Ok here is my 20 Steps Step by Step tuturial:
Let me know if you were successful!
I've been using Max for years. The only complaint I have is the file conversion window doesn't automatically open - you have to select "File->Convert Files...". Then it's just a matter of selecting (or drag-n-dropping) the files I want to convert onto the window.
I used to use Switch, but it's no longer free.
dBpoweramp is the best program I've found for converting audio files. It supports multiple codecs. It does multi-core/thread encoding, so on my PC, for example, it will encode up to 8 tracks at once. It preserves the tag data across encodes. It allows you to specify per-codec settings (bit rate etc.) and add extra options such as deleting the source files after a successful encode. It'll remember your settings across sessions. It's also very easy to use and includes batch encoding.
If you want something free, try Switch: -
I've heard good things about it, although I've not tried it.
If your source files are WAV, you might want to consider using a lossless codec such as FLAC or Apple Lossless instead. That way you can shrink the files down by up to 50%, get full tagging support, but without losing any audio quality whatsoever. FLAC is supported natively in Windows 10, on Android phones, and with DVS software such as Serato and Traktor, so I use that, but obviously which codec to use will depend on the DJ hardware/software you're using.
I've used Switch: http://www.nch.com.au/switch/ before and it's worked well. It sounds like it preserves metadata, but I have no experience with that, so buyer beware. Used it for batch converting wavs to ogg for SFX in a game.
Well there's probably no 48Khz version of the song because music that's not tied to a visual medium is most always at 44.1.
Use a program like Switch or MPEG Streamclip or even just do an export of the audio as a 48Khz WAV file in your NLE.
Also not trying to be a dick and I get that you're just kinda starting out but before tackling any bigger projects get your post work flow down and understand codecs/specs like the back of your hand it'll make everything easier. Cheers.
Maybe you can convert the audio into a format that is supported by your players. [mp3, WAV, etc] I bought this software, and it works perfectly. You can download a free trial version, which will hopefully last long enough to help you. Best of luck!
I record at 48khz, then when exporting downsample to 44.1 and export the required format.
This option is available in most DAW's and will be on the export/render screen.
For batch converting files without a daw I use Switch, it's freeware but works perfectly.
I agree with what Ycros is saying.
OP: Are you trying to reduce the size of the frozen files in your project? I suppose you could convert them and as long as the location or filename doesn't change it could still work. You could use the Switch file converter. http://www.nch.com.au/switch/
If I am bouncing audio and I have several hundred stems to generate, here is what I do:
Freeze all tracks
Open Freeze File Folder
Copy them to another folder
Use software to rename them using windows sort order (I wrote a script for this)
Use Switch Sound File Converter to convert them all to the bitrate I want, usually 44/16
I like using Switch Sound Converter for the same reason, but I have to use Realplayer to download the clip, then convert it. This is much more convenient, thank you.
Switch will basically convert any audio format to any other including batch convert whilst keeping the original folder/s structure. It's not free but for $30 it's really a great app to have around.
There's also a free version ( link to download ) but I'm not sure if it covers .flac files.
Here is some software that will do the job: http://www.nch.com.au/switch/index.html
Download the free version which should serve your needs. I've used it from time to time, I know it has purchase notices but I have a version from 2009 that works perfectly as an unlicensed free version.
From what i can gather from the website, Switch "Plus" allows batch converting and a few other "Pro" features. Its less than a meg to download anyway.
Switch is pretty straight-forward to use.
Edit: CNET review of Switch.
I use this which is a free trial, then you can downgrade to the free version. Which I haven't really seen any difference in the free version. Anyway, maybe you can take the one back that you paid for? http://www.nch.com.au/switch/mp3.html