Speech to text bot for matterbridge using OpenAI's Whisper API

s2tbot.sh

#!/bin/bash
whispertoken='REDACTED'
bridgetoken='REDACTED'
saidverb='sanoi'

curl -N http://localhost:4242/api/stream -H "Authorization: Bearer $bridgetoken" -s -m 1 > /dev/null # flush cache
curl -N http://localhost:4242/api/stream -H "Authorization: Bearer $bridgetoken" -s |


while IFS= read -r line;
do
        filename=$(echo $line | jq -r .Extra.file[0].Name;)
        if [[ "$filename" == *.oga ]];
        then
                speech=$(echo $line | jq -r .Extra.file[0].Data | base64 -d |
                ffmpeg -hide_banner -loglevel error -vn -i - -acodec libmp3lame -f mp3 - |
                 curl --no-progress-meter --request POST \
                  --url https://api.openai.com/v1/audio/transcriptions \
                  -H 'Content-Type: multipart/form-data' \
                  -H "Authorization: Bearer $whispertoken" \
                  -H "Transfer-Encoding: chunked" --form "file=@-;filename=audio.mp3" --form model=whisper-1 |
                 jq -r .text;)
                nick=$(echo $line | jq -r .username;)
                outmessage="$nick $saidverb: $speech"
                gateway=$(echo $line | jq -r .gateway;)
                curl --no-progress-meter -XPOST -H 'Content-Type: application/json' \
                 -H "Authorization: Bearer $bridgetoken" \
                 -d '{"text":"'"$outmessage"'","username":"s2tBOT","gateway":"'"$gateway"'"}' \
                 http://localhost:4242/api/message
        fi
done