This recording is not better than the one on the site. The hiss is still there, yet now it is like a pulsing hiss, sort of like the other file you tried de-hissing.

Really? It sounded fine when I listened to it with earphones. Oh well, better let well alone.

I know my ears have lost some sensitivity to the high frequencies, but I can't for the life of me detect any hiss here, pulsing or otherwise. If there is hiss, I am sure it can't be a big deal.

Ok, I don't know what I'm talking about.

No, you know perfectly well what you are talking about. Listening again to this without earphones with my wife we both heard this pulsating hiss. Maybe my error was to edit the MP3 and not the WAV file. I shall try again.

Keep in mind mp3 is a compressed, "lossy", format. When you edit an mp3, the audio software first has to expand it to a wav, which is of less quality
than the original wav - because what has been lost never can come back. You edit the wav, then compress it once more to mp3, losing even more quality. You see why editing an mp3 is not a good idea.

But interesting you could hear hiss without headphones which you could't hear WITH them. Usually it is the other way around.... Are you sure it was not somebody taking a shower or hosing the garden ?

It was my mistake. I should have gone for the WAV, which I had, though remember, I have an MP3 recorder, so I always start with an MP3, which I expand in Audacityy, which I then edit and save as a WAV (for me) and an MP3 (for you).

As I wrote, I did not rerecord: I simply edited the file, but not the WAV, but the MP3. I shall try again.

I think most or all mp3 recorders can record WAV as well as mp3.

Not mine.