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Dependencies

Everything on this page is optional! Most resamplers don't need any of these tools.

Encoders

Some resamplers need additional libraries for full functionality. This isn't normally a problem as most UTAU banks use WAV files, but for the sake of file sizes, some authors release recordings in different formats.

LAME is an MP3 decoder. As the distribution license has changed recently, it may be already installed.
FLAC is a lossless audio decoder and compressor that can be used to create much smaller file sizes than WAV at equal audio quality output.
Ogg Vorbis is a compressed and lossy audio format which normally results in similar filesize and quality to MP3.
FFmpeg is a package that normally includes LAME, Ogg and a number of video encoders, and may sometimes provide an easier install option.

Prebuilt Libraries

Even if they're essential to a program working, these can't normally be bundled with installs due to conflicting open source licenses and patent restrictions.
For example, LAME is still only officially distributed as source code.

All three libraries for additional formats Doppeltler can use are hosted at RareWares.org:

You might already have FLAC at least..?

It's quite likely there'll be a package with one or all of these for your specific distribution. It's worth checking your documentation!

Wait, these are familiar. It isn't the first time I've had to install these! Maybe I don't need it...?

You might have downloaded something like FFmpeg for Audacity at some point, but unless you manually set environment variables to point to the files, you're going to have to install them again. Sorry!

System Envrionment Variables

Here is a detailed explanation on setting system environment variables on both Windows and Unix based systems.
For using Doppeltler, follow the instructions in the readme:

  • Set lame.exe at lamepath
  • Set flac.exe at flacpath
  • Set oggdec.exe at oggpath

FFTW

Some older resamplers based off WORLD need the Fastest Fourier Transform in the West package.

Sample Editors

  • Audacity is free, cross platform and open source. It's fast and it works.

  • Reaper is WinRAR free, cross platform and has a learning curve, but is extremely powerful and has more functionality than Audacity.