Merge pull request #194 from tv2/feat/metering-midas-integrationtime

fix: Midas metering convert dB to Lin
tv2 · Nov 11, 2021 · 5a2aa8b · 5a2aa8b
2 parents 6c74489 + cc26cc7
commit 5a2aa8b
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/server/utils/mixerConnections/productSpecific/midas.ts b/server/utils/mixerConnections/productSpecific/midas.ts
@@ -1,6 +1,10 @@
 import { state } from '../../../reducers/store'
 import { sendVuLevel, VuType } from '../../vuServer'
 
+const calcVuLevel = (level: number) => {
+    return Math.log(level) / Math.log(600) + 1
+}
+
 export const midasMeter = (mixerIndex: number, message: any) => {
     const DATA_OFFSET = 4
     let uint8bytes = Uint8Array.from(message[0])
@@ -19,10 +23,9 @@ export const midasMeter = (mixerIndex: number, message: any) => {
             assignedFader >= 0 &&
             assignedFader < state.settings[0].numberOfFaders
         ) {
-            level = dataview.getFloat32(4 * i + DATA_OFFSET, true)
-            reductionLevel = dataview.getFloat32(
-                4 * (i + 64) + DATA_OFFSET,
-                true
+            level = calcVuLevel(dataview.getFloat32(4 * i + DATA_OFFSET, true))
+            reductionLevel = calcVuLevel(
+                dataview.getFloat32(4 * (i + 64) + DATA_OFFSET, true)
             )
             let vuIndex: number = state.faders[0].fader[
                 assignedFader