I am trying to work around the restrictions on Mobile Safari on uploading files via HTML 5 forms.
According to the research I've done so far, Mobile Safari (iOS 9+) doesn't allow you to specify audio only for file uploads, but it does allow video.
My workaround is to get a video from the user as a blob, and then send the blob to my server and extract the audio as a .wav using ffmpeg.
Unfortunately, the video files are quite big (1min=30meg), and the equivalent audio is much smaller (1min=6meg)
Obviously it's much more preferable to only send the audio to the server.
Does anyone know a method of extracting audio from video on the client side in Mobile Safari? I know this is a long shot, but thought it was worth asking.
Thanks.