{"id":1138,"date":"2018-02-27T15:02:27","date_gmt":"2018-02-27T23:02:27","guid":{"rendered":"http:\/\/tre.ucsd.edu\/wordpress\/?p=1138"},"modified":"2018-02-28T10:31:42","modified_gmt":"2018-02-28T18:31:42","slug":"granular-patches","status":"publish","type":"post","link":"https:\/\/tre.ucsd.edu\/wordpress\/?p=1138","title":{"rendered":"MUS271A (Max w8) – granular patches"},"content":{"rendered":"

Here are all the patches for this topic:\u00a006-granular<\/a><\/p>\n

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\"Screen<\/a>1) this first patch demonstrates basic granular synthesis using the poly~ object and metro. “note” is prepended to the message sent to poly~ as it is typically used for polyphony.<\/p>\n

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\"Screen<\/a>the sine grain abstraction is a random pitch sine wave generation with a raised cosine envelope. to turn a cosine into an envelope\/window, one must invert it, cut the amplitude by 1\/2 and shift it up by 1\/2 so that it starts at 0, goes up to 1, and ends at zero. this inverted and shifted cosine is known as a raised cosine window.<\/p>\n

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\"Screen<\/a>2) this example adds 2 operator FM synthesis to a granular framework. the external patch is almost identical to the previous example except that more parameters are packed together and sent to the poly~ object.<\/p>\n

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\"Screen<\/a>the “grain” abstraction is similar to the previous example except that for each grain a random ratio and index is generated and given to a small fm2op abstraction (below).<\/p>\n

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\"Screen<\/a>\"Screen<\/a>3) the third example is a granular harmonic oscillator in which each grain generates a random harmonic of the base pitch.<\/p>\n

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The abstraction is almost identical to the original sine example except that an additional random object is added to create the harmonic frequency multiplier.<\/p>\n

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\"Screen<\/a>\"Screen<\/a>4) The final example is a granular sound file player which randomizes the playback start position. A slider in the main patch is used to set the original start position. The sound needs to be loaded with the “replace” message before this patch will work.<\/p>\n

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The playback abstraction requires a little more logic to derive the playback start, end and time from the pitch and position parameters in the main patch.<\/p>\n","protected":false},"excerpt":{"rendered":"

Here are all the patches for this topic:\u00a006-granular   1) this first patch demonstrates basic granular synthesis using the poly~ object and metro. “note” is prepended to the message sent to poly~ as it is typically used for polyphony.   … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22],"tags":[],"_links":{"self":[{"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1138"}],"collection":[{"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1138"}],"version-history":[{"count":7,"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1138\/revisions"}],"predecessor-version":[{"id":1176,"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/1138\/revisions\/1176"}],"wp:attachment":[{"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tre.ucsd.edu\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}