There is actually several options here

• either you are a developper so you can directly use libpd as an audio engine, and use the api to send or receive data from your patch to/from you favorite language (c# c++ java etc.) you can then create your ui in this programming language. Plasma sound uses a mix of android specific code and the processing-for-android drawing api. With this method you need to use something like eclipse or android studio but you can create binary signed apps that you can upload to the android store. (it works great, I've published several apps with this combination).

• either you want to stick with pd :
  1- pddroidparty will run your patch in a specific android app emulating the pd gui with a few additions (touch surface etc.), the sources from Chris target android only. But Pd-party by danomatika will target ios soon (now beta I think).
  2- mobmuplat is also a very neat project, where you can do probably a little more with the graphics. android and ios.
  3- sceneplayer on android is also a way to read patchs on android, it provides a way to display/hide and move images too. It target android, the ios version rjdj is sadly long lost.
  4- ppp mentionned before, will help you publish app using pd as a wysiwyg editor in the same way of pddroidparty, but you'll end up with a signed binary ready to distribute. It also packs a midi clock shared via wifi to sync several apps with one another.

I think it sums up all the options here.

So back to data-structures : data-structures are in libpd, but none of the projects above supports them to my knowledge, you can't display or interact with them. If you program you can probably access them through libpd, draw/manipulate them in the programming language of your choice.

@Wolf-Breath Hello there......
The symptoms that you describe are those of Pd struggling because of incorrect audio settings. It is not your fault, they are not easy to set up initially.
The quickest way to get it working (and you would have the advantage of using the computers other audio connections at the same time, or even multiple asio soundcards) would be to use Asio4all......... http://www.asio4all.com/
I am assuming that you are using windows (FL and reaper)?

(FROM HERE TO........... "END" BELOW SHOULD HELP WITH YOUR CURRENT DRIVER AS WELL!)
Make sure you select ASIO in the Media window first.
Then in your Media/Audiosettings window choose Asio4all (or your asio driver for your Focusrite if you don't want to use Asio4all) as your soundcard and set the channels (number of channels) that you want to use (total including your computer soundcard). Don't worry if you set too many, as Pd will just drop any that don't actually exist.

Set Pd something like this.......
If you have problems then set the samplerate to match your soundcard, the delay higher (try 30 or more for example and then gradually decrease it to reduce the latency) and try a higher block size although that should not be necessary. Ticking the callbacks box allows Pd to communicate better with the soundcard. Then go back to choosing your soundcard again. The setup you see above gives 2ms latency which is excellent. (END)

Now you should have a little green icon for the asio4all driver in your taskbar (if it is red then there are settings to be changed to make it work).
Click that to open asio4all settings and you should see something like this........ If not then click the "spanner"at the bottom right corner.

Choose which inputs and outputs you want to use, and count down the list of active ins and outs making a note of their order in the list (ins and outs separately). They will be numbered [dac~ 1] etc. in the same order in Pd.

Good luck, and come back here if you are still struggling....
You might find that Pd is still struggling because of your old settings. If so then start Pd with no audio from a batch file using the -noaudio flag, before you do the above........ see below.....
David.
If you don't know how to use a batch file then try this before you start setting up your soundcard. It will reset the sound settings so that Pd responds properly again!! http://forum.pdpatchrepo.info/topic/9250/pd-will-not-start
Or make your own like this.....
It will open Pd and load the directory in which the patch Minx_Run.pd can be found, load the readsf~ directory and then turn off audio, turn on asio, turn off midi and load the patch Minx_Run.pd......

Later, when all of your settings are correct you can have different setups depending upon which soundcards you have connected, like this...........

@mod said:

But time and time again we see the same sort of posts. People who just want to turn an audio signal on and off use something like [spigot~], people use [counter] instead of basic pd objects. They post these patches and run into trouble that could easily be avoided by only using vanilla objects unless necessary.

What's wrong with [counter]? Objects like those remedy the trouble of trying to figure out how to make one using only vanilla objects. Not that it's particularly difficult to do, but it may just be more intuitive or time saving to someone to use [counter].

