
<td><var>type, name
</var>)
</td></tr></table></dt>
Set the compression type and description.
Only
<code>'NONE'
</code> and
<code>'ULAW'
</code> are supported on output.
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"0" cellspacing=
"0"><tr valign=
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<td><nobr><b><tt id='l2h-
4702' xml:id='l2h-
4702'
class=
"method">setparams
</tt></b>(
</nobr></td>
<td><var>tuple
</var>)
</td></tr></table></dt>
The
<var>tuple
</var> should be
<code>(
<var>nchannels
</var>,
<var>sampwidth
</var>,
<var>framerate
</var>,
<var>nframes
</var>,
<var>comptype
</var>,
<var>compname
</var>)
</code>, with
values valid for the
<tt class=
"method">set*()
</tt> methods. Set all parameters.
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"0" cellspacing=
"0"><tr valign=
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<td><nobr><b><tt id='l2h-
4703' xml:id='l2h-
4703'
class=
"method">tell
</tt></b>(
</nobr></td>
<td><var></var>)
</td></tr></table></dt>
Return current position in the file, with the same disclaimer for
the
<tt class=
"method">AU_read.tell()
</tt> and
<tt class=
"method">AU_read.setpos()
</tt> methods.
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"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4704' xml:id='l2h-
4704'
class=
"method">writeframesraw
</tt></b>(
</nobr></td>
<td><var>data
</var>)
</td></tr></table></dt>
Write audio frames, without correcting
<var>nframes
</var>.
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"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4705' xml:id='l2h-
4705'
class=
"method">writeframes
</tt></b>(
</nobr></td>
<td><var>data
</var>)
</td></tr></table></dt>
Write audio frames and make sure
<var>nframes
</var> is correct.
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline">
<td><nobr><b><tt id='l2h-
4706' xml:id='l2h-
4706'
class=
"method">close
</tt></b>(
</nobr></td>
<td><var></var>)
</td></tr></table></dt>
Make sure
<var>nframes
</var> is correct, and close the file.
This method is called upon deletion.
Note that it is invalid to set any parameters after calling
<tt class=
"method">writeframes()
</tt> or
<tt class=
"method">writeframesraw()
</tt>.
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<span class=
"release-info">Release
2.4.2, documentation updated on
28 September
2005.
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