Best audio format for recording speech?

Hello everybody,
I was wondering which audio format (encoding, sample rate, sample size) is considered best for recording speech in regard of memory usage and perceptible/acceptable quality loss.
What do you suggest, what are your experiences, what reasons can you state?
Thanks!

I finally found something:
[sample rate for speech|http://wiki.audacityteam.org/index.php?title=Sample_Rates#32_kHz_.2F_14.5_kHz]
[bit depth|http://wiki.audacityteam.org/wiki/Bit_Depth#16_Bit]
I know audacity is not an application based on the java sound api but these wiki articles provide good common information on signal processing.
According to the article I believe 32kHz ist the optimal sample rate for recording speech. But I still don't feel satisfied by the information given about the bit depth. I think 8 bit is too low but 16 bit (CD quality) might be too sumptuous. Unfortunately the quality I can record with is limited my recording and output hardware so it might become hard for me to top that out. Maybe someone can help.
Is it true, that the encoding can be customized with codecs by extending the audio service provider? How would something like that work?

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bobmcinnis wrote:
> Someone is doing a voiceover and she said she can send
the file to me in
> whatever format I need it in. Would anyone know what the
best one would be that
> would be the best quality and easiest to work with in
Flash/After Effects? I'm
> on a Mac, btw.
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<urami>
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