diff --git a/.lefthook.yml b/.lefthook.yml
index 963c932..0e8d8df 100644
--- a/.lefthook.yml
+++ b/.lefthook.yml
@@ -9,4 +9,4 @@ pre-commit:
       run: bunx prettier --check {staged_files}
     tsc:
       glob: '*.{js,ts}'
-      run: bunx tsc -b
+      run: bunx tsc-files --noEmit {staged_files}
diff --git a/bun.lockb b/bun.lockb
index d18886f..f3f56df 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index da71917..882f0f0 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,7 @@
     "prettier": "^3.1.1",
     "rollup": "^3.19.1",
     "semantic-release": "^21.0.1",
+    "tsc-files": "^1.1.4",
     "typescript": "^4.9.5"
   },
   "workspaces": [
diff --git a/packages/launchcontrol-common/src/page/fxParam.ts b/packages/launchcontrol-common/src/page/fxParam.ts
index 036dbc5..2f0f6b4 100644
--- a/packages/launchcontrol-common/src/page/fxParam.ts
+++ b/packages/launchcontrol-common/src/page/fxParam.ts
@@ -8,6 +8,7 @@ import {
   root,
   setValue,
 } from '@mixxx-launch/mixxx/src/Control'
+import { absoluteLin } from '@mixxx-launch/mixxx/src/util'
 import { LaunchControlDevice, MidiComponent } from '../device'
 
 export const makeFxParamPage = (_conf: FxParamPageConf, template: number, device: LaunchControlDevice) =>
@@ -122,7 +123,7 @@ export class FxParamPage extends Component {
 }
 
 const toEffectKnobRange = (value: number) => {
-  return value / 63.5 - 1
+  return absoluteLin(value, 0, 1)
 }
 
 class FxComponent extends Component {
diff --git a/packages/mixxx/src/util.ts b/packages/mixxx/src/util.ts
index 8b04c23..9781d43 100644
--- a/packages/mixxx/src/util.ts
+++ b/packages/mixxx/src/util.ts
@@ -1,14 +1,5 @@
 export type Action<T> = (t: T) => void
 
-/* -------- ------------------------------------------------------
-            absoluteNonLin
-   Purpose: Maps an absolute linear control value to a non-linear Mixxx control
-            value (like EQs: 0..1..4)
-   Input:   Control value (e.g. a knob,) MixxxControl values for the lowest,
-            middle, and highest points, lowest knob value, highest knob value
-            (Default knob values are standard MIDI 0..127)
-   Output:  MixxxControl value corresponding to the knob position
-   -------- ------------------------------------------------------ */
 export const absoluteNonLin = (
   value: number,
   low: number,
@@ -26,3 +17,6 @@ export const absoluteNonLin = (
     return mid + (value - center) / (center / (high - mid))
   }
 }
+
+export const absoluteLin = (value: number, low: number, high: number, min: number = 0, max: number = 127) =>
+  ((high - low) / (max - min)) * (value - min) + low