Hello,
we are working on an interactive sound-installation. It is a wooden bell that opens vertically by sliding up it´s segments to make space for one person that sits down to listen to a guided meditation after the bell closes again. It´s all about the perception of one self and how it changes when one isolates from society and vision. The people will hear themselves over headphones and be instructed by a voice to make an "Ohm" and say several things that are secretly recorded and played back later in a way to expose the inner dialogue.
... using a timer*, I time-trigger recordings, playback of those, and sound-effects (reverberation, pitch-shift). In the end the participants will hear their own voice talking to them, but in two different pitches, one voice a little lower pitched talking as the inner-enemy and then a higher pitched voice commenting on this, creating a dialogue, giving the participants the chance to observe that theatre-play inside of their head.
To close the session, they will be asked to make another Ohm...and as background they will hear the recorded Ohm they made when they started plus the recorded and looped Ohms of all the participants who were under the bell before them (if possible, first one om...then the next joins and another...and then maybe fading it to three or more other Oms, before the whole choir joines the megaOm).

*! I want to modify this patch to use it´s timer, recorder and playback- features. The karaoke-text-display is not needed, cause everything will be instructed by a backgroud-voice (lostintro.wav).
To test the patch simply click on start, to open the patch right-click in the window, then open the object pd audio, where the recorders and playbk objects are hiding.

1. I can´t find a pitch-shift object except one in an old RjDj library called e_pitchshift.pd, but I didn´t yet managed to make it work in the patch. Any suggestions of an object that shifts the pitch by two semitones up/down? ...also I wonder how to implement this to make the workflow as easy as possible, because there will be a lot of samples. I guess it is the easiest to include it in playbk.pd, and use two different ones, one with playing back the samples with a higher pitch and one with a lower pitch. (?)

2. To combine and loop all recorded "ohms" into one file, i will need sth like a looper-object/patch, I am sure there are plenty out there. My biggest concern is, the different volumes of peoples voices, thats why I am wondering if there is a normalization-object?

3. I once found a trigger for recordings in an RjDj patch (that I can´t find anymore), that checked the db of the incoming signal and only when detecting a sound it started to record - I was wondering if I could use it to control, if people really say/sing things and if not repeat the question (or give more time to record? ...maybe substitute that even with the timer-triggered recordings?)

4. well, not really top priority, but I would love to make the whole patch run on a raspi. I already struggeled with the raspi for a while - who knows...maybe there is someone in Berlin who could help me to set this up during the next weeks?

5. I want to timetrigger a change of the reverberation of the live-signal at the beginning ...the great @whale-av helped me once to optimize this patch (lostgeneration) and deactivated the reverb (found in the down-left corner of the pd audio -object) ..unfortunately I can´t figure out how to reactivate it. Where do i have to connect the "r revtime"? right to/between the "dac~" object???

6. last but not least a little stupid question, but as i don´t even know the name of this "~" symbol it is hard to google. How to make the keyboardshortcut for this little ~er ? tired of having to copy paste it each time ?

Bämgreetings and thanks for any help or suggestion!

@pooopsi Hello again.....

1. Pitch shift can be done for [readsf~] up/down in octaves using [block~]. (see "resample.zip" here..... https://forum.pdpatchrepo.info/topic/10894/readsf-and-sample-rates
   It can be done for a sample in Ram at various speeds + reverse (you would have to read the recordings back into a table... not a problem) using phasor like this...... reverse (2).zip (You would need to use the output of [soundfiler] ..... the sample length.... to control the playback.... to play once and stop!!)
   BUT....if you want to keep the length of the sample as the original, and only change the pitch, things get more complicated....... you could use I07.phase.vocoder.pd from the pd/doc/3.audio.examples in your Pd installation folder.

2. Audio files read into a table can be automatically normalised after the table (array) is filled by sending it the message "normalize"........ open "keyboard" and then look inside "read_from_abstr"..... normalize.zip

3. There is an object that will do this...... [threshold~]

4. It should be possible to make it run on a RPI, but with the cost of a second-hand win7 laptop so low you will be making your life too difficult for no gain....

5. Sorry about that...... there is no reverb in the patch if I remember correctly. You could use [freeverb~] for example...... and put it where you wish...... before recording? or simply before the [dac~] for playback only.... and send it the data it needs from [pd reverb]

6. It is called "tilde"....... yes, Google drops quite a few characters. There is probably a shortcut for it already, but that will depend on your OS and keyboard layout,

David.