Of course most people are using extended, but it's such a vast ocean that no-one knows how EVERY object in extended works. The object in question here, [gate], i can only hazard a guess, but i'm thinking that a maximum of 50% of users know the cyclone library and in particular the [gate] object well enough to debug a patch.

Well, that's where the basic advice that you and others have posted comes in: Right click -> Help.

Besides, I don't really think that because less people know or use an object should deter one from trying it. It may just make more sense or fit with their particular programming preferences. I know I like to build from low-level objects and work up, but not everyone is so interested. For example, I've built my own compressor abstraction. But plenty of other people would rather just load a compressor object and be done with it. Nothing wrong with either approach.

Also, I've been using Pd long enough that I feel comfortable saying I'm in "expert" territory. I don't know what every extended object does, but I don't know what EVERY vanilla object does, either.

(I'm speaking from my own bad experiences here too, because my old patches had some extended objects in them, and i answered countless emails from people having trouble with those externals not loading. I could have saved myself a lot of time by just using the correct vanilla constructs in the first place)

Now, this is a different issue, and I'm more inclined to agree here. You can definitely ensure higher compatibility by sticking to vanilla objects, as some externals don't work correctly on all OS's and vanilla users may not have some of the more popular libraries installed, but it does come with the potential costs of flexibility or computational load. And, this is only an issue if you want to share your patches or use them on other OS's.

When I'm writing a patch that's for personal use only, and I don't expect to be sharing it, I tend to use whatever I want. But if I'm making an abstraction I might share, I usually follow an order of precedence:

1. Use vanilla objects where possible/practical for best compatibility.
2. Use extended objects if needed, since it's used widely and newbie-friendly.
3. If absolutely necessary, use a popular lib not included in Pd-extended, like GridFlow or RjLib (I've never had to do this, yet).

But that's entirely for compatibility reasons only.

@Shakasin said:

But is there something in vanilla that could replace my [gate] just curious ?

. [== 1] [== 2] [== 3]
| | |
[spigot] [spigot] [spigot] etc....

Connect the gate number to the left inlet of the [== ] objects, and the value you want to pass to the left inlet of the [spigot]s.

Well I worked a week on that cute GEM GUI, but when connecting the audio processing I stumbled upon the big drawback. Dropouts!

I should have known, because I played around with sonsofsol's ZODIAC which must load the audio in a different Pd instance. Naively, I assumed this is useful for cases when you want to run the processes on different computers. I did not realize that it is absolutely problematic to run GEM and audio in the same Pd (while it's so easy to check that...).

OK then, need to run two processes for one application. On Windows and Linux this is straightforward because if you open a patch by clicking, it is automatically opened in a new Pd. That is how you can have loads of Pd's opened without even being aware of it. On OSX only one Pd is loaded, even if you click to open new patches from the finder. So you need to open a second Pd from the command line. Further, you need to turn audio on and off again in the Pd with the GEM. Why? When you start Pd, dsp is apparently off, but still there is CPU load associated with audio computation. This only stops after turning dsp on and off. If you forget this, some 10% CPU load is waisted on a process doing no audio at all. And another nuisance: two Pd consoles on the screen - which one is which?

I wanted to use GEM to make some patches very user-friendly, with informative GUI elements. But in a two-Pd version, it is no longer so straightforward to even open the patches. For Pd-beginners such an application may be discouraging. Therefore I think, when we want to use GEM as interactive user interface for widely shared patches, the issues should be solved somehow. Maybe a script should be developed to perform all the necessary actions in the correct order.

By the way has anyone tried to use [pd~] for separating processes? I have never used [pd~] so far, maybe this is a very stupid question...

