make-podcast

#!/bin/bash

TIME=$(date +%Y-%m-%d_%H-%M-%S)

case "$1" in
	--trim)
		if [[ "$2" -ne "0" || -z "$2" ]]; then
			echo "Missing or incorrect parameters"
			exit
		fi
		echo "file: $2, start: $3, end: $4"
		# Trim the file, keeping only start to end times
		ffmpeg -y \
			-i "$2" \
			-ss "$3" \
			-to "$4" \
			-acodec pcm_s16le \
			audio_trimmed_$TIME.wav
			exit
	;;
	--record)
		echo "Recording from Pulseaudio, processing in FFMPEG..."
		# Recording raw audio data with FFMPEG
		ffmpeg -y \
			-f pulse \
			-ac 1 \
			-ar 48000 \
			-i default \
			-filter_complex "compand=attacks=0:points=-60/-40|-30/-15|-15/-10|-5/-8|0/-6" \
			-acodec pcm_s16le \
			audio_recorded_$TIME.wav
			exit
	;;
	--convert)
		if [[ -z "$2" ]]; then
			echo "Missing or incorrect parameters"
			exit
		fi
		echo "file: $2, convert to mp3"
		# Trim the file, keeping only start to end times
		ffmpeg -y \
			-i "$2" \
			-acodec libmp3lame \
			-b:a 128k \
			audio_converted_$TIME.mp3
			exit
	;;
	*)
		echo "usage: make-podcast < --record | --trim | --convert| --help > < audiofile > < start time hh:mm:ss > < end time hh:mm:ss >"
		echo "--record:     compands and saves audio in wav format"
		echo "--trim:       keeps audio between start and end times in wav format"
		echo "--convert:    converts audio from wav to mp3"
		exit
	;;
esac