This requires either a multi-channel sound card or multiple sound cards. Note that nearly all built-in sound cards have only one output pair, so you will need to add a second sound card with one or more additional output pairs. See below and the sound card information page for more information.
Mixxx 1.6.0 and up support recording mixes to WAV and AIFF files. Versions 1.9.0 and up also support recording to MP3 and Ogg Vorbis formats. To choose the format, click “Options”, then “Preferences”, then “Recording” and set the options as you like. To start recording your mix, click “Options” and select “Record Mix”. You will then be prompted to enter a file name, and after that, Mixxx will start recording about 5 seconds after you start playing a track. (So to get the beginning, play something, stop the deck, wait 5 seconds, then begin mixing.) When you're done recording, go back to “Options “and toggle “Record Mix” again, or just exit Mixxx.
“Best” is a matter of preference. It depends on what exactly you want to do with a controller. Do you want to control everything, or use one as a bunch of extra buttons in conjunction with turntables? Mixxx 1.7 and up has the ability to provide comprehensive support for any MIDI controller due to its scripting engine, and it ships with mappings for a number of popular controllers, a complete list of which can be found on the Hardware Compatibility page. Community-contributed mappings for more controllers can be found on the forums.
Yes, as of v1.6.0. This means you can have the headphone output coming out of one sound card and have the master output going out another.
But please note that due to natural differences in clock crystals even between two cards of the exact same model, it's not possible to have multiple cards work synchronously. As a result, you will likely hear pops or skips when using more than one card. Mixxx v1.9.2 and up will lock to the clock of the card used for the Master output so at least these pops aren't heard on the dance floor, but it's always recommended to instead use a single sound card with multiple stereo outputs, such as on a true surround (5.1 channel) sound card: you can use the “front” output as your master output, and plug your headphones into the “rear” output for cueing.
Be aware that sound cards are usually marketed with the number of monaural channels they have, and you need two mono channels for one stereo signal, so you would need at least a four-output card to have Master and Headphones outputs on the same card. (And if you're using vinyl control with two decks, that means you need a card with at least four inputs too.)
Yes. There are two ways to do it depending on what you want to achieve:
See the Vinyl Control page.
No, Mixxx does not write to or move any files in your library. It's safe to use Mixxx with your iTunes library - Mixxx will not change anything in your library.
As of Mixxx 1.9.0, there is an option to write metadata changes back to the file tags (e.g. ID3, Xiph/Ogg, APE) but this is disabled by default. You can enable it from the Mixxx Library Preferences.
As of release 1.6.0, the official Mixxx binary releases attempt to support the following operating systems equally:
We also support the following platforms through binary releases on a best effort basis, not all beta releases will be built for these platforms and full releases often lag behind the release cycle by a month or so:
Many Linux distributions (e.g. Debian) bundle their own copy of Mixxx rather than relying on our official releases, check with your distribution for more details.
Of course as an open source project, source is always available to build for whatever platform you work on, either a Linux distribution which doesn't provide Mixxx packages or something more exotic. Historically Mixxx has been known to compile on FreeBSD.
We are always happy to hear from people building Mixxx on other platforms, whether you are doing a one-time build for yourself or maintaining a Mixxx package for a distribution please get in touch.
As of release 1.8.x, Mixxx supports the following file formats:
If your music isn't currently in one of these formats (or you don't have a suitable plugin installed,) it won't show up in the Mixxx library. You'll need to use a program like Sox or Audacity to convert it.
Mixxx performs sample rate conversion on the fly.
Note that the quality of the re-sampling depends on the setting of the pitch behaviour. Having key lock disabled (“vinyl emulation” in 1.8.x and below) will use linear interpolation, which doesn't sound very good (you will notice graininess and increased noise, especially obvious on high, long notes). When you enable key lock (“pitch-independent time-stretch” in 1.8.x and below,) Mixxx will use a vocoder-based algorithm from the SoundTouch library, which sounds a lot better (but is not recommended when scratching.)
Unfortunately, as of today (mixxx 1.10) this does not work automagically but needs some manual fiddling with the music configuration files. Here is one way of doing it:
.mixxx/in the home folder)
mixxxdb.sqlitethat can be found in your mixxx configuration folder
Execute SQLand enter:
update track_locations set directory = replace (directory, '/old/path/DJ/Music/', '/new/path/DJ/Music/'); update track_locations set location = replace (location, '/old/path/DJ/Music/', '/new/path/DJ/Music/');
where the old and new paths point to your corresponding music folders.
Run SQL. The above statements will replace all instances of
/new/path/DJ/Music/in the field of location and directory of track_locations table.
mixxxand under settings change your music folder to the new one. If you want you can do a rescan to check that the music files do not turn up twice suddenly (if you are on linux, do especially check music files which where in symbolically linked directory). Check if bpm and other meta infomation like cue points are still stored with the files.