Katja

First my story: (you can skip down to END OF STORY if you want)

Ever since I saw Mike Relm go to town with a DVDJ, I've wanted a system where I could scratch and cue video. However, I haven't wanted to spend the $2500 for a DVDJ. As I was researching, I found a number of different systems. I am not a DJ by trade, so to get a system like Traktor or Serrato with their video modules plus turntables plus hardware plus a DJ mixer, soon everything gets really expensive. But in looking around, I found the Ms.Pinky system and after a little bit, I found a USB turntable on Woot for $60. So I bought it. It was marketed as a DJ turntable, but I knew that it wasn't really serious since it had a belt drive, but it came with a slip-pad and the USB connection meant that I wouldn't need a preamp. And so I spend the $100 on the Ms.Pinky vinyl plus software license (now only $80). This worked decently, but I had a lot of trouble really getting it totally on point. The relative mode worked well, but sometimes would skip if I scratched too vigorously. The absolute mode I couldn't get to work at all. After reading a little more, I came to the conclusion that my signal from vinyl to computer just wasn't strong enough, so I would need maybe a new needle or maybe a different turntable and I didn't really want to spend the money experimenting. I think that the Ms. Pinky system is probably a very good system with the right equipment, but I don't do this professionally, so I don't want to spend the loot on a system.

Earlier, before I bought Ms.Pinky (about two years ago), I had also looked around for a cheap MIDI USB DJ controller and not found one. Well, about a month ago, I saw the ION Discover DJ controller was on sale at Bed, Bath & Beyond for $50. They sold out before I could get one, but Vann's was selling it for $70, so I decided that that was good enough and bought one. I had planned to try to use it with Ms. Pinky since you can hook up MIDI controllers to it. But it turns out that you can hook up MIDI controllers to every control except the turntable, so that was a no go. If I had Max/MSP/Jitter, I could have changed that, but that's also way expensive. So, how should I scratch? My controller came with DJ'ing software and there's also some freeware, like Mixxx, but none of this has video support. So I look around and find Pure Data and GEM.

And I see lots of questions about scratching, how to do it. And there are even some tutorials and small patches out there, but as I look at them, none of them are quite what I'm looking for. The YouTube tutorial is really problematic because it's no good at all for scratching a song. It can create a scratching sound for a small sample, but it's taking the turntable's speed and using that as the position in the sample. If you did that with a longer song, it wouldn't even sound like a scratch. And then there are some which do work right, but none of them keep track of where you are in the playback. So, whenever you start scratching, you're starting from the beginning of the song or the middle.

So, I looked at all this and I said, "Hey, I can do this. I've got my spring break coming up. Looking at how easy PD looks and how much other good (if imperfect) work other people have done, I bet that I could build a good system for audio and video scratching within a week." And, I have.

END OF STORY

So that's what I'm presenting to you, my free audio and video scratching system in Pure Data (Pd-extended, really). I use the name DJ Lease Def, so it's the Lease Def DJ system. It's not quite perfect because it loads its samples into tables using soundfiler which means that it has a huge delay when you load a new file during which the whole thing goes silent. I am unhappy about this, but unsure how to fix it. Otherwise, it's pretty nifty. Anyway, rather than be one big patch, it relies on a system of patches which work with each other. Each of the different parts will come in several versions and you can choose which one you want to use and load up the different parts and they should work together correctly. Right now, for most of the parts there's only one version, but I'll be adding others later.

There's a more detailed instruction manual in the .zip file, but the summary is that you load:

the engine (only one version right now): loads the files, does the actual signal processing and playback

one control patch (three versions to choose from currently, two GUI versions and a MIDI version specific to the Ion Discover DJ): is used to do most of the controlling of the engine other than loading files such as scratching, fading, adjusting volume, etc.

zero or one cueing patch (one version, optional): manages the controls for jumping around to different points in songs

zero or one net patch (one version: video playback): does some sort of add-on. Will probably most commonly be used for video. The net patches have to run in a separate instance of Pd-extended and they listen for signals from the engine via local UDP packets. This is set-up this way because when the audio and video tried to run in the same instance, I would get periodic little pops, clicks, and other unsmoothnesses. The audio part renders 1000 times per second for maximum fidelity, but the video part only renders like 30 or 60 times per second. Pure Data is not quite smooth enough to handle this in a clever real-time multithreading manner to ensure that they both always get their time slices. But you put them in separate processes, it all works fine.

