Audacity Forum

Not enough information.
Which version of Audacity?
What are you trying to do?
What's the problem?

1) Import the two files into Audacity.
2) "Ctrl + A" (select All)
3) Tracks menu > Align tracks end to end (the exact menu item depends on which version of Audacity)
4) Export.

Not enough information.
Which version of Audacity?
What are you trying to do?
What's the problem?

See the section "How can I prevent clicky recordings on Mac?" in the FAQs: https://manual.audacityteam.org/man/faq ... ac_crackle

Ensure that you select the "loopback" option as the recording device, and that it matches the device that you are using to play the audio. For example, if you play through USB speakers, then it's the "USB speaker loopback" that you need to select as the recording device.

What are you trying to record?
What are your settings in the device toolbar?

Check in the Windows Sounds settings and ensure that both the playback and recording devices are set to a sample rate of 44100.

here is a nasty yet subtle hiss on my final mixes The USB Audio I/O on the ZED436 is 16-bit. If you're recording the main out, then you should aim for a peak level of around - 6dB (must always be below zero). The recording level in Windows should be set to maximum, so that (according to the A&H...

This issue has been reported a few times over the last couple of years. It is logged on the Audacity bug tracker, but none of the developers or QA have been able to reproduce the problem. It appears to be due to a bug in WxWidgets 3.1.1 (which Audacity uses) that only affects a very few PCs. Other u...

Not enough information to determine the cause, but that project is irrecoverably damaged. For future work, I'd suggest that you use the current 2.3.2 version of Audacity, which is available via the Audacity website: https://www.audacityteam.org/download/windows/ A couple of tips to avoid losing work...