{"id":1501,"date":"2019-03-20T19:10:28","date_gmt":"2019-03-20T13:40:28","guid":{"rendered":"https:\/\/www.rangakrish.com\/?p=1501"},"modified":"2019-03-20T19:27:29","modified_gmt":"2019-03-20T13:57:29","slug":"controlling-reaktor-from-opusmodus-using-osc","status":"publish","type":"post","link":"https:\/\/www.rangakrish.com\/index.php\/2019\/03\/20\/controlling-reaktor-from-opusmodus-using-osc\/","title":{"rendered":"Controlling Reaktor from Opusmodus Using OSC"},"content":{"rendered":"

I am a great fan of Opusmodus<\/strong><\/em><\/a>\u00a0software. I have written many articles about it in the past. Owing to my several other commitments, I am not able to spend much time on it these days, but I keep checking the features in new releases regularly. The software has evolved substantially since its first release a few years ago.<\/p>\n

One of the nice feature additions in the latest 1.3<\/strong><\/em> release is support for Open Sound Control (OSC)<\/strong><\/em><\/a>. This is something I have been waiting for a long time, so I decided to check it out immediately.<\/p>\n

In an earlier article<\/strong><\/em><\/a>, I showed how it is possible to configure Reaktor<\/strong><\/em><\/a>\u00a0as a OSC<\/strong> receiver. For that example, I used Chuck<\/strong><\/em><\/a>\u00a0programming language to send OSC<\/strong> commands to Reaktor<\/strong>. Today, I want to reconstruct the same Reaktor<\/strong> experiment, but using Opusmodus<\/strong>, instead of Chuck<\/strong>, to send OSC<\/strong> messages.<\/p>\n

Make sure you are running the latest release of Opusmodus<\/strong>. As of this writing, the latest version is 1.3.24692<\/strong>.<\/p>\n

First, we launch Reaktor 6<\/strong>, and create a new Sine<\/strong><\/em> oscillator with Pitch<\/strong><\/em> and Amplitude<\/strong><\/em> controllers. The output can be connected to the default output channels. See the following figure:<\/p>\n

\"A<\/a>
A Simple Sine Oscillator<\/strong><\/figcaption><\/figure>\n

Next, we should configure the Pitch<\/strong> and Amplitude<\/strong> controllers to receive OSC<\/strong> messages. Whatever name we use here must be the same as the one we use in Opusmodus<\/strong>. We choose the name \u201cpitch\u201d<\/strong><\/em> for the Pitch<\/strong> controller and \u201campl\u201d<\/strong><\/em> for the Amplitude<\/strong><\/em> controller.<\/p>\n

\"Setting<\/a>
Setting Up OSC Address<\/strong><\/figcaption><\/figure>\n

Now that Reaktor<\/strong><\/em> has been setup, we can run Opusmodus<\/strong><\/em> and send OSC<\/strong> messages. Here is a very short code fragment that illustrates the idea:<\/p>\n

\"Sending<\/a>
Sending OSC Messages<\/strong><\/figcaption><\/figure>\n

The actual function that transmits the messages is \u201cosc-thread\u201d<\/strong><\/em>. The first argument to the function is the destination address: IP<\/strong><\/em>\u00a0address and Port<\/strong><\/em> number. The second argument is the OSC<\/strong> address of the receiving controller (make sure the name matches that in Reaktor<\/strong><\/em>). The last argument is the actual data to be transmitted to the recipient. It is a series of <value><\/strong><\/em> and <time><\/strong><\/em> pairs.<\/p>\n

The \u201cosc-thread\u201d<\/strong><\/em> function returns a Thread<\/strong><\/em> object. We save this in a variable so that we can stop the thread if needed. The created thread runs independent of other threads. In our case, we have created two threads to take care of Pitch<\/strong><\/em> and Amplitude<\/strong><\/em> controls in Reaktor<\/strong><\/em>.<\/p>\n

In this example, I have hardcoded the data values to be sent to Reaktor. In practice, this data is likely to be generated algorithmically elsewhere. Opusmodus<\/strong><\/em> has a rich set of functions to do this. Here is another code fragment that uses “gen-osc-data”<\/strong><\/em> to get the data in the required format before sending to the target:<\/p>\n

