Score score of timed OSC commands




Score encapsulates a list of timed OSC commands and provides some methods for using it, as well as support for the creation of binary OSC files for non-realtime synthesis. See Non-Realtime-Synthesis for more details.


The list should be in the following format, with times in ascending order. Bundles are okay.


[

[beat1, [OSCcmd1]],

[beat2, [OSCcmd2], [OSCcmd3]],

...

[beat_n, [OSCcmdn]],

[beatToEndNRT, [\c_set, 0, 0]] // finish

]


For NRT synthesis the final event should a dummy event, after which synthesis will cease. It is thus important that this event be timed to allow previous events to complete.


Score scheduling defaults to TempoClock. A setting of TempoClock.default.tempo = 1 (60 beats per minute), may be used to express score events in seconds if desired.





Class Methods


*new(list) - returns a new Score object with the supplied list. list can be an Array, a List, or similar object.


*newFromFile(path) - as *new, but reads the list in from a text file. path is a string indicating the path of the file. The file must contain a valid SC expression.


*play(list, server) - as *new but immediately plays it. (See also the instance method below.) If no value is supplied for server it will play on the default Server.


*playFromFile(path, server) - as *play, but reads the list from a file.


*write(list, oscFilePath, clock) - a convenience method to create a binary OSC file for NRT synthesis. Does not create an instance. oscFilePath is a string containing the desired path of the OSC file. Use clock as a tempo base. TempoClock.default if clock is nil.


*writeFromFile(path, oscFilePath, clock) - as *write but reads the list from a file. Use clock as a tempo base.  TempoClock.default if clock is nil.


*recordNRT(list, oscFilePath, outputFilePath, inputFilePath, sampleRate, headerFormat, sampleFormat, options) - a convenience method to synthesize list in non-realtime. This method writes an OSC file to oscFilePath (you have to do your own cleanup if desired) and then starts a server app to synthesize it. For details on valid headerFormats and sampleFormats see SoundFile. Use TempoClock.default as a tempo base. Does not return an instance.

oscFilePath - the path to which the binary OSC file will be written.

outputFilePath - the path of the resultant soundfile.

inputFilePath - an optional path for an input soundfile.

sampleRate - the sample rate at which synthesis will occur.

headerFormat - the header format of the output file. The default is 'AIFF'.

sampleFormat - the sample format of the output file. The default is 'int16'.

options - an instance of ServerOptions. If not supplied the options of the default Server will be used.


Instance Methods


play(server, clock, quant) - play the list on server use clock as a tempo base and quantize start time to quant. If server is nil, then on the default server. TempoClock.default if clock is nil. now if quant is 0.


stop - stop playing.


write(oscFilePath, clock) - create a binary OSC file for NRT synthesis from the list. Use clock as a tempo base. TempoClock.default if clock is nil.


score - get the list.


score_(list) - set the list.


add(bundle) - adds bundle to the list.


sort - sort the score time order. 

This is recommended to do before recordNRT or write when 

you are not sure about the packet order


recordNRT(oscFilePath, outputFilePath, inputFilePath, sampleRate, headerFormat, sampleFormat, options) - synthesize the score in non-realtime. For details of the arguments see *recordNRT above.


saveToFile(path) - save the score list as a text file to path.




NRT Examples:


// A sample synthDef

(

SynthDef("helpscore",{ arg freq = 440;

Out.ar(0,

SinOsc.ar(freq, 0, 0.2) * Line.kr(1, 0, 0.5, doneAction: 2)

)

}).load(s);

)


// write a sample file for testing

(

var f, g;

TempoClock.default.tempo = 1;

g = [

[0.1, [\s_new, \helpscore, 1000, 0, 0, \freq, 440]], [0.2, [\s_new, \helpscore, 1001, 0, 0, \freq, 660]],

[0.3, [\s_new, \helpscore, 1002, 0, 0, \freq, 220]],

[1, [\c_set, 0, 0]] // finish

];

f = File("score-test","w");

f.write(g.asCompileString);

f.close;

)


//convert it to a binary OSC file for use with NRT

Score.writeFromFile("score-test", "test.osc");


From the command line, the file can then be rendered from within the build directory:


./scsynth -N test.osc _ test.aif 44100 AIFF int16 -o 1 


Score also provides methods to do all this more directly:


(

var f, o;

g = [

[0.1, [\s_new, \helpscore, 1000, 0, 0, \freq, 440]], [0.2, [\s_new, \helpscore, 1001, 0, 0, \freq, 660], 

[\s_new, \helpscore, 1002, 0, 0, \freq, 880]],

[0.3, [\s_new, \helpscore, 1003, 0, 0, \freq, 220]],

[1, [\c_set, 0, 0]] // finish

];

o = ServerOptions.new.numOutputBusChannels = 1; // mono output

Score.recordNRT(g, "help-oscFile", "helpNRT.aiff", options: o); // synthesize

)





Real-time Examples:


s.boot; // boot the default server


// A sample synthDef

(

SynthDef("helpscore",{ arg freq = 440;

Out.ar(0,

SinOsc.ar(freq, 0, 0.2) * Line.kr(1, 0, 0.5, doneAction: 2)

)

}).load(s);

)


// write a sample file for testing

(

var f, g;

TempoClock.default.tempo = 1;

g = [

[0.1, [\s_new, \helpscore, 1000, 0, 0, \freq, 440]], [0.2, [\s_new, \helpscore, 1001, 0, 0, \freq, 660], 

[\s_new, \helpscore, 1002, 0, 0, \freq, 880]],

[0.3, [\s_new, \helpscore, 1003, 0, 0, \freq, 220]],

[1, [\c_set, 0, 0]] // finish

];

f = File("score-test","w");

f.write(g.asCompileString);

f.close;

)


z = Score.newFromFile("score-test");


// play it on the default server

z.play;


// change the list

(

x = [

[0.0, [ \s_new, \helpscore, 1000, 0, 0,  \freq, 1413 ]],

[0.1, [ \s_new, \helpscore, 1001, 0, 0,  \freq, 712 ]],

[0.2, [ \s_new, \helpscore, 1002, 0, 0,  \freq, 417 ]],

[0.3, [ \s_new, \helpscore, 1003, 0, 0,  \freq, 1238 ]],

[0.4, [ \s_new, \helpscore, 1004, 0, 0,  \freq, 996 ]],

[0.5, [ \s_new, \helpscore, 1005, 0, 0,  \freq, 1320 ]],

[0.6, [ \s_new, \helpscore, 1006, 0, 0,  \freq, 864 ]],

[0.7, [ \s_new, \helpscore, 1007, 0, 0,  \freq, 1033 ]],

[0.8, [ \s_new, \helpscore, 1008, 0, 0,  \freq, 1693 ]],

[0.9, [ \s_new, \helpscore, 1009, 0, 0,  \freq, 410 ]],

[1.0, [ \s_new, \helpscore, 1010, 0, 0,  \freq, 1349 ]],

[1.1, [ \s_new, \helpscore, 1011, 0, 0,  \freq, 1449 ]],

[1.2, [ \s_new, \helpscore, 1012, 0, 0,  \freq, 1603 ]],

[1.3, [ \s_new, \helpscore, 1013, 0, 0,  \freq, 333 ]],

[1.4, [ \s_new, \helpscore, 1014, 0, 0,  \freq, 678 ]],

[1.5, [ \s_new, \helpscore, 1015, 0, 0,  \freq, 503 ]],

[1.6, [ \s_new, \helpscore, 1016, 0, 0,  \freq, 820 ]],

[1.7, [ \s_new, \helpscore, 1017, 0, 0,  \freq, 1599 ]],

[1.8, [ \s_new, \helpscore, 1018, 0, 0,  \freq, 968 ]],

[1.9, [ \s_new, \helpscore, 1019, 0, 0,  \freq, 1347 ]],

[2.0, [\c_set, 0, 0]] // finish

];


z.score_(x);

)


// play it

z.play;


// play and stop after one second

(

z.play;

SystemClock.sched(1.0, {z.stop;});

)





creating Score from a pattern



SynthDescLib.read;



// new pattern

(

p = Pbind(

\dur, Prand([0.3, 0.5], inf),

\freq, Prand([200, 300, 500],inf)

);

)


// make a score from the pattern, 4 beats long

z = p.asScore(4.0);


z.score.postcs;

z.play;





rendering a pattern to sound file directly:


// render the pattern to aiff (4 beats)


p.render("asScore-Help.aif", 4.0);






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