So, anyway, it's real scratching beginning exactly where you were in playing the song and when you stop scratching it picks up just where you left off, you can set and jump to cue points, and it does video which will follow right along with both the scratching and cuing. So I'm pretty proud of it. The downsides are that you have to separate the audio and video files, that the audio has to be uncompressed aiff or wav (and that loading a new file pauses everything for like 10 seconds), that for really smooth video when you're scratching or playing backwards you have to encode it with a codec with no inter-frame encoding such as MJPEG, which results in bigger video files (but the playback scratches perfectly as a result).

So anyway, check it out, let me know what you think. If you have any questions or feedback please share. If anyone wants to build control patches for other MIDI hardware, please do and share them with me. I'd be glad to include them in the download. The different patches communicate using send and receive with a standard set of symbols. I've included documentation about what the expected symbols and values are. Also, if anyone wants me to write patches for some piece of hardware that you have, if you can give me one, I'll be glad to do it.

Keith Irwin (DJ Lease Def)

http://www.pdpatchrepo.info/hurleur/leasedefdj.zip

Greetings all,

I have just posted a collection of student patches for an interaction design course I was teaching at Emily Carr University of Art and Design. I hope that the patches will be useful to people playing around with Pure Data in a learning environment, installation artwork and other uses.

The link is: http://bit.ly/8OtDAq
or: http://www.sfu.ca/~leonardp/VideoGameAudio/main.htm#patches

The patches include multi-area motion detection, colour tracking, live audio looping, live video looping, collision detection, real-time video effects, real-time audio effects, 3D object manipulation and more...

Cheers,
Leonard

http://www.VideoGameAudio.com

Pure Data Interaction Design Patches

These are projects from the Emily Carr University of Art and Design DIVA 202 Interaction Design course for Spring 2010 term. All projects use Pure Data Extended and run on Mac OS X. They could likely be modified with small changes to run on other platforms as well. The focus was on education so the patches are sometimes "works in progress" technically but should be quite useful for others learning about PD and interaction design.

NOTE: This page may move, please link from: http://www.VideoGameAudio.com for correct location.

Instructor: Leonard J. Paul
Students: Ben, Christine, Collin, Euginia, Gabriel K, Gabriel P, Gokce, Huan, Jing, Katy, Nasrin, Quinton, Tony and Sandy

GabrielK-AsteroidTracker - An entire game based on motion tracking. This is a simple arcade-style game in which the user must navigate the spaceship through a field of oncoming asteroids. The user controls the spaceship by moving a specifically coloured object in front of the camera.
Features: Motion tracking, collision detection, texture mapping, real-time music synthesis, game logic

GabrielP-DogHead - Maps your face from the webcam onto different dog's bodies in real-time with an interactive audio loop jammer. Fun!
Features: Colour tracking, audio loop jammer, real-time webcam texture mapping

Euginia-DanceMix - Live audio loop playback of four separate channels. Loop selection is random for first two channels and sequenced for last two channels. Slow volume muting of channels allows for crossfading. Tempo-based video crossfading.
Features: Four channel live loop jammer (extended from Hardoff's ma4u patch), beat-based video cross-cutting

Huan-CarDance - Rotates 3D object based on the audio output level so that it looks like it's dancing to the music.
Features: 3D object display, 3d line synthesis, live audio looper

Ben-VideoGameWiiMix - Randomly remixes classic video game footage and music together. Uses the wiimote to trigger new video by DarwiinRemote and OSC messages.
Features: Wiimote control, OSC, tempo-based video crossmixing, music loop remixing and effects

Christine-eMotionAudio - Mixes together video with recorded sounds and music depending on the amount of motion in the webcam. Intensity level of music increases and speed of video playback increases with more motion.
Features: Adaptive music branching, motion blur, blob size motion detection, video mixing

Collin-LouderCars - Videos of cars respond to audio input level.
Features: Video switching, audio input level detection.