Thank you so much.

Ooompd.pd

Finally I managed to implement the reverb, but I am struggeling with the pitchshifting:

so It seems that i can substitute the playbk object simply with a timetriggered reverse-object, but it plays the files in loop. I tried to simply timetrigger the speed of the playback to 0 after the pitched sample is played back, but calculating the exact time the sample lasts after being pitched is not really precise... anyway, how i can play the pitched samples just one time? And how can I make it an Object like the playbk one - maybe calling one pitchLo and one pitchHi?
The change of the length of the pitched samples makes everything a little more complicated, but i just don´t see, how to connect the vocoder.

also I want to make use of an effect called Boomerang - where a delay of 283ms causes the brain to wait for your words to finish till you can go on speaking ... now i need to check how much latency my Macbook has, or if I change to another computer, who much the latency is there. is there a way to test this?
I found an option beside samplingrate in the audiopreferences, called Audioverzögerung (i guess that is latency) - it´s set to 20 - can I simply delete that? or make it smaller? or i simply substract this 20ms from the 283...

thanks again for all your help!

Om.zip (the patch with all necessary subpatches(recorder timer_set playbk, reverse)

Oh, and now I realize the "reverse Tst2" object reads/pitchshifts only the recordings from the last session... how can I pipe the playbk through the pitchshift?

and regarding 2. (normalization) ...can I implement this in the recorders.pd, to automatically normalize the tracks to one norm? (and ?!? HOW?)

Oh dear big Patchgod! Pleeeease wake up from your offlinetime and help me!

@pooopsi Hello again.... I had an hour on a ferry yesterday....... here is the result.
om-lost-generation.zip

You can set the pitch shift in semi-tones as the 4th argument of the playback abstraction, and the sample length stays the same. Maximum 1 minute for playback. Can be changed (see 60000 argument for [delwrite~ $3-del 60000]....)
I have added normalisation of the playback tables, and a limiter on the input for the recording.

I have not implemented a "threshold". I didn't have internet access and I had forgotten the "wish list".
It can be implemented, and timings could be adjusted to take into account the different recorded sample lengths that would be the result.

In your main patch I disconnected the mic as I only had the laptop and no headphones (feedback) and changed the timer settings for the playback modules (Test1 and 2) to speed up my testing...... sorry.
David.

@pooopsi
Not sure if you're still working on this, but here's a simple pitchshifter I've been using. cpitchshift.pd

Woooow, thank you so much dear great Patchgod!
I managed to change it so that the two different pitches come from left and right... Om3.zip
...which leads me to the question if I could pan it somehow better/ more precisely/spacial? (sth I anyway would love to learn!)

But let´s say I record everyone making an Ohm - and don´t want the files each time to be deleted/overwritten by the next recording, to playback all those Ohms later together /overdubbed as a choir?!

Bäm! As soon I will have the installation ready, I will post the pd part! Very best wishes and as always thankyouthankyoutankyousooooomuch!!!

Bam! Here is the first test: https://www.dropbox.com/s/wy67kjiwtzjlst1/Om4.zip?dl=0

So far so good, but somehow it seems that I can only playback one playbk-object a t the same time?

And I have the feeling the voice sounds really weired/shit - any chance I can improve the quality somehow?
Also the latency really sucks - could an external soundcard/mic help to improve the situation?

And I still really wonder how I could time trigger the whole thing to stop and reset, because i can´t link the timer_set to the on-off switch. ?

Ooomgreetings, B..

Well, this is getting closer to the idea:

https://www.dropbox.com/s/lnc4w4koftkk5zh/Om5.zip?dl=0

I still could not figure out, how i can playback different recorded samples using the same object at the same time.

Also, I would love to overdub all recorded Om-sounds in the end so that sth like a virtual choir is created.

Also the sound from the mic sounds not really good, I wonder if I am missing something?!

@pooopsi Here the errors are cleared........ again.zip
Sound from mic not good?..... can you post (zipped) a very short wav sample..... 3 or 4 seconds?

You can now play back different samples using the same object (with different name of course - $3) at the same time by using the same timings ($1+$2). The errors might have prevented that before....... if so.........my bad!
I.e.
[playbkr 30 45 om1 3]
[playbkr 30 45 om2 2]
Or even the same sample at the same time with different pitch.....
[playbkr 30 45 name 3]
[playbkr 30 45 name 2]

If you are going to record many people to make the choir then you will need to add another parameter to the recordings to keep them separate........ 1-name..... 2-name...... 3-name etc.
You will certainly be able to overdub and make your choir.
David.

