ref: c8db526e46b42874a96c3d6f7324f2ffa62962c6
parent: c5ec8339bbe78ae56cd99dc43072d9bff0e0fb96
author: robs <robs>
date: Thu Jun 26 03:57:36 EDT 2008
more tests
--- a/src/test-srcs
+++ b/src/test-srcs
@@ -1,8 +1,8 @@
#!/bin/sh
-# Sample rate conversion tests. Create a 30s sweep of 0-48kHz @ 96kHz sampling
-# rate, then use each resampler to convert it to 44.1kHz. Display the results
-# in a PNG file for each converter.
+# Sample rate conversion tests. Create a 20s sweep at the input sampling rate,
+# then use each resampler to convert it to the output rate. Display the results
+# in a PNG file for each conversion.
# Set up the following two before running the script:
SOX=./sox # The actual sox executable
@@ -9,9 +9,6 @@
SSRC_PATH=/usr/local/bin # Path to the two ssrc executables
RANGE=180
-if [ "$1" -ne "" ]; then
- RANGE="$1"
-fi
# Temporary files
IN=/tmp/$0-in-$$.wav
@@ -18,32 +15,37 @@
OUT=/tmp/$0-out-$$.wav
TIME=/tmp/$0-time-$$.wav
-# Create input file
-$SOX -r96k -n -twavpcm $IN synth 30 sin 0~48k gain -1
+test_converters () {+ # Create input file
+ $SOX -r $1 -n -twavpcm $IN synth 20 sin 0~`expr $1 / 2` gain -2
+ for src in \
+ "polyphase" \
+ "rabbit -c0" \
+ "rabbit -c1" \
+ "rate -h" \
+ "rate -v" \
+ "resample -q" \
+ "resample -ql" \
+ "ssrc" \
+ "ssrc_hp" \
+ ; do
+ echo $src
+ case "$src" in
+ ssrc*) time -f %U -o $TIME $SSRC_PATH/$src --quiet --rate $2 $IN $OUT;;
+ *) time -f %U -o $TIME $SOX $IN -r $2 $OUT $src;;
+ esac
+ t=`cat $TIME`
+ $SOX $OUT -n spectrogram \
+ -x 30 -z $RANGE -w kaiser \
+ -t "$1->$2: $src" -c "${t}s user time" \+ -o "$1_$2_`echo $src | tr ' ' '_'`.png"
+ done
+
+ rm -f $IN $OUT $TIME # Clean up
+}
-# Test each one
-for src in \
- "polyphase" \
- "rabbit -c0" \
- "rabbit -c1" \
- "rate -h" \
- "rate -v" \
- "resample -q" \
- "resample -ql" \
- "ssrc" \
- "ssrc_hp" \
- ; do
- echo $src
- case "$src" in
- ssrc*) time -f %U -o $TIME $SSRC_PATH/$src --quiet --rate 44100 $IN $OUT;;
- *) time -f %U -o $TIME $SOX $IN -r 44.1k $OUT $src;;
- esac
- t=`cat $TIME`
- $SOX $OUT -n spectrogram \
- -x 20 -z $RANGE -w kaiser \
- -t " $src " -c "${t}s user time" \- -o "spectrogram-`echo $src | tr ' ' '_'`.png"
-done
-
-# Clean up
-rm -f $IN $OUT $TIME
+test_converters 11025 48000
+test_converters 22000 96100
+test_converters 44100 96000
+test_converters 96000 44100
+#test_converters 96000 8000 # rabbit hangs