\"Using<\/a>
Using “gen-osc-data” Function<\/strong><\/figcaption><\/figure>\n

You can see the data being received by Reaktor<\/strong><\/em>:<\/p>\n

\"Monitoring<\/a>
Monitoring OSC Messages<\/strong><\/figcaption><\/figure>\n

That is it. Quite straightforward, isn’t it? What I have demonstrated in this example is an extremely simplified situation. It is possible to setup more complex ensembles in Reaktor<\/strong><\/em> and control them from Opusmodus<\/strong><\/em> using OSC<\/strong><\/em>. But the idea is the same. If time permits, I will discuss more interesting examples in the future.<\/p>\n

I would like to thank Janusz Podrazik, the creator of Opusmodus<\/strong><\/em>, for developing such a nice environment for music composition, and more importantly for his great support!<\/p>\n

Have a nice day!<\/p>\n","protected":false},"excerpt":{"rendered":"

I am a great fan of Opusmodus\u00a0software. I have written many articles about it in the past. Owing to my several other commitments, I am not able to spend much time on it these days, but I keep checking the features in new releases regularly. The software has evolved substantially since its first release a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18,5,17],"tags":[198,37,199],"class_list":["post-1501","post","type-post","status-publish","format-standard","hentry","category-lisp","category-music","category-programming","tag-open-sound-control","tag-opusmodus","tag-osc"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9OLnF-od","jetpack-related-posts":[{"id":5,"url":"https:\/\/www.rangakrish.com\/index.php\/2015\/09\/22\/using-reaktor-6-as-a-osc-receiver\/","url_meta":{"origin":1501,"position":0},"title":"Using Reaktor 6 as a OSC Receiver","author":"admin","date":"September 22, 2015","format":false,"excerpt":"Open Sound Control (OSC) is a successor to MIDI and facilitates more flexible communication between software and multimedia devices. In this example, we will configure Reaktor to act as a receiver of OSC messages. Launch Reaktor. First we have to make sure that OSC is enabled. For this, select \u201cFile>OSC\u2026","rel":"","context":"In "Music"","block_context":{"text":"Music","link":"https:\/\/www.rangakrish.com\/index.php\/category\/music\/"},"img":{"alt_text":"Reaktor 6 OSC Settings","src":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2015\/09\/OSC-Settings2.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":124,"url":"https:\/\/www.rangakrish.com\/index.php\/2016\/01\/08\/how-to-use-reaktor-with-opusmodus\/","url_meta":{"origin":1501,"position":1},"title":"How to Use Reaktor with Opusmodus","author":"admin","date":"January 8, 2016","format":false,"excerpt":"For those of you who do not know about Opusmodus (OM), it is a very powerful and flexible algorithmic music composition environment built in Lisp. It is available for the Mac. 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I had downloaded the library some time ago, but could not spend much time since my primary focus\u2026","rel":"","context":"In "LISP"","block_context":{"text":"LISP","link":"https:\/\/www.rangakrish.com\/index.php\/category\/lisp\/"},"img":{"alt_text":"Simple Java Program","src":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2020\/12\/java-2-300x142.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2020\/12\/java-2-300x142.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2020\/12\/java-2-300x142.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":140,"url":"https:\/\/www.rangakrish.com\/index.php\/2016\/02\/06\/organum-in-music\/","url_meta":{"origin":1501,"position":3},"title":"Organum in Music","author":"admin","date":"February 6, 2016","format":false,"excerpt":"When two or more voices in a song follow the same rhythm and move by the same interval, thus causing a parallel motion of the voices, it is referred to as Organum. 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For\u2026","rel":"","context":"In "LISP"","block_context":{"text":"LISP","link":"https:\/\/www.rangakrish.com\/index.php\/category\/lisp\/"},"img":{"alt_text":"Single voice","src":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2016\/02\/Single-voice.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2016\/02\/Single-voice.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.rangakrish.com\/wp-content\/uploads\/2016\/02\/Single-voice.png?resize=525%2C300 1.5x"},"classes":[]},{"id":2206,"url":"https:\/\/www.rangakrish.com\/index.php\/2020\/11\/22\/a-library-for-algorithmic-music-composition\/","url_meta":{"origin":1501,"position":4},"title":"A Library for Algorithmic Music Composition","author":"admin","date":"November 22, 2020","format":false,"excerpt":"I have recently started implementing a library for algorithmic music composition. 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