From 4fc0a92dbee54b949a1ba53f8f056517bbf27dd7 Mon Sep 17 00:00:00 2001
From: Brooke Vibber <bvibber@pobox.com>
Date: Sat, 7 Sep 2024 08:48:12 -0700
Subject: [PATCH] meh

---
 pack-wav.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pack-wav.js b/pack-wav.js
index 50379a0..9e87df9 100644
--- a/pack-wav.js
+++ b/pack-wav.js
@@ -20,7 +20,7 @@ class Dither {
     }
 
     to4bit(val8) {
-        let val = (val8 / 255) - this.err;
+        let val = (val8 / 255) + this.err;
         if (val < 0) {
             val = 0;
         }
@@ -29,7 +29,7 @@ class Dither {
         }
         let val4 = Math.round(val * 15);
         let dithered = (val4 / 15);
-        this.err = (dithered - val);
+        this.err = (val - dithered);
         return val4;
     }
 }