DFR0126 Audio Analyzer library has invalid name

I am using Windows 10, Arduino 1.8.5. I have downloaded the software for Due and have successfully compiled and uploaded fade then blink. This demonstrates that the connection to Due is working. Next I tried incorporating the library AudioAnalyzer v1.3. The library manager in Arduino 1.8.5 objected: only letters and numerals allowed, therefore no '.' nor ' ' characters in the name permitted.
Any suggestions as to how this problem could be solved? (I renamed the file to AudioAnalyzer.zip but it contains a folder named AudioAnalyzer v1.3 so back to the original problem).
Thanks for any help