by andyg » 18 Aug 2015 18:00
Clare, if you've tried extending a MIDI file using software and it's converted it to a WAV, then you've used it incorrectly, or you're using the wrong software. MIDI should stay as MIDI, as without a virtual instrument sound source you can't produce a wav file, even if you wanted to. You need a MIDI Editor, or a sequencer (also known as a DAW) that incorporates a MIDI Editor. What did you use?
The free stuff you can find on line is a bit hit and miss, but if you're going to do a lot of this, then there are entry level versions of quality software like Cubase at decent proces. Cubase Elements 8 (latest version) is £73, for example. As always, there's a bit of a learning curve, but you can always ask here, or on the forum for your chose software.
The solutions offered clearly work - I told you Eileen would know! - but they seem to involve rather more button pushing on playback than I'd like, and the MIDI file won't then be 'transportable' onto another instrument.