diff --git a/tests/ffmpeg.regression.ref b/tests/ffmpeg.regression.ref
index 1e7d0e2be0..7a72196e74 100644
--- a/tests/ffmpeg.regression.ref
+++ b/tests/ffmpeg.regression.ref
@@ -126,18 +126,19 @@ stddev: 10.99 PSNR:27.30 bytes:7602176
 21f8ff9f1daacd9133683bb4ea0f50a4 *./data/a-mp2.mp2
 95712 ./data/a-mp2.mp2
 6956f2c5185c4edbae648c614992a14b *./data/out.wav
-stddev:117.02 PSNR: 6.76 bytes:1054720
+stddev:9330.70 PSNR:16.92 bytes:527360
+stddev:4396.13 PSNR:23.46 bytes:526336
 d056da679e6d6682812fffb28a7f0db6 *./data/a-ac3.rm
 97983 ./data/a-ac3.rm
 2d081e0e1f2e9bd4514e9ac8ec41884c *./data/a-g726.wav
 24268 ./data/a-g726.wav
 a719ab6d47d8d601520edb13bf6136b4 *./data/out.wav
-stddev:134.28 PSNR: 5.56 bytes:96256
+stddev:8459.88 PSNR:17.77 bytes:48128
 bdc512b78e2ccb1d815aec08794650eb *./data/a-adpcm_ima.wav
 266288 ./data/a-adpcm_ima.wav
 1316b03da3bdc8df9785c7995e3c9b2a *./data/out.wav
-stddev:129.55 PSNR: 5.87 bytes:1054720
+stddev:13585.76 PSNR:13.66 bytes:527360
 d2eee867856d2bdb6d08e936d4ceec0c *./data/a-adpcm_ms.wav
 267308 ./data/a-adpcm_ms.wav
 91a84bb4f319a3a0bf0c0441b3d3a529 *./data/out.wav
-stddev: 73.79 PSNR:10.76 bytes:1054720
+stddev:1050.18 PSNR:35.89 bytes:527360
diff --git a/tests/regression.sh b/tests/regression.sh
index fb100dddcf..e6e2e02661 100755
--- a/tests/regression.sh
+++ b/tests/regression.sh
@@ -110,7 +110,7 @@ do_ffmpeg()
     if [ $f = $raw_dst ] ; then
         $tiny_psnr $f $raw_ref >> $logfile
     elif [ $f = $pcm_dst ] ; then
-        $tiny_psnr $f $pcm_ref >> $logfile
+        $tiny_psnr $f $pcm_ref 2 >> $logfile
     else
         wc -c $f >> $logfile
     fi
@@ -458,6 +458,7 @@ do_ffmpeg $file -y -ab 128 -ac 2 -ar 44100 -f s16le -i $pcm_src $file
 
 # mp2 decoding
 do_ffmpeg $pcm_dst -y -i $file -f wav $pcm_dst 
+$tiny_psnr $pcm_dst $pcm_ref 2 1924 >> $logfile
 fi
 
 ###################################
diff --git a/tests/rotozoom.regression.ref b/tests/rotozoom.regression.ref
index 78814e4b45..4f68f0a16e 100644
--- a/tests/rotozoom.regression.ref
+++ b/tests/rotozoom.regression.ref
@@ -126,18 +126,19 @@ stddev:  3.43 PSNR:37.39 bytes:7602176
 21f8ff9f1daacd9133683bb4ea0f50a4 *./data/a-mp2.mp2
 95712 ./data/a-mp2.mp2
 6956f2c5185c4edbae648c614992a14b *./data/out.wav
-stddev:117.02 PSNR: 6.76 bytes:1054720
+stddev:9330.70 PSNR:16.92 bytes:527360
+stddev:4396.13 PSNR:23.46 bytes:526336
 d056da679e6d6682812fffb28a7f0db6 *./data/a-ac3.rm
 97983 ./data/a-ac3.rm
 2d081e0e1f2e9bd4514e9ac8ec41884c *./data/a-g726.wav
 24268 ./data/a-g726.wav
 a719ab6d47d8d601520edb13bf6136b4 *./data/out.wav
-stddev:134.28 PSNR: 5.56 bytes:96256
+stddev:8459.88 PSNR:17.77 bytes:48128
 bdc512b78e2ccb1d815aec08794650eb *./data/a-adpcm_ima.wav
 266288 ./data/a-adpcm_ima.wav
 1316b03da3bdc8df9785c7995e3c9b2a *./data/out.wav
-stddev:129.55 PSNR: 5.87 bytes:1054720
+stddev:13585.76 PSNR:13.66 bytes:527360
 d2eee867856d2bdb6d08e936d4ceec0c *./data/a-adpcm_ms.wav
 267308 ./data/a-adpcm_ms.wav
 91a84bb4f319a3a0bf0c0441b3d3a529 *./data/out.wav
-stddev: 73.79 PSNR:10.76 bytes:1054720
+stddev:1050.18 PSNR:35.89 bytes:527360