From 848025b9c0ffe71aee77da1e509a21595aeaf9ee Mon Sep 17 00:00:00 2001
From: David Reid <mackron@gmail.com>
Date: Thu, 5 Feb 2026 20:15:54 +1000
Subject: [PATCH] Resampler: Fix a bug where the LPF is not being applied.

---
 miniaudio.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/miniaudio.h b/miniaudio.h
index c20c9afc..2ada3796 100644
--- a/miniaudio.h
+++ b/miniaudio.h
@@ -59254,7 +59254,7 @@ static ma_result ma_linear_resampler_process_pcm_frames_s16_downsample(ma_linear
             }
 
             /* Filter. Do not apply filtering if sample rates are the same or else you'll get dangerous glitching. */
-            if (pResampler->inAdvanceInt == 1 && pResampler->inAdvanceFrac == 0) {
+            if (pResampler->inAdvanceInt != 1 || pResampler->inAdvanceFrac != 0) {
                 ma_lpf_process_pcm_frame_s16(&pResampler->lpf, pResampler->x1.s16, pResampler->x1.s16);
             }
 
@@ -59345,7 +59345,7 @@ static ma_result ma_linear_resampler_process_pcm_frames_s16_upsample(ma_linear_r
             ma_linear_resampler_interpolate_frame_s16(pResampler, invSampleRateOut, pFramesOutS16);
 
             /* Filter. Do not apply filtering if sample rates are the same or else you'll get dangerous glitching. */
-            if (pResampler->inAdvanceInt == 1 && pResampler->inAdvanceFrac == 0) {
+            if (pResampler->inAdvanceInt != 1 || pResampler->inAdvanceFrac != 0) {
                 ma_lpf_process_pcm_frame_s16(&pResampler->lpf, pFramesOutS16, pFramesOutS16);
             }
 
@@ -59422,7 +59422,7 @@ static ma_result ma_linear_resampler_process_pcm_frames_f32_downsample(ma_linear
             }
 
             /* Filter. Do not apply filtering if sample rates are the same or else you'll get dangerous glitching. */
-            if (pResampler->inAdvanceInt == 1 && pResampler->inAdvanceFrac == 0) {
+            if (pResampler->inAdvanceInt != 1 || pResampler->inAdvanceFrac != 0) {
                 ma_lpf_process_pcm_frame_f32(&pResampler->lpf, pResampler->x1.f32, pResampler->x1.f32);
             }
 
@@ -59513,7 +59513,7 @@ static ma_result ma_linear_resampler_process_pcm_frames_f32_upsample(ma_linear_r
             ma_linear_resampler_interpolate_frame_f32(pResampler, invSampleRateOut, pFramesOutF32);
 
             /* Filter. Do not apply filtering if sample rates are the same or else you'll get dangerous glitching. */
-            if (pResampler->inAdvanceInt == 1 && pResampler->inAdvanceFrac == 0) {
+            if (pResampler->inAdvanceInt != 1 || pResampler->inAdvanceFrac != 0) {
                 ma_lpf_process_pcm_frame_f32(&pResampler->lpf, pFramesOutF32, pFramesOutF32);
             }