Stem mixing in Mixxx? Please add your thoughts...

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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby Pegasus » Wed May 16, 2012 2:16 pm

I just found dhj's article here: http://www.digitaldjtips.com/2012/03/ho ... y-djs-mix/

Have fun at FutureEverything!
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby joshontheweb » Tue Jul 10, 2012 5:39 pm

Hey guys, Pegasus tipped me off to this thread and suggested I might post here. I am currently working on a project called http://soundkeep.com. The idea is to make a 'github for music'. Essentially it would be a place where you could upload a song you created in multi-track form. Then others who like the song or individual tracks within the song could remix (fork) your song and use all or some of it to create a derivative work. All tracks will be released through Creative Commons in the hopes of creative a large body of license free stem tracks. If it is successful we will be able to fill the void of stem tracks. It would be interesting to at some point provide an api for other apps like Mixxx to easily search and include stem tracks into projects. Does this sound intriguing? Any suggestions or feedback on the idea are welcome. You can see a prototype of our idea here [url]dev.soundkeep.com[/url]. It is incomplete and partially broken right now, but will give you an idea of what we have in mind. Thanks in advance for any feedback.
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby dhj » Mon Sep 03, 2012 11:39 am

Hi Josh,

Thanks for the info on Soundkeep, I'll watch out for the launch :-)

Cheers!

Daniel
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby KikinouFR » Sat Mar 26, 2016 11:36 pm

And support for "Stems" developped by Native Instruments (http://www.stems-music.com/)? :?: ?
As an open multi-track audio format, Stems enhances creative possibilities for DJs, producers, and live performers.


Specs is in open source! :idea: :idea: (http://www.stems-music.com/stems-is-for-developers/)
Designed to be an open audio file format, Stems can be implemented into software or hardware of any kind. Developers can access the specifications and libraries required for integrating Stems into their music production and performance tools, or media players.

If you develop software or hardware, you can make it Stems-compatible. The Stems specifications are open, so you can download all the necessary resources needed to integrate Stems in your project right here.


BUT, nothing is perfect because it use an MPEG-4 Container (patented; royalties etc...) :roll:
ABOUT THE FORMAT

Stem files use the .mp4 container format to store the four individual stems of a track within a single file. Using the file extension .stem.mp4, this single file can be managed just like an mp3 file. A standard master version of the track is also included in the file and can even be played in stereo with any compatible audio player following standard mp4 specs, like iTunes for example. To play with a track’s individual stems, Stem-compatible software or hardware is required.


More info:
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby mevsme » Sun May 01, 2016 7:08 am

There are not many HQ multi tracks in the internet. In most cases those are just DIY covers of original songs. Usually you can grab the good ones from remix contests (play.beatport, indaba music, torrents), etc. But what you can really do with them on the fly, during playing set? Turn off vocals? Now you need not only beat matching, but strict key matching, volume, compression. Any DAW (especially like Ableton or Giada) will be far more convenient for experiments like that and saving results. Don't need to think about mixxx if it have 4 channels, it have become a mixing\arrangement tool. It is music mixing tool, not karaoke, where you can turn off voice. So I doubt it is useful there. You need control buttons for every multi track in a track... where to put them? Solo, mute, balance. Sounds like making DAW of Mixxx.

UPD
Oh, now I see. It's a new file format supported by NI. Interesting. Let's have a look if many labels gonna release stems. Is it DRM free? And mp4 container... I wonder why OGG is not so good?
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby r41 » Thu Apr 27, 2017 7:18 am

Studiofinn wrote:Hi
I have altered a Mixxx skin to show what we are trying to create. any feedback or suggestions welcome

Finn


Damn this really looks good. Hi, if this comes true, it would be really awesome.
Additionally, if possible, ability to assign each stem to individual audio output of soundcard. Peace.
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby Michael Z Freeman » Thu May 25, 2017 6:00 pm

There's apparently licensing problems for Mixxx when it comes to the NI STEM format. But Audacity seem to have managed it. If it can't be solved then it's relativly trivial to convert the MP4.

However FLAC will only do 8 channels (at least that's the max on Audacity) while, again in Audacity, WAV is a max of 32. As NI MP4 STEM seems to be the established STEM standard and uses 10 channels, 1 for the main track and the other 4 for the STEM parts it seems that FLAC would not be a suitable format for people converting their NI STEM MP4's to Mixxx. WAV, OGG, AIFF and AC3 all do more than 10 channels.

Here is the current "bug" report: https://bugs.launchpad.net/mixxx/+bug/1438746
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby mevsme » Fri Jul 14, 2017 1:10 am

Beatport now selling stems
NI pushes their format and it doesn't stand still

https://www.beatport.com/stems/about

Maybe dear devs would implement this someday somehow )
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby Be. » Fri Jul 14, 2017 1:41 am

So Native Instruments ended up contradicting their original statements, or they don't understand what an open standard is. After taking a long time to release the SDK, they released it and the format specification under a proprietary license. I think it would be possible to do a clean room design, but that's a lot of work, and probably shouldn't be done without talking to a lawyer. Refer to the discussion on the Launchpad bug.
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Re: Stem mixing in Mixxx? Please add your thoughts...

Postby milk » Fri Feb 08, 2019 12:03 am

This would go well with the multitrack aspect of tracker module music files.

When built with the functionality, mixxx currently renders module files stereo on load, but being able to manipulate each channel separately would open up many possibilities.
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