From 8abd97907a2e9963dba47e971178da4a4d735d58 Mon Sep 17 00:00:00 2001
From: jean-marcharvengt <harvengtjeanmarc@gmail.com>
Date: Sat, 12 Feb 2022 10:56:24 +0100
Subject: [PATCH] fix audio glitch at 60Hz in Teensy nofrendo from Krzysztof

---
 MCUME_teensy/teensynofrendo/nes_emu.c          | 2 +-
 MCUME_teensy/teensynofrendo/teensynofrendo.ino | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/MCUME_teensy/teensynofrendo/nes_emu.c b/MCUME_teensy/teensynofrendo/nes_emu.c
index 0b9106b..9f7fbb2 100644
--- a/MCUME_teensy/teensynofrendo/nes_emu.c
+++ b/MCUME_teensy/teensynofrendo/nes_emu.c
@@ -91,7 +91,7 @@ static int osd_init_sound(void)
 
 void osd_getsoundinfo(sndinfo_t *info)
 {
-   info->sample_rate = 22050;
+   info->sample_rate = (22050*20000)/16666; // fix for 60Hz
    info->bps = 16;
 }
 
diff --git a/MCUME_teensy/teensynofrendo/teensynofrendo.ino b/MCUME_teensy/teensynofrendo/teensynofrendo.ino
index cbfb26b..00b9891 100644
--- a/MCUME_teensy/teensynofrendo/teensynofrendo.ino
+++ b/MCUME_teensy/teensynofrendo/teensynofrendo.ino
@@ -210,7 +210,7 @@ void setup() {
 #endif  
   emu_init(); 
 
-  myTimer.begin(vblCount, 20000);  //to run every 20ms  
+  myTimer.begin(vblCount, 16666);  //to run every 16.6666ms  
 }
 
 // ****************************************************