[Audio] IntelliGainComp

src/renderer/audio/audio.js

@@ -10,6 +10,7 @@ const CiderAudio = {
         llpw: null,
         analogWarmth: null,
         recorderNode: null,
+        intelliGainComp: null,
     },
     ccON: false,
     mediaRecorder: null,
@@ -37,7 +38,9 @@ const CiderAudio = {
                     audioBands: null,
                     vibrantbassNode: null,
                     llpw: null,
-                    analogWarmth: null
+                    analogWarmth: null,
+                    recorderNode: null,
+                    intelliGainComp: null,
                 }
             } catch (e) { }
             CiderAudio.source.connect(CiderAudio.context.destination);
@@ -51,7 +54,9 @@ const CiderAudio = {
             CiderAudio.source = CiderAudio.context.createMediaElementSource(mediaElem);
         } else { try { CiderAudio.source.disconnect(CiderAudio.context.destination) } catch (e) { } }
         CiderAudio.audioNodes.gainNode = CiderAudio.context.createGain()
-        CiderAudio.source.connect(CiderAudio.audioNodes.gainNode);
+        CiderAudio.audioNodes.intelliGainComp = CiderAudio.context.createGain();
+        CiderAudio.source.connect(CiderAudio.audioNodes.intelliGainComp);
+        CiderAudio.audioNodes.intelliGainComp.connect(CiderAudio.audioNodes.gainNode);
         if (app.cfg.audio.normalization) {
             CiderAudio.normalizerOn()
         }
@@ -137,6 +142,48 @@ const CiderAudio = {
     spatialOff: function () {
         CiderAudio.hierarchical_loading();
     },
+    intelliGainComp_h0_0: function () {
+        let filters = []; const precisionHz = 12;
+        if (CiderAudio.audioNodes.audioBands !== null) {filters = filters.concat(CiderAudio.audioNodes.audioBands)}
+        if (CiderAudio.audioNodes.vibrantbassNode !== null) {filters = filters.concat(CiderAudio.audioNodes.vibrantbassNode)}
+        if (CiderAudio.audioNodes.llpw !== null && CiderAudio.audioNodes.llpw.length > 1) {filters = filters.concat(CiderAudio.audioNodes.llpw);}
+        if (!filters || filters.length === 0) {CiderAudio.audioNodes.intelliGainComp.gain.value = 1; return}     
+        filters.shift();
+        let steps = Math.ceil(96000 / precisionHz);
+        // Generate input array for getFrequencyResponse method
+        let frequencies = new Float32Array(steps);
+        for (let i = 0; i < steps; i++) {
+            frequencies[i] = (i + 1) * precisionHz;
+        }
+        // Here we will store combined amplitude response
+        let totalAmplitudeResp = new Float32Array(steps);
+        for (let i = 0; i < steps; i++) {
+            totalAmplitudeResp[i] = 1;
+        }
+        // Temporary container for every filter response
+        let amplitudeResp = new Float32Array(steps), phaseResp = new Float32Array(steps);
+        for (let i = filters.length - 1; i >= 0; i--) {
+            let filter = filters[i];
+            // Get filter response and convolve it with existing response
+            filter.getFrequencyResponse(frequencies, amplitudeResp, phaseResp);
+            for (let j = 0; j < steps; j++) {
+                totalAmplitudeResp[j] *= amplitudeResp[j];
+            }
+        }
+        // Find max gain
+        let maxGain = -120;
+        for (let i = 0; i < steps; i++) {
+            let gain = totalAmplitudeResp[i];
+            if (gain > maxGain)
+                maxGain = gain;
+        }
+        if (maxGain == -120) {maxGain = 1}
+        if (CiderAudio.audioNodes.llpw !== null && CiderAudio.audioNodes.llpw[0].buffer !== null) {maxGain = maxGain * 0.9440608762859234}
+        if (app.cfg.audio.maikiwiAudio.spatial === true) {maxGain = maxGain * 0.5956621435290105}
+        maxGain = Math.pow(10, (-1 * (20 * Math.log10(maxGain))) / 20).toFixed(4);
+        maxGain > 1.0 ? CiderAudio.audioNodes.intelliGainComp.gain.value = 1 : CiderAudio.audioNodes.intelliGainComp.gain.value = maxGain;
+        console.debug(`[Cider][Audio] IntelliGainComp: ${maxGain > 1.0 ? 0 : (20 * Math.log10(maxGain)).toFixed(2)} dB (${maxGain > 1.0 ? 1 : maxGain})`);
+    },
     sendAudio: function () {
         if (!CiderAudio.ccON) {
             CiderAudio.ccON = true
@@ -146,6 +193,7 @@ const CiderAudio = {
                     //     mimeType: 'audio/webm; codecs=opus'
                     // };
                     // var destnode = CiderAudio.context.createMediaStreamDestination();
+                    // CiderAudio.audioNodes.intelliGainComp.connect(CiderAudio.audioNodes.gainNode);
                     //            CiderAudio.audioNodes.gainNode.connect(destnode)
                     // CiderAudio.mediaRecorder = new MediaRecorder(destnode.stream, options);
                     // CiderAudio.mediaRecorder.start(1);
@@ -517,6 +565,7 @@ const CiderAudio = {
     hierarchical_unloading: function () {
         try { CiderAudio.audioNodes.spatialNode.output.disconnect(); } catch (e) { }
         try { CiderAudio.audioNodes.spatialNode.disconnect(); } catch (e) { }
+        try {CiderAudio.audioNodes.intelliGainComp.disconnect();} catch (e) { }
         try { CiderAudio.audioNodes.gainNode.disconnect(); } catch (e) { }
         try { for (var i of CiderAudio.audioNodes.analogWarmth) { i.disconnect(); } CiderAudio.audioNodes.analogWarmth = null } catch (e) { }
         try { for (var i of CiderAudio.audioNodes.llpw) { i.disconnect(); } CiderAudio.audioNodes.llpw = null } catch (e) { }
@@ -528,6 +577,7 @@ const CiderAudio = {
     },
     hierarchical_loading: function () {
         CiderAudio.hierarchical_unloading();
+        CiderAudio.audioNodes.intelliGainComp.connect(CiderAudio.audioNodes.gainNode);
 
