seems do-able via either wave tables or osc~ but currently am not able to patch it.

suggestions?
ideas?

was drawn to this when I saw so many surfing videos but was struck how they are so (traditionally speaking) dissimilar from audio waves which are always only swells and never "break".

thanks, for your time.

and may love and peace always flower out if you.

sincerely,
s

look fwd to seeing what you think

@svanya If what you mean is to have an audio waveform that looks like a breaking wave, the problem with that is that for the ripple portion of the waveform you'd need two or three y points on the same x index. I guess the furthest you can go is just before the wave breaks, and that would basically be a sawtooth wave with a curved segment.

@svanya I tried it in the bath when I was young....... but you need a backwash..... an undertow.... for them to break.
If that makes sense (which it must) it might help...... but in Pd logic terms I am not so sure.....
David.
PS.... I know that is a stupid reply.
You cannot have a waveform that "curls back" underneath itself...... as @weightless says.
But maybe you need to create a sort of "building tension" in your sound....... followed by a prolonged "crash" and then calm.
I don't mean to be rude, but the "tension" part needs to sort of "suck" and continue under the breaking "crash".

my current thinking is...

for the static version of just sound cresting use 3 wave tables assembled with the 3 shapes representated below (sin(x=0 to 3/2pi), sin(x=(pi to 3/2pi)/2offset pi), and sin(x=pi-2pi).

as to whether this will auditorially speaking result in 0, I am unconcerned, i.e. just sum them and see what it sounds like/is it discernibly different from just osc.

if someone, can tell me how to get those wave tables, that would be great. thanks, in advance.

note: also found this:

http://teachersinstitute.yale.edu/curriculum/units/2008/5/08.05.06.x.html

which may lead us to a possible Dynamic osc~ of breaking-wave form, since I am pretty sure we can do this using [osc~] plus some fancy audio arithmetic, ex. a timer to [*~ 0] where any of the 3 forms are not present, etc.

thanks, also for any and all thought put into it.

just stumps me, why on one hand Nature makes perfect osc sound but does not do the same thing for liquids (matter?).

peace and love. may your day be blessed.
-s

As to an audio wave not being able to curl back, it can if the wave form is looked at as the sum of 3 wave forms where the value between t(or x)=a,b,c, or d are flattened to 0. So the audio signal is not one osc~ but rather 3 truncated ones then summed [+~].

At least that would represent (visually) what a nautical wave does.

Which is why I am so intrigued. Nautical waves "do" it. But have not seen nor heard audio waves do so.

@svanya Acoustic waves are Longitudinal and liquid waves are far more complex. Water waves are bounded by the interface between gas and liquid as well. There is not really a common relationship.
http://www.acs.psu.edu/drussell/demos/waves/wavemotion.html
Have a look at the PMPD library again for some inspiration maybe......
There are a few examples of wave-like particle behaviour in there, and some with ideas for accompanying audio generation.
David.

Waves observed in liquid, in a string, in a drum head etc (material waves) are functions of time and space while audio are only time-dependant. As a result you can derive audio signals from a material wave for by fixing a position and observing a property of the material wave at this dertermined position over time. For example, let's imagine a little fishing float maintained that would "freely" slide on a vertical rod maintained in a fixed position in water (in order to get rid of the space variables). The float would go up and down over time as the waves come and go, and the vertical position signal obtained would be a an audio signal (provided it's mean over time is zero), also all the derivatives of this signal accompanied by frequency multiplication and amplitude modifications, but also pressure or desity measurements or whatever you want. This is a way of thinking the link between material waves (the ones you draw, with the horizontal axis representing space, with a freezed time) and strictly time-dependent signals (very near to audio signal, just a matter of being "centered" on the x axis).
This proximity allows for "sonification" of intrinsically non-audio phenomena, like "hearing a black hole squeaking" etc.

Sorry, now that I'm reading back what I've written I feel like all this is probably obvious to you, or simply useless.

Nau

@whale-av ocean waves are tranverse. if you add a a sawtooth LFO to your waveform it will mimic a transverse wave.