I have a recording being split into two sources: HandyCam and PC.
From my HandyCam I did the video recording with 48,0 KHz audio setting. See attached file.
From my PC, using Audacity, and being connected to a Microphone I forgot, in Audacity Prefernces/Quality, to set the correct frequency value (48,0 KHz). Rather, I had 44,1 KHz.
Obviously, I saved the entire Audacity project so that I can manipulate the file.
Now, when I export the audio file from Audacity I alwasy see 44,1 KHz rather than 48,0
How to export it into 48,0 KHz?
After googling around I found this solution but do not know if this is the way to do it.
I changed project frequency from 44.1 to 48.0 KHz.
I went into Traces menu and selected resampling and choosed from dropdown 48000
I exported audio choosing WAV (Microsoft) signed 16-bit PCM
I checked on the output file and got:
Bitrate: 768 Kbps
Channel: 1 canale
Frequency: 48,0 KHz
Bit: 16 bit
If you set Default Sample Rate in Quality Preferences to 48000 Hz then all new projects will be at that rate.
However if you import a file that has some other sample rate into a new project, the project rate will change to the rate of that file.
There is rarely any need to explicitly use Tracks > Resample… if you are just playing and exporting. If the track is at 44100 Hz then you can just change the project rate to 48000 Hz. Playback will be resampled to 48000 Hz and the export will be at 48000 Hz. If you use Tracks > Resample… the only difference is that export will be faster because the resampling has already been done.
Occasionally, you might get bad playback if the project rate was very different to the track rate. If setting Real-time Conversion in Quality Preferences to “Low Quality (fastest)” still did not improve the bad playback, then you would want to use Tracks > Resample… .
If you were recording an overdub against playback of another track, you may want to use Tracks > Resample… to give the track the same rate that you want to record at.