How to use audio cover image as post featured image

Do you want to use the audio album art? If so, you have to extract the ID3 tag:

https://stackoverflow.com/questions/16746647/how-can-i-extract-the-album-art-from-an-mp3-id3-tag

@a2hostingrj
Thanks for your help but the code I saw there didn’t work.

I use the code below to extract the artist of the song. So I need something similar to this.

$file = get_attached_file( $attachment->ID );
$metadata = wp_read_audio_metadata( $file );
$Artist = $metadata['artist'];

I’m a step away from solving my problems, which action fires immediately after wordpress finished crunching an attachment.
I know about add_attachment it fires immediately after uploading a post – when wordpress has not generated meta data and featured image of audio files.