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22 lines
740 B
Text
22 lines
740 B
Text
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#!/usr/bin/zsh
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# script to make sense of compand's parameters
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compandy() {
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if [ $# -eq 0 ]; then
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echo -E "usage: $0 {attack} {release} {threshold} {ratio} [knee] [gain] [delay]"
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return 1
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fi
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local atk="${1}" rel="${2}"
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local thresh="${3}" ratio="${4}"
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local knee="${5:-1}" gain="${6:-0}" delay="${7:-0}"
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let 'atk/=1000.'
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let 'rel/=1000.'
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let 'delay/=1000.'
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local end= start=
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let 'end=thresh - thresh/(ratio + 0.0)'
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local start=$thresh
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printf "compand=%.5f|%.5f:%.5f|%.5f:%.1f/%.1f|0/%.2f:%.2f:%.2f:%.1f" \
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$atk $atk $rel $rel $thresh $thresh $end $knee $gain $start
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#echo "compand=$atk|$atk:$rel|$rel:$thresh/$thresh|0/$end:$knee:$gain:$start:$delay"
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}
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compandy "$@"
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