Sidechain
Sidechain Processing
Using one audio signal to control the processing of another, commonly used to duck music under voiceover.
Technical Detail
In the audio processing pipeline, sidechain affects how sound is captured, stored, and reproduced. Digital audio fundamentals — sample rate, bit depth, and channel count — determine the theoretical quality ceiling. The Web Audio API provides browser-native DSP (Digital Signal Processing) capabilities including gain control, filtering, spatialization, and real-time analysis. Understanding sidechain is essential for optimizing audio delivery, where format choice can reduce file sizes by 70-90% with minimal perceptible quality loss.
Example
```javascript
// Sidechain: Web Audio API example
const audioCtx = new AudioContext();
const response = await fetch('audio.mp3');
const buffer = await audioCtx.decodeAudioData(await response.arrayBuffer());
const source = audioCtx.createBufferSource();
source.buffer = buffer;
source.connect(audioCtx.destination);
source.start();
```
Related Tools
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Frequency Calculator
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Delay Time Calculator
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dB Converter
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Audio File Size Calculator
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Note Frequency Chart
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Decibel Reference Guide
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Latency Calculator
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Cents Calculator
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Loudness Standards Guide
E
EQ Frequency Reference
S
Sample Rate Converter
B
Bit Depth Analyzer
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Chord Reference
K
Key & Scale Reference