Unwanted silence at the beginning of an audio file

[Alessandra8]

Hi,
I’m quite a newbie to Audacity and I’m having an issue with some audio files I’m trying to modify. After selecting the part of the recording that I need and clicking on “trim audio outside selection”, I try to export to a Wav format (16000 Hz, 32-bit float). The audio file looks good in Audacity, but when I close the project and try to reproduce my file, it turns out that lots of unnecessary silence has been added before the start of my audio selection. Could someone help me with that?

[Trebor]

@Alessandra8

lots of unnecessary silence has been added before the start of my audio selection.

If you’re using Audacity 3, tick the box I’ve colored yellow …

https://manual.audacityteam.org/man/import_export_preferences.html