scottish

long time lurker, and now i've got a problem that i don't know how to start on

i know what notes make up the chords i play on guitar but i want my computer to know them too. so my question is how can i extract incoming notes from chords as i play?

determining-the-notes-in-a-chord-from-an-incoming-audio-source

Ahhh this is a hard problem to solve. Polyphonic pitch detection in Max

has always been the holy grail. I have been researching how one might

do that. You might want to look into Pitch Class Profile Computation.

Not sure if there are any existing externals that do it.

Alternately you can invest in some of the new software tool like

Melodyne (DNA). Which seems to magically do polyphonic pitch detection.

Ahhh this is a hard problem to solve. Polyphonic pitch detection in Max
has always been the holy grail. I have been researching how one might
do that. You might want to look into Pitch Class Profile Computation.
Not sure if there are any existing externals that do it.

Alternately you can invest in some of the new software tool like
Melodyne (DNA). Which seems to magically do polyphonic pitch detection.


wanting to know what each string of you gtr is doing?

Patch for guitar
Puckette, M.
On-line proceedings, Pd-convention (http://pure-data.ca/en/)
2007


samuel: i think the site moved because that link is for a sex toy

thank you anthony and samuel
samuel: i think the site moved because that link is for a sex toy


Here is a link to a paper explaining the patch:

http://crca.ucsd.edu/~msp/Publications/pd07-reprint.dir/

It would be great if someone had a link to the PD patch for us to check out as well.

Just to clarify, Puckette isn't analyzing an audio signal from a standard guitar pickup and detecting events on separate strings, he is using a custom multi-output pickup which makes the rest of the patch possible.

To my knowledge, digital polyphonic pitch-tracking currently isn't possible in real-time. Melodyne etc..... is for editing not live processing.

Just to clarify, Puckette isn't analyzing an audio signal from a standard guitar pickup and detecting events on separate strings, he is using a custom multi-output pickup which makes the rest of the patch possible.  

To my knowledge, digital polyphonic pitch-tracking currently isn't possible in real-time.  Melodyne etc..... is for editing not live processing.


Have a look at Arshia Conts object "Transcribe~"

http://cosmal.ucsd.edu/arshia/index.php?n=Main.Multipitch

I stand corrected, this is very interesting! Cheers for the link.

I stand corrected, this is very interesting!  Cheers for the link.


miller puckettes guitar patch is here: http://crca.ucsd.edu/~msp/smeck/latest/


"Just to clarify, Puckette isn't analyzing an audio signal from a standard guitar pickup and detecting events on separate strings, he is using a custom multi-output pickup which makes the rest of the patch possible."

The StringPort by Keith McMillen should work fine:

The string port still wants to see a pickup. hexaphonic

"The string port still wants to see a pickup. hexaphonic"

Does it work fine with a piezzo setup (such Graph Tech, RMC Pickup) on a guitar?

In its current state (beta testing), the StringPort works marvelously!

In its current state (beta testing), the StringPort works marvelously!
(yes, I got one ;-)

determining the notes in a chord from an incoming audio source