From e8cc571d6a0f12934b7909b4fe6c7250758b5a7b Mon Sep 17 00:00:00 2001
From: meew0 <blactbt@live.de>
Date: Sat, 2 Apr 2016 11:03:28 +0200
Subject: [PATCH 1/4] Make the multiplier return the current volume without
 doing any math to it, so we can have different ways to set the multiplier in
 logarithmic ways.

---
 src/Voice/VolumeTransformer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Voice/VolumeTransformer.js b/src/Voice/VolumeTransformer.js
index 6235ae496..7c9c18ecd 100644
--- a/src/Voice/VolumeTransformer.js
+++ b/src/Voice/VolumeTransformer.js
@@ -18,7 +18,7 @@ class Volume extends Transform {
 	}
 
 	get multiplier() {
-		return Math.tan(this.volume);
+		return this.volume;
 	}
 
 	get() {

From 910b5a7ae6c5cae64ed90e971bd9941b126e0293 Mon Sep 17 00:00:00 2001
From: meew0 <blactbt@live.de>
Date: Sat, 2 Apr 2016 11:08:00 +0200
Subject: [PATCH 2/4] Add a function to set the volume in a logarithmic way so
 that 0.5 is -10 dB (half the perceived volume) and 2.0 is +10 dB (double the
 perceived volume).

---
 src/Voice/VolumeTransformer.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Voice/VolumeTransformer.js b/src/Voice/VolumeTransformer.js
index 7c9c18ecd..98c7d7b15 100644
--- a/src/Voice/VolumeTransformer.js
+++ b/src/Voice/VolumeTransformer.js
@@ -17,6 +17,12 @@ class Volume extends Transform {
 		this._volume = value;
 	}
 
+	// Set the volume so that a value of 0.5 is half the perceived volume and
+	// 2.0 is double the perceived volume.
+	setVolumeLogarithmic(value) {
+		this.volume = Math.pow(value, 1.660964);
+	}
+
 	get multiplier() {
 		return this.volume;
 	}

From 3a2c449197981c1c5c1267fcaabac0d9c3e4fae7 Mon Sep 17 00:00:00 2001
From: meew0 <blactbt@live.de>
Date: Sat, 2 Apr 2016 11:09:51 +0200
Subject: [PATCH 3/4] Add a function to set the volume to a decibel value

---
 src/Voice/VolumeTransformer.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Voice/VolumeTransformer.js b/src/Voice/VolumeTransformer.js
index 98c7d7b15..87b9d0521 100644
--- a/src/Voice/VolumeTransformer.js
+++ b/src/Voice/VolumeTransformer.js
@@ -23,6 +23,11 @@ class Volume extends Transform {
 		this.volume = Math.pow(value, 1.660964);
 	}
 
+	// Set the volume to a value specified as decibels.
+	setVolumeDecibels(db) {
+		this.volume = Math.pow(10, db / 20);
+	}
+
 	get multiplier() {
 		return this.volume;
 	}

From 8fa3c24b1292c600edb7a0d84ab1179da34e6f3e Mon Sep 17 00:00:00 2001
From: meew0 <blactbt@live.de>
Date: Sat, 2 Apr 2016 11:15:33 +0200
Subject: [PATCH 4/4] Rebuild for volume changes

---
 lib/Voice/VolumeTransformer.js | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/Voice/VolumeTransformer.js b/lib/Voice/VolumeTransformer.js
index 309bb8dbd..29cbfb176 100644
--- a/lib/Voice/VolumeTransformer.js
+++ b/lib/Voice/VolumeTransformer.js
@@ -22,6 +22,19 @@ var Volume = (function (_Transform) {
 		this.set(volume);
 	}
 
+	// Set the volume so that a value of 0.5 is half the perceived volume and
+	// 2.0 is double the perceived volume.
+
+	Volume.prototype.setVolumeLogarithmic = function setVolumeLogarithmic(value) {
+		this.volume = Math.pow(value, 1.660964);
+	};
+
+	// Set the volume to a value specified as decibels.
+
+	Volume.prototype.setVolumeDecibels = function setVolumeDecibels(db) {
+		this.volume = Math.pow(10, db / 20);
+	};
+
 	Volume.prototype.get = function get() {
 		return this.volume;
 	};
@@ -61,7 +74,7 @@ var Volume = (function (_Transform) {
 	}, {
 		key: 'multiplier',
 		get: function get() {
-			return Math.tan(this.volume);
+			return this.volume;
 		}
 	}]);