From 3b880613f6cbc5ba8b19d934521e13688bcf2c2f Mon Sep 17 00:00:00 2001
From: Brian Peiris <brianpeiris@gmail.com>
Date: Tue, 10 Apr 2018 16:02:44 -0700
Subject: [PATCH] multiply visual on mic indicator
---
src/react-components/ui-root.js | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/src/react-components/ui-root.js b/src/react-components/ui-root.js
index ce2d1aa9f..c193cad2e 100644
--- a/src/react-components/ui-root.js
+++ b/src/react-components/ui-root.js
@@ -372,23 +372,24 @@ class UIRoot extends Component {
const AudioContext = window.AudioContext || window.webkitAudioContext;
const micLevelAudioContext = new AudioContext();
const micSource = micLevelAudioContext.createMediaStreamSource(mediaStream);
- const analyzer = micLevelAudioContext.createAnalyser();
- const levels = new Uint8Array(analyzer.fftSize);
+ const analyser = micLevelAudioContext.createAnalyser();
+ analyser.fftSize = 32;
+ const levels = new Uint8Array(analyser.frequencyBinCount);
- micSource.connect(analyzer);
+ micSource.connect(analyser);
const micUpdateInterval = setInterval(() => {
- analyzer.getByteTimeDomainData(levels);
-
+ analyser.getByteTimeDomainData(levels);
let v = 0;
-
for (let x = 0; x < levels.length; x++) {
- v = Math.max(levels[x] - 127, v);
+ v = Math.max(levels[x] - 128, v);
}
-
const level = v / 128.0;
- this.micLevelMovingAverage.push(Date.now(), level);
- this.setState({ micLevel: this.micLevelMovingAverage.movingAverage() });
+ // multiplier to increase visual indicator
+ const multiplier = 6;
+ this.micLevelMovingAverage.push(Date.now(), level * multiplier);
+ const average = this.micLevelMovingAverage.movingAverage();
+ this.setState({ micLevel: average });
}, 50);
const micDeviceId = this.micDeviceIdForMicLabel(this.micLabelForMediaStream(mediaStream));
--
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