file IO with OSC

[hanez]

hello,

recently i was doing some "chuck research" using the new UAna's. the goal was to develop an audio-to-midi translator to trigger my synths with the microphone (my voice). Just for the chucking fun of it. I used the spectral flux for note-on detection, but at the beginning i had no idea how the spectral flux of may voice looked like, i.e. when i bellow a bass line into the mic. So i was confronted with the problem to get the spectral flux data out of chuck to analyse it with a different program (i use matlab for this). as far as i know there is still no file input/output functionality in chuck.
That's why i coded (in C++, using MS Visual Studio 2005, release build) a small utility that can receive data from chuck and save it into a ASCII textfile and it also can load such a file and send it to chuck using the OSC protocol. So with it you can analyse (plot, make calculations with it, show it your girlfriend) data generated by chuck, you can make a preset management for your chuckmachines and you can feed them with external data.
I thought, i will share this here, because maybe some other chuckchuckers also needs this functionality. So here it is. WinXP only, sorry.
Download it, read the readme, test it with the two examples "testInput.ck", "testOutput.ck". You have to adapt these two files, read the comments.
I also included the source code for those who want to improve it. To do so you also need the oscpack library, described in the readme.
(I don't know if there are additional microsoft-specific dll's (msvcrt.dll?) or other files necessary to run the .exe. If so they should be available on the net).
Of course, if this chucky software chucks down your computer into chuckhell - i take no chucking responsibility.

chucks,
hanez

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oscFileIO.zip
Description:	utility for file IO	Download (listen)
Filename:	oscFileIO.zip
Filesize:	22.56 KB
Downloaded:	330 Time(s)

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[kijjaz]

Oh.. wow! thanks for this valuable contribution, i hope this can grow into a very useful tool for various applications someday!

[chuckles]

I haven't tried it yet (my main music machine is still running Windows 2000, believe it or not) but I just wanted to come in and really encourage this kind of work.

I have ideas for chuck that need the orchestra/score separation a la Csound (and other MusicN languages) where I can create a single orchestra and feed it all kinds of different data files (perhaps even MIDI, eventually) to create different pieces with given sound generation algorithms. So this is exciting to me even if I have to plug in some other libraries/dlls.

[Inventor]

I would use your contribution to send out the text that generates POV-Ray animations if it ran on a Mac. Maybe the ChucK developers can plug your code into ChucK to add the functionality. Anyway it is nice to see the contributions and collaborations that are happening here.

[hanez]

[eduard]

Here's a makefile for compiling fileToOsc on unixes like OS.
You should create a directory called src where you should put the oscToFile* files and another for oscpack.
However when run on OS X I get the following error ( i think there should be easier test examples so the problem is easier to track):

In one terminal I run: oscToFile 9000 while in another terminal I run chuck testInput.ck testOutput.ck.
The output in terminal 1 is:
listening for input on port 9000...
press ctrl-c to end
/oscFromFile
fileName: sinusParam.dat
formatString: sf
hostToSend: localhost
portToSend: 1092550656
bufsize: 262144
terminate called after throwing an instance of 'std::runtime_error'
what(): unable to connect udp socket

Abort trap


The output in the terminal 2:
[chuck](VM): removing shred: 3 (spork~exp)...
values: 0.000000 0.000000


Here's the makefile:

PROGRAM = osc2File
CXX = g++
ENDIANESS=OSC_HOST_BIG_ENDIAN
CXX_FLAGS = -g -Wall -D$(ENDIANESS)
OSC_DIR=./oscpack
INCLUDE= -I$(OSC_DIR)
SRC_DIR = src
SRC_FILES= $(SRC_DIR)/oscToFile.cpp $(OSC_DIR)/osc/OscTypes.cpp\
$(OSC_DIR)/osc/OscReceivedElements.cpp $(OSC_DIR)/osc/OscPrintReceivedElements.cpp\
$(OSC_DIR)/osc/OscOutboundPacketStream.cpp $(OSC_DIR)/ip/posix/NetworkingUtils.cpp\
$(OSC_DIR)/ip/posix/UdpSocket.cpp $(OSC_DIR)/ip/IpEndpointName.cpp

OBJS = $(SRC_FILES:.cpp=.o)

all: $(PROGRAM) $(OBJS)

$(PROGRAM): $(OBJS)
$(CXX) $(CXX_FLAGS) $(INCLUDE) -o $(PROGRAM) $(SRC_DIR)/oscToFileMain.cpp $(OBJS)

.cpp.o:
$(CXX) -c $(CXX_FLAGS) $(INCLUDE) -o "$@" "$<"


clean:
-rm $(OBJS)

distclean: clean
-rm $(PROGRAM)

[eduard]

There was a problem with the endianess. I had declared it as BIG_ENDIAN but I'm on a LITTLE_ENDIAN machine.
So if you are on a Unix like system you may want to try it out.

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oscToFile.zip
Description:		Download (listen)
Filename:	oscToFile.zip
Filesize:	87.46 KB
Downloaded:	310 Time(s)

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