sound/weapons/tuba_loopnote_maker.sh

   1 #!/bin/sh
   2
   3 set -ex
   4
   5 (
   6         cd loopfinder
   7         gcc -o findloop findloop.c -lfftw3 -Wall -Wextra -ffast-math -lsndfile -O3
   8 )
   9
  10 t=`mktemp -dt loopfinder.XXXXXX`
  11 trap 'rm -rf "$t"' EXIT
  12
  13 synth=$1; shift
  14 program=$1; shift
  15 velocity=$1; shift
  16 transpose=$1; shift
  17 tubaid=$1; shift
  18
  19 delta=2
  20 fftsize=512
  21 loopmin=1.1
  22 loopmax=1.5
  23 len=1.8
  24
  25 perl tuba_loopnote_maker.mid.pl "$t"/tuba_loopnote_maker.mid $delta $program $velocity $transpose -18 -12 -6 0 6 12 18 24
  26
  27 case "$synth" in
  28         timidity)
  29                 timidity -Ow "$@" -o "$t"/out.wav "$t"/tuba_loopnote_maker.mid
  30                 ;;
  31         fluidsynth)
  32                 fluidsynth -v -n -i -l -T wav -F "$t"/out.wav "$@" "$t"/tuba_loopnote_maker.mid
  33                 ;;
  34 esac
  35 normalize "$t"/out.wav
  36
  37 start=$delta
  38 step=$(($delta*2))
  39 for note in -18 -12 -6 0 6 12 18 24; do
  40         sox "$t"/out.wav "$t"/n$note.wav \
  41                 trim $start $step \
  42                 silence 1 1s 0
  43
  44         fn=tuba"$tubaid"_loopnote"$note".ogg
  45
  46         # now find loop point
  47         loopfinder/findloop "$t"/n$note.wav $fftsize $len $loopmin $loopmax "$t"/t$note.wav | while read -r SAMPLES SECONDS; do
  48                 oggenc -q9 -o "$fn" -c "LOOP_START=$SAMPLES" "$t"/t$note.wav
  49         done
  50
  51         # next!
  52         start=$(($start+$step))
  53 done
  54
  55 exit 0