Gokce-AVmixer - Live remixing of video and audio loops.
Features: video remixing, live audio looper

Jing-LadyGaga-ing - Remixes video from Lady Gaga's videos with video effects and music effects.
Features: Video warping, video stuttering, live audio looper, audio effects

KatyC_Bunnies - Triggers video and audio using multi-area motion detection. There are three areas on each side to control the video and audio loop selections. Video and audio loops are loaded from directories.
Features: Multi-area motion detection, audio loop directory loader, video loop directory loader

Nasrin-AnimationMixer - Hand animation videos are superimposed over the webcam image and chosen by multi-area motion sensing. Audio loop playback is randomly chosen with each new video.
Features: Multi-area motion sensing, audio loop directory loader

Quintons-AmericaRedux - Videos are remixed in response to live audio loop playback. Some audio effects are mirrored with corresponding video effects.
Features: Real-time video effects, live audio looper

Tony-MusicGame - A music game where the player needs to find how to piece together the music segments triggered by multi-area motion detection on a webcam.
Features: Multi-area motion detection, audio loop directory loader

Sandy-Exerciser - An exercise game where you move to the motions of the video above the webcam video. Stutter effects on video and live audio looper.
Features: Video stutter effect, real-time webcam video effects

No sound out of this Oscar.

Here's a bit of the error message:

ch file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus13.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus16.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus16.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus14.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus14.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/zapa06.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav: No such file or directory
error: soundfiler_read: /home/pelao/Documentos/audio/loops/terminus15.wav:

But, it looks awesome.

Keep well ~ Shankar

didnt know jack also worked for windows xp?

EDIT:just downloaded jack from the website,but i get all kinds of errors when i try to unzip?

! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open Versions\Current\Headers (jack-1.9.2\bin\osx_32bits\Jackmp.framework\Headers --> Versions\Current\Headers)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open Versions\Current\Jackmp (jack-1.9.2\bin\osx_32bits\Jackmp.framework\Jackmp --> Versions\Current\Jackmp)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open Versions\Current\Resources (jack-1.9.2\bin\osx_32bits\Jackmp.framework\Resources --> Versions\Current\Resources)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create ersions\Current\Headers
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Jackservermp
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Resources
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open jack-1.9.2\bin\osx_32bits\Jackservermp.framework\Resources (A --> jack-1.9.2\bin\osx_32bits\Jackservermp.framework\Resources)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Panda
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Resources
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open jack-1.9.2\bin\osx_32bits\Panda.framework\Resources (A --> jack-1.9.2\bin\osx_32bits\Panda.framework\Resources)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Headers
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Jackmp
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Resources
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open jack-1.9.2\bin\osx_64bits\Jackmp.framework\Resources (A --> jack-1.9.2\bin\osx_64bits\Jackmp.framework\Resources)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Headers
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Jackservermp
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Resources
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open jack-1.9.2\bin\osx_64bits\Jackservermp.framework\Resources (A --> jack-1.9.2\bin\osx_64bits\Jackservermp.framework\Resources)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Panda
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create Versions\Current\Resources
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot open jack-1.9.2\bin\osx_64bits\Panda.framework\Resources (A --> jack-1.9.2\bin\osx_64bits\Panda.framework\Resources)
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Symbolic link points to missing file
! C:\Documents and Settings\administartor\Desktop\jack audio\jack-1.9.2.tgz: Cannot create

transcomp~ uses transdetect~ to shape the initial attack and release of a signal.

Requires IEM's FIR~, fexpr~ and dbtorms~ which are provided in PD-Extended.
To work properly the transdetect folder should be added to PD's path.

Start by opening help-transcomp~.pd

01 Implementation:

transdetect~ works by using two pairs of envelope followers. The first pair
subtracts an envelope follower with a slow attack from an accurate follower,
the result of which is a signal containing the initial attack. For the initial
release, the second pair subtracts an accurate envelope follower from one with
a slow release.

An envelope follower measures the mean square power of a signal over time
(see 3.audio.examples/H06.envelope.follower.pd for details on implementing an
envelope follower). To do this we must use a low pass filter at a very low
frequency. In order to achieve an accurate follower a linear phase FIR filter
was used (using IEM's FIR~ external). Unfortunately this introduces a phase
delay.