         if (Math.max(...app.cfg.audio.equalizer.gain) != 0) {
             CiderAudio.equalizer(true, 0);
@@ -903,6 +953,7 @@ const CiderAudio = {
                 }
             }
         }
+        CiderAudio.intelliGainComp_h0_0();
         console.debug("[Cider][Audio] Finished hierarchical loading");
 
     },

src/renderer/main/vueapp.js

@@ -773,8 +773,8 @@ const app = new Vue({
                         }
                         numbers.shift()
                         let peak = Math.max(numbers[6], numbers[7]) / 32768.0
-                        let gain = Math.pow(10, ((-7.63 - (Math.log10(peak) * 20)) / 20))// EBU R 128 Compliant
+                        let gain = Math.pow(10, ((-2 - (Math.log10(peak) * 20)) / 20))// EBU R 128 Compliant
-                        console.debug(`[Cider][MaikiwiSoundCheck] Peak Gain: '${Math.log10(peak) * 20}' dB | Adjusting '${Math.log10(gain) * 20}' dB`)
+                        console.debug(`[Cider][MaikiwiSoundCheck] Peak Gain: '${(Math.log10(peak) * 20).toFixed(2)}' dB | Adjusting '${(Math.log10(gain) * 20).toFixed(2)}' dB`)
                         try {
                             //CiderAudio.audioNodes.gainNode.gain.value = (Math.min(Math.pow(10, (replaygain.gain / 20)), (1 / replaygain.peak)))
                             CiderAudio.audioNodes.gainNode.gain.value = gain
@@ -3857,23 +3857,6 @@ const app = new Vue({
                 element.onclick = app.LastFMDeauthorize;
             });
         },
-        /**
-         parseSCTagToRG: function (tag) {
-            let soundcheck = tag.split(" ")
-            let numbers = []
-            for (item of soundcheck) {
-                numbers.push(parseInt(item, 16))
-
-            }
-            numbers.shift()
-            //let gain = Math.log10((Math.max(numbers[0], numbers[1]) ?? 1000) / 1000.0) * -10
-            let peak = Math.max(numbers[6], numbers[7]) / 32768.0
-            let gain = Math.pow(10, ((-7.63 - (Math.log10(peak) * 20)) / 20))// EBU R 128 Compliant
-            return {
-                gain: gain,
-                peak: peak
-            }
-        },*/
         fullscreen(flag) {
             if (flag) {
                 ipcRenderer.send('setFullScreen', true);

src/renderer/views/components/equalizer.ejs

@@ -298,7 +298,7 @@
                     try {
                     for (var i = 0; i < 21; i++) {
                     CiderAudio.audioNodes.vibrantbassNode[i].gain.value = app.cfg.audio.maikiwiAudio.vibrantBass.gain[i] * (app.cfg.audio.equalizer.vibrantBass / 10);
-                    }}
+                    CiderAudio.intelliGainComp_h0_0();}}                   
                     catch(e) {
                         CiderAudio.hierarchical_loading();
                     }
@@ -314,12 +314,14 @@
                         for (var i = 0; i < 10; i++) {
                         CiderAudio.audioNodes.audioBands[i].gain.value = app.cfg.audio.equalizer.gain[i] * app.cfg.audio.equalizer.mix
                         }
+                        CiderAudio.intelliGainComp_h0_0();
                     } catch(e) {CiderAudio.hierarchical_loading(); }
                 }
             },
             changeGain(i) {
                 if (Math.max(...app.cfg.audio.equalizer.gain) != 0) {
-                    try {CiderAudio.audioNodes.audioBands[i].gain.value = app.cfg.audio.equalizer.gain[i] * app.cfg.audio.equalizer.mix}
+                    try {CiderAudio.audioNodes.audioBands[i].gain.value = app.cfg.audio.equalizer.gain[i] * app.cfg.audio.equalizer.mix
+                        CiderAudio.intelliGainComp_h0_0();}
                     catch(e){CiderAudio.hierarchical_loading();}
                 }
                 else {