From cc3e4431599de81f82d5f5039443825c071bc599 Mon Sep 17 00:00:00 2001
From: dakkar <dakkar@thenautilus.net>
Date: Fri, 28 Aug 2020 19:59:28 +0100
Subject: IT WORKS NOW!

it was (almost) all a problem of signed vs unsigned
---
 esp32/lego-piano.ino | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esp32/lego-piano.ino b/esp32/lego-piano.ino
index 120792e..01b3bb7 100644
--- a/esp32/lego-piano.ino
+++ b/esp32/lego-piano.ino
@@ -160,7 +160,7 @@ void loop() {
     // we don't want to drop an element from the buffer if we then
     // can't write it! so we peek at the buffer, try to write, and pop
     // if successful
-    value=buffer[0];
+    value=buffer[0] + 32768; // tsf produces *signed* shorts, i2s wants *unsigned*
     i2s_write(i2sPort, &value, sizeof(value), &written, 0);
     if (written > 0) buffer.pop(value);
   }
-- 
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