In order to facilitate the use of different envelope follower implementations,
transdetect~ requires a filter type as a creation argument implemented in
followernameTransDetectEF~.pd. 4 linear phase fir implementations are provided:
181, 251, 451 and 501 taps filters. The 501 taps filter provides the most
accurate filter but with a phase delay of 5.668 ms at 44.1kHz (raise the
sampling rate to lower the phase delay). They were all generating using
http://www.dsptutor.freeuk.com/FIRFilterDesign/FIRFiltDes102.html with a
cutoff frequency between 5 and 10 Hz.

A compromise between accuracy and phase delay might be achieved by using
minimum phase FIR filters. A 5th implementation using PD's native lop~ object
is also provided under the designation iir (FIR~ not required).

Along with different possible envelope follower implementation transdetect~
also requires an attack and hold type implemented in
attacknameTransDetectAttackShape~.pd and holdnameTransDetectHoldShape~.pd
respectively. These implementations dictate the kind of attack and release
curves used on the envelope followers (linear, slow[er|est] and fast[er|est]).
All implementations provided use fexpr~. A more efficient external could be
made to take fexpr~ place.

02 Use

In help-transcomp~.pd patch enable start and pay attention to the snap in the
hit. Disable the green toggle button to disable the compression make the snap
go away. Check out the tables on the left to see the results of the transient
compression.

transcomp~ is useful when used with recorded drums to maximize or minimize
its transient (to make it punchier or to make snare drums less clappy).

transcomp~ uses transdetect~. By itself transdetect~ can be used to synthesis
hits from a recording. For example, take a bass drum recording and use the
signals generated by transdetect~ to shape the frequency and envelope of a
synthesized kick drum.

Would love to have some feedback and some help in turning the linear phase filters into minimum phase filters.

http://www.pdpatchrepo.info/hurleur/transdetect.rar

Hello!

I just came from a 4 day workshop about PD. I liked it so much that I already bought arduino, a couple of sensors and a webcam.
Anyway I was working on college computers and everything was ready to use, but now I installed it on my pc and I can't read wave files from it.

The error is:
"signal outlet connect to nonsignal inlet", and it happens every time I try to play a .wav file, when I select "compute audio" on console, when I select "Audio on", and every time I touch on "audio settings" or "ASIO".
I run the "test audio and MIDI" and I can hear both test signals. I've tried using some example patches in the 3.audio.examples folder and I could hear pc sounds.
Happens either I use GEM or not.

I made a file that has a .wav and I'm using the webcam as motion sensor to change the sound pitch. As I try to play the .wav, the console shows that error.
The .wav file is in the same folder as the PD file ofc.

I searched the forum and google for solutions:
@Thor said:

Go to Preferences > Audio Settings
then choose your built-in-audio or whatever device you use
I have noticed that when I use my isight with GEM, PD sometimes defaults to use it as input AND output (!)
try that and I bet you will be ok

=didnt work

@nickj said:

If you have a camera plugged in (ichat) , go into preferences -> audio settings then untick the input (isight) device 1.

=didnt work - dont have ichat cam but still I checked if it had any sound input and it doesnt.

@http://en.flossmanuals.net/PureData/TroubleShooting said:

I get the message "error: signal outlet connect to nonsignal inlet (ignored)" when I open a patch.

This error tends to go with the previous error "I get the message '... couldn't create' when I open a patch...". Often this error means that an object has failed to create, usually because it uses an External Object which is not available in the current installation or configuration of PD. PD will preserve the location and connections of an object which fails to create, but it will not function. You can use the "Find last error" function under the "Find" menu to track down which objects caused errors. PD will treat uncreated objects as Dataflow Objects even if they were originally Audio Objects, so this error will follow the previous one. Please see the relevant sections in the "Configuring PD" chapter for information about setting the "Path" and "Startup" options. If the External is not available in PD Extended, you may need to install it yourself.

now I ran out of ideas and just decided to ask...

I have:

• Pd-0.40.3-extended
• Win XP SP2
• Vimicro USB pc cam (VC0305)
• Realtek AC'97 Audio

If anyone can help, thx in advance.