I am experimenting with CHOP's, and I am controlling a sphere's translation using the amplitude of audio from my microphone. This works, but I can only control the sphere while I talk, and I want to be able to save the input from my microphone, so I can then play it back again. I tried using a MIDI Out node, but apparently I did that wrong, as no MIDI file was even written. Any help would be appreciated, thanks.

Try using the Record CHOP.

I also tried that to no avail. But I never read the help article on it. So I'll go do that.

UPDATE: Okay, I figured out how all that worked. Thanks. Still, is there any way I could output it to a file for use after I've closed Houdini?

You can right mouse click on the record CHOP and select “save data channels” as .BCLIP, .BCHAN, .AIFF, or .WAV (or several more).

cheers,
Abdelkareem

Cool, thanks!

Note also that after recording, you can just hit the lock (red) flag on the Record CHOP so that it no longer recooks. Now the audio should be saved along with the .hip file.

Okay, that's simpler and easier than what I've been doing.

While it might work ok I'd keep in mind that Houdini is NOT an audio recording application. Houdini is great when reading and writing files on disk, but it's not designed for that sort of thing

(that being said I'd have no objections to Houdini implementing JAX and ASIO) !

currently, I'd highly recommend using a dedicated audio program (cubase, nuendo, cakewalk, vegas, audition, ardour, many other linux, etc etc) with good memory management and buffering abilities .. to record your audio.

Then reading in an “edited” or trimmed down section from disk using the file CHOP after the fact.

I'm recording mouse movements, not audio. I record audio with Audacity.