Refresh concert recording

[pinkf]

I'm using Audacity 2.4.2 and have Windows 8.1

I have an old concert recording in mono. This one sounds rather dull.
I want to refresh the sound so that the recording will sound fresh and sparkling.

How do I that in Audacity, what should I do?
Which filters are useful?

pinkf

[steve]

I have an old concert recording in mono.

On cassette tape?
What sort of concert?
Is it a low quality "bootleg" recording, or a professional recording?

This one sounds rather dull.

You can make a recording less "dull" by boosting high frequencies with the "Graphic EQ" effect (See: https://manual.audacityteam.org/man/graphic_eq.html). The downside is that any hiss in the recording will also be boosted.

[pinkf]

It is a more than 40 years old concert recording (made with a Philips mono casette recorder) within the audiance.

[steve]

After recording the tape, Export a backup copy as a WAV file (so that if you mess up you won't have to re-record).

If there's noticeable tape hiss, use "Noise Reduction" to reduce it (note that too much noise reduction will damage the remaining sound)
See: https://manual.audacityteam.org/man/noi ... ction.html

If the audience applause is too loud, the "Envelope tool" to reduce the audience noise between songs.
See: https://manual.audacityteam.org/man/envelope_tool.html

Use the Graphic EQ to tweak the sound as necessary.
See: https://manual.audacityteam.org/man/graphic_eq.html

[Trebor]

I have an old concert recording in mono. This one sounds rather dull.
I want to refresh the sound so that the recording will sound fresh and sparkling.

A hint of pseudo-stereo ?.

[* Other pseudo-stereo plug-ins are available].