JonnyTech

The same can be done with the main `sox` program: `sox --i audiofile.ext`

Extract audio channels: left channel: `sox infile.ext outfile.wav remix 1 0` right channel: `sox infile.ext outfile.wav remix 0 1` Or if multi channels... Mix channels 1 and 3 into a...

Almost forgot my useful command; generate a 10 second 1khz sinewave test tone: `sox -n 1k_tone.wav synth 10 sine 1000`

Indeed, I never said that it could not, ie: `ffmpeg -f lavfi -i "sine=frequency=1000:sample_rate=44100:duration=10" -c:a pcm_s16le -ac 2 1k_tone.wav` But this is a `sox` thread ;)

I know that you guys are into preservation, but I use it to scrub all metadata from my images when sharing: `exiftool -all= image.ext`

To work on images in recursive subfolders: `exiftool -r -ext jpg -all= foldername`

Rename files to datetime stored in exif tag: `exiftool '-FileName

Staying with timestamps, set to specific one supplied for all files: `exiftool '-DateTimeOriginal=2018:03:28 12:00:00' .`

When the date of my camera is wrong, I shift the timestamps of the images: Add one hour `exiftool "-AllDates+=0:0:0 1" .` Subtract one hour `exiftool "-AllDates-=0:0:0 1" .` Format...

Just remembered, find files with missing exif timestamp in folders: `exiftool -filename -r -if '(not $datetimeoriginal)' folderpath/` You can probably tell that I have a thing about times!