Can you read them? Speech to text perhaps. That can also be done locally.
If a note's a minute, 1000 notes are around 16 hours of reading. Scale time needed depending on if it takes less or more than a minute to read. Add a note reference to the start of each recording, like a zettelkasten, so the scanned file, recording and text cross-reference.
If assessing other solutions, that's at least an upper bound on the cost of any other solution.
If a note's a minute, 1000 notes are around 16 hours of reading. Scale time needed depending on if it takes less or more than a minute to read. Add a note reference to the start of each recording, like a zettelkasten, so the scanned file, recording and text cross-reference.
If assessing other solutions, that's at least an upper bound on the cost of any other solution.