From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Fri, 29 Jul 2016 12:40:14 +0000 (+0200)
Subject: Fix a 3 dB offset in audio conversion.
X-Git-Tag: 1.3.4~12
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=1e3a352c26f73f10a5402bdd9a9a849fdafa283d;p=nageru

Fix a 3 dB offset in audio conversion.
---

diff --git a/mixer.cpp b/mixer.cpp
index 52a8d84..c7387e7 100644
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -62,7 +62,7 @@ void convert_fixed24_to_fp32(float *dst, size_t out_channels, const uint8_t *src
 			uint32_t s2 = *src++;
 			uint32_t s3 = *src++;
 			uint32_t s = s1 | (s1 << 8) | (s2 << 16) | (s3 << 24);
-			dst[i * out_channels + j] = int(s) * (1.0f / 4294967296.0f);
+			dst[i * out_channels + j] = int(s) * (1.0f / 2147483648.0f);
 		}
 		src += 3 * (in_channels - out_channels);
 	}
@@ -75,7 +75,7 @@ void convert_fixed32_to_fp32(float *dst, size_t out_channels, const uint8_t *src
 		for (size_t j = 0; j < out_channels; ++j) {
 			// Note: Assumes little-endian.
 			int32_t s = *(int32_t *)src;
-			dst[i * out_channels + j] = s * (1.0f / 4294967296.0f);
+			dst[i * out_channels + j] = s * (1.0f / 2147483648.0f);
 			src += 4;
 		}
 		src += 4 * (in_channels - out_channels);