Thanks again Mr Whale!

...finally it comes to the point where I can use the patch for an interactive performance!
(if you have time on wednesday and you are in berlin, please activate your invitation@ www.artsociety.io )

I still wonder how I can add the parameter to the writesf~ automatically to separate and archive the different recordings and then later combine all existing files to a choir.

Even more I wonder how I could "spread out" the different voices in space - in my patch, i use a simple L/R-stereopanning, but it doesn´t sound spacial at all - could you recommend me a binaural stereo panner and could i somehow randomize the settings for each different playbk, so that the voices are coming from different angles and maybe even depths... and dreaming big ...could i maybe even orbit those voices around the listener?

And last but not least i wonder: how can I best trigger the patch?! First I thought of sth like a BT- or USB-button that starts the patch, but maybe I can make it easier...and include sth like a HEY GOOGLE -speak command, or a specific knocking rhythm ?! Maybe you got an easy idiot-proof idea?!

Thanks a billion times for any advice!
Bäm

@pooopsi I don't think there will be (I will have) enough time to help with all that.
To play back a choir of tracks add [r $3] to one of the [playbkl] and one of the [playbkr] objects like this......

and save them.....
Then you can play back a choir of tracks with messages like this........

All "players" named in the list will play when you bang the message.

There was a pan in extended called [goggins_pan~] that attempts to make the sound "disappear off" as it goes hard right and left.

If you are using extended still then check out [audience~_help] which can move sources around between multiple speakers with the mouse.
It's slightly confusing...... speakers are inputs, which you will want to drag around the room.
Listeners are what you send to your actual speakers in the room, and that you will want to fix as per their actual positions in the room.
To get more outputs (listeners) right-click the room and set them in the properties dialog.
To get more inputs build a new one into your patch...... see the "constructor" words in that help patch to determine the arguments.
10 inputs and 10 outputs are possible...... and you can make the working space bigger with the first 2 arguments.

This will do stereo and quad sweeps (and cubic) for you....... https://forum.pdpatchrepo.info/topic/9803/grambilib-new-ambisonics-externals-for-pd
Put a 0-1 fader on the [phasor~] left inlet to vary the speed.
The bottom example in [grambilib~_help] will do some very weird auto-panning and could be what you are looking for......
David.

@pooopsi Ok ....... reading again....... brain still not in gear.

MAKE BACKUP before replacing these patches.

I have added a counter to each recorder so that the recordings are numbered.
If a recording namenice-5.wav has just been recorded then the players will play that.
If namenice-7 has just been recorded then that will play back in the player.

There is a new object [choir]
Put a [choir namenice] and you will see it has a play button.
Press it and all the "namenice" recordings should play together...... all sending to [throw~ out]
It has to exist before you start the recordings so that it knows how many files to play back.
They will play at normal speed.
[choir-part]....... the actual player........is dynamically created in the sub-patch inside [choir] each time a new recording is made with that name.
I hope........ ....... untested.
updates.zip

ERRORS...... just corrected.... and again.
David.

Big bäm Mr @whale-av - thx again and again!

Somehow the playbk/playbkr/playbkl don´t work anymore, when I replace the updated files.

I made the patch a little easier to test it´s functions:
https://www.dropbox.com/sh/evbxyk93hnyroym/AACAsfgF8gb7Eo9nEcGaGAfFa?dl=0
Egotest1 is the older version without the updated files. Playbk works fine
EgoTest2 is the new version: - playbk doesn´t work

The console shows this error message:
1025-float-1.wav-array: no such table
1025-float.wav-array: no such object
(and so on for each file I want to record).

-this is what it should do:

1. it´s playing back a wav
2. it´s playing back the mic in
3. making three recordings
4. playing back the recordings on playbk/playbkl/playbkr
5. playing back one recording multiple times with different pitches

• i still didn´t manage to make the "choir" working, but is there any chance I could play back the choir recordings, each on a different/random panning?

I couldn´t find "goggins_pan~" neither as an external or in PD, nor even with google?! Could you maybe upload that extension for me?

...aaand do you maybe know someone who is into PD and living in Berlin!?

Very best sunshine greetings