Test 2 podcast episode

Test 1 Episode

ffmpeg -f lavfi -i "sine=frequency=4000:duration=30" -ac 2 output.wav

ffmpeg -f lavfi -i "sine=frequency=3000:duration=30" -ac 2 output.wav

ffmpeg -f lavfi -i "sine=frequency=2000:duration=30" -ac 2 output.wav