@Stephen66515: Re: Looking for Audio Software for "Audio Learning"
Just as a point of information, one could use Microsoft's ON
(OneNote) to automatically index/search for recognisable words/phrases (in several different languages) in sound files - i.e., .MP3 and some other audio file formats - and in the audio tracks of some common video formats.
I have mentioned in this thread the very useful/clever features of OneNote. Of particular relevance is OneNote's use of audio as a datatype.
If you don't know what the heck I am talking about and if you'd like to find out more, there is a good introduction from PCworld.com - here: How to record audio with OneNote to supercharge your note-taking
EDIT 2017-01-07 0131hrs: See also my notes on page 1 of this discussion thread - Searching for information in audio notes in OneNote.
I have mostly played about with spoken English in audio tracks in sound files in ON and it works amazingly well on search (in Windows Desktop Search and in ON search) - e.g., being able to detect decipherable
words phrases, even in musical songs, though it is best in straight voice recording tracks, because there is less "noise" around the spoken words. It tells you at what point (minutes and seconds) the detected words/phrase being searched for are located in the audio file.
I am currently in the process of converting a (rather good) maths course on cassette tapes to .MP3 files, for my daughter's use - putting it into ON as audio files. I am using Audacity for the conversion, as it has the capability to negate/cancel out tape hiss/hum. The (rather old) course employs audio lessons which are to be listened to in conjunction with some (rather good and still current) printed (hardcopy) learning texts on different subjects - e.g., including algebra, geometry, calculus, etc.. The syllabus is relevant to NZ NCEA standards and corresponding Aussie standards. The hardcopy is to be scanned and OCR'd into ON.
So I am to some extent doing something similar - using ON - as to what is being done in this discussion thread - whilst at the same time preserving for posterity an excellent old maths course for use with modern collaborative technology, in my "21st Century Zettelkasten PIM".