Wav to mp3 Converter - Batch Transform All Files in Directory

Follow these steps if you are on Windows 32 bit:

1. Click the following button to download a .zip file, named speechnotes_ffmpeg.zip
   speechnotes_ffmpeg.zip
2. Copy speechnotes_ffmpeg.zip to your C hard drive
3. Extract the zip file.
4. Verify that you now have a folder named speechnotes_ffmpeg directly within your C hard drive. If you do - continue.
5. Click the following button to download a .bat file, named speechnotes_wav_to_mp3.bat
   speechnotes_wav_to_mp3.bat
6. Copy speechnotes_wav_to_mp3.bat to any directory that has the *.wav audio files you want to extract the audio from.
7. Double click the copied speechnotes_wav_to_mp3.bat file in order to run it. It should automatically open a command line window and run there.
8. Once finished, it creates a folder named speechnotes-output-mp3 where in it are all the new mp3 files
9. Have more *.wav audio files in a different directory? Simply repeat 'Copy speechnotes_wav_to_mp3.bat to any directory...'  and on with the other directory.

Don't have a C hard drive?

You may use a different drive, but, you will have to edit the .bat file, and replace every 'C://' with your drive of choice.

Follow these steps if you are on Mac

* Please note, these instructions will require you to work with the command-line terminal. It's very simple - we'll walk you through each step - so please bare with us. *

Open Terminal

On your Mac, do one of the following:

• Click the Launchpad icon in the Dock / or launch 'Spotlight Search', type 'Terminal' in the search field, then click Terminal.
• In the Finder, open the /Applications/Utilities folder, then double-click Terminal.

Install ffmpeg. If you have it already - continue straight to Got ffmpeg - lets convert some audio section

Check if you have ffmpeg installed on your mac:
In the opened Terminal type
ffmpeg -version
and click 'Enter'.
If you received a response of: -bash: ffmpeg: command not found it means you do NOT have it. Otherwise - you have it. If you have it already - continue straight to Got ffmpeg - lets convert some audio section.

- I do not have ffmpeg. Let's install it.

One more check first - let's check if you have Homebrew installed on your mac:
In the opened Terminal type
brew -v
and click 'Enter'.
If you received a response of: -bash: brew: command not found it means you do NOT have it. Otherwise - you have it.
In case you do not have it, simply install it by copying the following into your Terminal (click 'Enter' after pasting to terminal):
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

Once 'brew' is installed - type enter the following in your Terminal:
brew install ffmpeg
Once installed - continue:

Got ffmpeg - lets convert some audio

1. Open the terminal in the specific folder where your wav files are located. One simple way to do that is:
   1. Type (without Enter) cd  (note the 'space' after 'cd') and then
   2. Drag from Finder the folder which contains the wav files into the Terminal
   3. Click 'Enter'
   4. You should now see the name of that directory in the new line that the Terminal's caret is on.
2. In the terminal, copy the following and click 'Enter': echo "Making speechnotes-output-mp3s directory"
mkdir -p speechnotes-output-mp3s
echo "Success making speechnotes-output-mp3s directory"

COUNTER=0;
echo "Searching for wav files in directory"
for input in *.wav; do
# ffmpeg -i "$input" -ac 1 "speechnotes-output-mp3s/$(basename -s .wav "$input").mp3"
if [ -f "$input" ]; then
COUNTER=$((COUNTER + 1))
echo "Found and converting $input"
ffmpeg -i "$input" -ac 1 "speechnotes-output-mp3s/$(basename -s .wav "$input").mp3" -nostdin -loglevel panic
fi
done
echo "Done. Found total $COUNTER wav files in directory"

3. Now you should have created a folder named 'speechnotes-output-mp3s' where in it are converted mp3 files. Congrats.
4. Got more wav files to convert in a different directory? Simply repeat Got ffmpeg - lets convert some audio for any directory you need. No need to install brew nor ffmpeg again.