Fix exponential smoothing calculation

Eliastik · Mar 4, 2024 · 9ab87c3 · 9ab87c3
1 parent 3172754
commit 9ab87c3
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Showing 6 changed files with 8 additions and 8 deletions.
diff --git a/dist/cjs/SimpleSoundStudioLibrary.js b/dist/cjs/SimpleSoundStudioLibrary.js
diff --git a/dist/cjs/SimpleSoundStudioLibrary.js.map b/dist/cjs/SimpleSoundStudioLibrary.js.map
diff --git a/dist/esm/SimpleSoundStudioLibrary.js b/dist/esm/SimpleSoundStudioLibrary.js
diff --git a/dist/esm/SimpleSoundStudioLibrary.js.map b/dist/esm/SimpleSoundStudioLibrary.js.map
diff --git a/lib/filters/PassThroughFilter.ts b/lib/filters/PassThroughFilter.ts
@@ -65,9 +65,9 @@ export default class PassThroughFilter extends AbstractAudioFilterWorklet<PassTh
             return;
         }
 
-        if (this.eventEmitter && timeDifferenceSamplePerSecond >= 1000) {
-            this.calculateSmoothedSamplePerSecond(timeDifferenceSamplePerSecond, samplesProcessed);
+        this.calculateSmoothedSamplePerSecond(timeDifferenceSamplePerSecond, samplesProcessed);
 
+        if (this.eventEmitter && timeDifferenceSamplePerSecond >= 1000) {
             const remainingTimeSeconds = remainingSamples / this.samplePerSecond;
 
             this.currentTimeSamplesPerSecond = currentTime;
@@ -90,7 +90,7 @@ export default class PassThroughFilter extends AbstractAudioFilterWorklet<PassTh
     private calculateSmoothedSamplePerSecond(timeDifferenceSamplePerSecond: number, samplesProcessed: number): void {
         if (timeDifferenceSamplePerSecond > 0) {
             const currentSampleRate = (samplesProcessed - this.lastSampleCount) / (timeDifferenceSamplePerSecond / 1000);
-            this.samplePerSecond = Constants.TREATMENT_TIME_COUNTING_SMOOTHING_FACTOR * this.samplePerSecond + (1 - Constants.TREATMENT_TIME_COUNTING_SMOOTHING_FACTOR) * currentSampleRate;
+            this.samplePerSecond = (Constants.TREATMENT_TIME_COUNTING_SMOOTHING_FACTOR * currentSampleRate) + ((1 - Constants.TREATMENT_TIME_COUNTING_SMOOTHING_FACTOR) * this.samplePerSecond);
         }
     }
 

diff --git a/lib/model/Constants.ts b/lib/model/Constants.ts
@@ -62,7 +62,7 @@ const Constants = {
     VALID_SAMPLE_RATES: [0, 8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200, 96000, 176400, 192000],
     // Interval used by the treatment percent counter. The event will be dispatched each ms defined here
     TREATMENT_TIME_COUNTING_THROTTLE_INTERVAL: 100,
-    TREATMENT_TIME_COUNTING_SMOOTHING_FACTOR: 0.005
+    TREATMENT_TIME_COUNTING_SMOOTHING_FACTOR: 0.5
 };
 
 export default Constants;