Add orx-minim

2022-03-15 21:26:44 +01:00
parent 1bf7abbb96
commit 702af453e4
5 changed files with 94 additions and 0 deletions
--- a/orx-jvm/orx-minim/src/demo/kotlin/DemoFFT01.kt
+++ b/orx-jvm/orx-minim/src/demo/kotlin/DemoFFT01.kt
@@ -0,0 +1,31 @@
+import ddf.minim.Minim
+import ddf.minim.analysis.FFT
+import ddf.minim.analysis.LanczosWindow
+
+import org.openrndr.application
+import org.openrndr.extra.minim.minim
+import org.openrndr.math.map
+import kotlin.math.ln
+
+fun main() {
+    application {
+        configure {
+            width = 1280
+            height = 720
+        }
+
+        program {
+            val minim = minim()
+            val lineIn = minim.getLineIn(Minim.MONO, 2048, 48000f)
+            val fft = FFT(lineIn.bufferSize(), lineIn.sampleRate())
+            fft.window(LanczosWindow())
+            extend {
+                fft.forward(lineIn.mix)
+                for (i in 0 until 200) {
+                    val bandDB = 20.0 * ln(2.0 * fft.getBand(i) / fft.timeSize())
+                    drawer.rectangle(i * 5.0, height / 2.0, 5.0, bandDB.map(0.0, -150.0, 0.0, -height / 8.0))
+                }
+            }
+        }
+    }
+}