whisper.cpp/tests/run-tests.sh

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#!/bin/bash
# This scripts run the selected model agains a collection of audio files from the web.
# It downloads, converts and transcribes each file and then compares the result with the expected reference
# transcription. The comparison is performed using git's diff command and shows the differences at the character level.
# It can be used to quickly verify that the model is working as expected across a wide range of audio files.
# I.e. like an integration test. The verification is done by visual inspection of the diff output.
#
# The reference data can be for example generated using the original OpenAI Whisper implementation, or entered manually.
#
# Feel free to suggest extra audio files to add to the list.
# Make sure they are between 1-3 minutes long since we don't want to make the test too slow.
#
# Usage:
#
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# ./tests/run-tests.sh <model_name> [threads]
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#
cd `dirname $0`
# Whisper models
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models=( "tiny.en" "tiny" "base.en" "base" "small.en" "small" "medium.en" "medium" "large-v1" "large-v2" "large-v3" "large-v3-turbo" )
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# list available models
function list_models {
printf "\n"
printf " Available models:"
for model in "${models[@]}"; do
printf " $model"
done
printf "\n\n"
}
if [ $# -eq 0 ]; then
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printf "Usage: $0 [model] [threads]\n\n"
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printf "No model specified. Aborting\n"
list_models
exit 1
fi
model=$1
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main="../build/bin/main"
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threads=""
if [ $# -eq 2 ]; then
threads="-t $2"
fi
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if [ ! -f ../models/ggml-$model.bin ]; then
printf "Model $model not found. Aborting\n"
list_models
exit 1
fi
if [ ! -f $main ]; then
printf "Executable $main not found. Aborting\n"
exit 1
fi
# add various audio files for testing purposes here
# the order of the files is important so don't change the existing order
# when adding new files, make sure to add the expected "ref.txt" file with the correct transcript
urls_en=(
"https://upload.wikimedia.org/wikipedia/commons/1/1f/George_W_Bush_Columbia_FINAL.ogg"
"https://upload.wikimedia.org/wikipedia/en/d/d4/En.henryfphillips.ogg"
"https://cdn.openai.com/whisper/draft-20220913a/micro-machines.wav"
)
urls_es=(
"https://upload.wikimedia.org/wikipedia/commons/c/c1/La_contaminacion_del_agua.ogg"
)
urls_it=(
)
urls_pt=(
)
urls_de=(
)
urls_jp=(
)
urls_ru=(
)
function run_lang() {
lang=$1
shift
urls=("$@")
i=0
for url in "${urls[@]}"; do
echo "- [$lang] Processing '$url' ..."
ext="${url##*.}"
fname_src="$lang-${i}.${ext}"
fname_dst="$lang-${i}-16khz.wav"
if [ ! -f $fname_src ]; then
wget --quiet --show-progress -O $fname_src $url
fi
if [ ! -f $fname_dst ]; then
ffmpeg -loglevel -0 -y -i $fname_src -ar 16000 -ac 1 -c:a pcm_s16le $fname_dst
if [ $? -ne 0 ]; then
echo "Error: ffmpeg failed to convert $fname_src to $fname_dst"
exit 1
fi
fi
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$main -m ../models/ggml-$model.bin $threads -f $fname_dst -l $lang -otxt 2> /dev/null
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git diff --no-index --word-diff=color --word-diff-regex=. $lang-$i-ref.txt $fname_dst.txt
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i=$(($i+1))
done
}
run_lang "en" "${urls_en[@]}"
if [[ $model != *.en* ]]; then
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run_lang "es" "${urls_es[@]}"
run_lang "it" "${urls_it[@]}"
run_lang "pt" "${urls_pt[@]}"
run_lang "de" "${urls_de[@]}"
run_lang "jp" "${urls_jp[@]}"
run_lang "ru" "${urls_ru[@]}"
fi