[libdv-dev] 12bit audio bleep FIXED

[Stefan L. <Ste...@sn...>]

Hi,

for thouse using 12bit audio should try the following
patch for fixing sound quality and audio bleeps in
32kHz 12bit mode. Patch is for libdv code 
(directory: YOUR_LIBDV_BASE_DIR/libdv).

------- cut ------
--- audio.c.orig        Fri Nov 16 22:59:57 2001
+++ audio.c     Sat Nov 17 09:53:55 2001
@@ -500,9 +500,11 @@
       lsb   = inbuf[bp+2];

       y = ((msb_y << 4) & 0xff0) | ((lsb >> 4) & 0xf);
-      if(y > 2047) y -= 4096;
+      if(y == 2048) y = 4095;
+      if(y > 2048) y -= 4096;
       z = ((msb_z << 4) & 0xff0) | (lsb & 0xf);
-      if(z > 2047) z -= 4096;
+      if(z == 2048) z = 4095;
+      if(z > 2048) z -= 4096;

       ysamples[i] = dv_upsample(y);
       zsamples[i] = dv_upsample(z);
------- cut ------


-- 

mfg

  Stefan Lucke (Ste...@ep...)