linux transcribe.sh (bg script, hotkey adaptable) for whisper.cpp - Backup voice memo and transcription, and copy transcription to clipboard

transcribe.sh

#!/bin/bash
# place in whisper.cpp/ 
# assign this scfript to a hotkey to start a recording
# assign ffmpeg kill command to another hotkey to stop it

# if desired,
# modify the whisper.cpp/main command to add an argument
# for using a specific model other than whisper.cpp's base model

cd /home/user/whisper.cpp
# Function checks if ffmpeg is still running; transcribes if not
check_ffmpeg_running() {
  local filepath=$1

  while pgrep -x "ffmpeg" > /dev/null; do
    sleep 1  # Waiting for ffmpeg to finish
  done


  # Transcribe the audio if the file is available
  if [ -f "$filepath" ]; then
    TRANSCRIPTION=$(/home/user/whisper.cpp/main -f "$filepath" 2>/dev/null | grep -o '\[[0-9][0-9]:[0-9][0-9]:[0-9][0-9]\.[0-9][0-9][0-9] --> [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\.[0-9][0-9][0-9]\]   .*' | awk -F']   ' '{print $2}' | tr '\n' ' ')
    TRANSCRIPTION=$(echo -n "$TRANSCRIPTION" | sed 's/ $//')
    echo -n "$TRANSCRIPTION" | wl-copy
    echo -n "$TRANSCRIPTION"
    echo "$TRANSCRIPTION" > "${filepath%.wav}.txt"
    notify-send "Transcription copied to clipboard"
  else
    notify-send "Recording failed"
  fi
}

# Set the directory where the recordings and transcripts will be saved
DIR="/home/user/.transcription"

# Create directory if it doesn't exist
mkdir -p "$DIR"

# Generate filenames for new recordings and transcripts
# using current date/time
FILENAME="$(date '+%Y-%m-%d_%H-%M-%S').wav"
FILEPATH="$DIR/$FILENAME"

# Start recording with ffmpeg
ffmpeg -f alsa -i default -ar 16000 "$FILEPATH" &

# Show notification for "Recording started"
notify-send "Recording started" "Recording is currently in progress. Terminate the ffmpeg process to stop."

# Start the background function to check ffmpeg status
check_ffmpeg_running "$FILEPATH"