From ea6e6ee1040fa85f743ab50b699fbeb04d9a0522 Mon Sep 17 00:00:00 2001
From: jules <jules@asdf.us>
Date: Tue, 20 Mar 2018 23:35:18 +0100
Subject: scripts

---
 datasets/spread.sh | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100755 datasets/spread.sh

(limited to 'datasets/spread.sh')

diff --git a/datasets/spread.sh b/datasets/spread.sh
new file mode 100755
index 0000000..bec1da3
--- /dev/null
+++ b/datasets/spread.sh
@@ -0,0 +1,25 @@
+
+if [ "$#" -ne 5 ]; then
+    echo "Usage: $0 <in.wav> <out.wav> <rate_min> <rate_step> <rate_max>"
+    exit
+fi
+
+FN_IN=$1
+FN_OUT=$2
+RATE=$3
+STEP=$4
+MAX=$5
+
+ITER=0
+while true; do
+  if (( $(echo "$RATE > $MAX" | bc -l) )); then
+    break
+  fi
+  let ITER+=1
+  RATE=`echo "$RATE+$STEP" | bc`
+  sox $FN_IN "tmp_$ITER.wav" speed $RATE
+done
+
+sox tmp_* $FN_OUT
+rm tmp_*
+
-- 
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