First of all, the sound itself is good, no background noise (and no hum, as you mentioned).Welsh Librarian wrote:It just so happens that you replied whilst my computer was being repaired for a failed power pack and I have only just got it back (and I think that might have been a good thing as I have just done a test and found that the hum has disappeared), so here's hoping:
There are several technical problems, though:
I'm showing a bitrate of 320kbps; it needs to be 128kbps (constant, not variable, or VBR). The recording is in stereo, it should be in mono.
You've got significant plosives. This is when your breath hits the mic on consonants such as p, b, t. You avoid them by moving the mic out of the path of your breath, slightly to one side, above or below your mouth. You can test it by holding your hand in front of the mic and then speaking. If you can feel your breath hitting your hand, you're going to get plosives, so do a bit more adjustment. Another option is to get or make a pop filter (there are instructions on the web for making them out of embroidery hoops and pantyhose).
Last but not least, volume. It's very low. You can increase volume on the mic itself and in the recording software. If you're not sure how/where to do this, let me know what operating system you're running and what software you're using and I'll get you some instructions.