To Pitch (filtered autocorrelation)...

[Katrina Kechun Li]

Hello, 

In the latest Praat , the 'filtered autocorrelation' is the recommended default when generating a Pitch object. I wonder if this command is also available in parselmouth?

https://www.fon.hum.uva.nl/praat/manual/pitch_analysis_by_filtered_autocorrelation.html

Many thanks!

Best wishes,

Katrina

[yannick...@gmail.com]

Hi Katrina

Yeah, no, you're not the first to ask, but I unfortunately still haven't had decently time to release the update! :-(

In short, the released version Parselmouth 0.4.6 is based on Praat 6.1.38, which didn't have the new pitch analysis yet.

One way to get a newer version would be to install a development version (i.e., the version I'm working on, but isn't quite ready for release), by downloading the latest wheels of the development branch: https://github.com/YannickJadoul/Parselmouth/actions/workflows/wheels.yml?query=branch%3Amaster

To do so, you go to the last build (i.e., currently https://github.com/YannickJadoul/Parselmouth/actions/runs/18417998133), scroll down to the "Artifacts", download the zip for your system (windows/linux/mac), extract the "Python wheel" for the version of Python you have, and `pip install ....whl`.

If you want to try this and could use help with that, just let me know which system you have and which version of Python, and I can help you with that!

Alternatively, there might be a way of doing the filtering separately, and then run the old (non-filtered) AC pitch detection?

If you want to try that, I could also have a closer look at that.

Kind regards

Yannick

[王珺]

Dear Yannick,
I've tried your recommended way to get a newer version of Praat, and it worked. However, the newer version in the dev wheel is parselmouth.PRAAT_VERSION '6.4.16'. It turns out the PRAAT version that supports the advanced  'filtered autocorrelation'  is '6.4.44'.

Is it possible for you to make a convenient commit for that version 6.4.44 in your dev wheel. Many thanks,

Jun

[yannick...@gmail.com]

Dear Jun

Thank you for telling me! 6.4.44 is the previous to last version, though. I thought "To Pitch (filtered autocorrelation)" was a bit older than that?

Based on the changelog, it would seem it was introduced in 6.4.0? https://www.fon.hum.uva.nl/praat/manual/What_was_new_in_6_4_.html

Can you tell me what you tried, so I can perhaps try again?

Do note that there will not be a nice `Sound` method, but you'll have to run something like `pitch = parselmouth.praat.call(sound, "To Pitch (filtered autocorrelation)", x, y, z)` (see https://parselmouth.readthedocs.io/en/latest/api/parselmouth.praat.call.html#parselmouth.praat.call)

Cheers

Yannick

[Jun Wang]

Dear Yannick,
I tried your new proposal. And it worked! Many thanks!
For others who want to try it out. I put a precise example line here:
pitch2 = parselmouth.praat.call(sound, "To Pitch (filtered
autocorrelation)...", 0.0, 50.0, 800.0, 15, "no", 0.03, 0.09, 0.50,
0.055, 0.35, 0.14)

Note: Don't miss the "..." after the To "Pitch (filtered
autocorrelation)" command.

Cheers,
Jun

yannick...@gmail.com <yannick...@gmail.com> 于2025年10月13日周一 22:22写道：

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[yannick...@gmail.com]

Thanks, Jun!

So to give a bit more context, this function has not been exposed yet as Python method, so that is why you need to run it through `parselmouth.praat.call`.

Additionally, running `parselmouth.praat.call(sound, "To Pitch (filtered autocorrelation)", 0.0, 50.0, 800.0, 15, "no", 0.03, 0.09, 0.50, 0.055, 0.35, 0.14)` (without the dots) should also work, because Parselmouth automatically adds the dots if you pass 1 or more arguments after it! (Also, you can replace "no" with False, if you prefer it the Python way ;-) )

Cheers

Yannick