More DAW-like than ever - iOS7, Auria and Garageband

Arturia Mini with IAA transport shown

With iPad's iOS7, one of the more significant additions is inter-app audio. We've had Audiobus for quite awhile now but inter-app audio makes audio sharing more integral to the operating system (Apple is allowed to make use of all the internal routines - unlike 3rd parties - gives them a bit of an unfair advantage, but I digress).

At this time, only a handful of apps support IAA but more are adding it everyday and it will become increasingly common in the coming months. IAA makes synths on the iPad act much more like VST or AU plugins do on the desktop. You can easily plug-in compatible synths to any DAW that supports it and record right from the synth into the DAW without Audiobus routing or the need for other apps running (this means a lot on the limited memory/cpu of the iPad!).

Two DAWs that already support IAA are Auria and Apple's Garageband. In the case of Auria, you simply plug-in the synth like you would any of its insert effects. For garageband, you select an IAA track type directly. Both work reasonably well at this point and not too surprising, there are occasional bugs in both too. It will probably take a few patches/releases to get things completely stable, but IAA is already very usable.

Auria is becoming my favorite DAW lately due to its fantastic automation and effects bus but it is a bit pricey. One nice development is that if you have any of the Sugarbyte effects (Turnado, Wow) for the iPad, you don't have to pay twice to use them in Auria. It recognizes them and lets you use them as native plugins - Auria native plugins do work better than IAA provided you are using Auria.

Garageband has many great additions in the iOS7 release - the track limit is up to 16 on older iPads and 32 on the brand new ones - I think there is a purchase in my not too distant future. Another more hidden but significant feature in Garageband for iPad is that for the first time, you can easily transfer lossless mix downs out of Garageband. Garageband used to be the "roach motel" of DAWs - you could get sounds in but couldn't get them out. Now you can mix down and select "Open with" to open the mixed down AIFF in another app. Not all apps support "open in", but one significant one that is is AudioShare which in turn lets you copy/paste anywhere you wish - so for the first time, Garageband plays well with others.

The piece below was created in Auria with only Inter-app audio synths. I used the Arturia Oberheim SEM synth for the arpeggios, Waldorf's Nave for some of the leads and the Arturia Mini for the bass. There were a few crashes but the entire thing was driven from within Auria and mixed/mastered and posted. I think this will be a huge development for iPad music moving forward!

Just an aside, the Arturia synths are available on desktop for roughly $100 each - on the iPad, they are $9.99 and sound extremely close to the desktop versions!

Noatikl hits the iPad! Generative music goes portable!

I'm just back from a wonderful vacation in Bermuda and was thrilled to see that one of my favorite desktop music tools is now available on the iPad - Intermorphic's Noatikl. If you're read my older posts, you know that Noatikl is basically a way to program generative music - you give your voices various rules to follow and it emits the MIDI events to play the way you instructed it too. Sort of like playing God, and who doesn't like that from time to time!

Noatikl comes with a built-in modular synth (Partikl) that you can use immediately without having to hook up virtual MIDI channels but to really get some great sounds, you will probably want to take advantage of Virtual MIDI and use your favorite synths or samplers on the iPad.

On the desktop version, its fairly easy to use up to 16 channels and the CPUs are usually up for the task. The first thing to get used to on the iPad is that you have to conserve the somewhat meager CPU on the iPad. Open up 3-4 different music apps at once and run them all in the background and you'll quickly find this a challenge!

As most initial releases go, this one has a few semi-serious bugs and niggles but I'm confident they will be addressed and there are workarounds for most of them - the worst I saw was that editing a pattern has to be done in "portrait mode" at the moment. Should be sorted in the next release.

Without going too deep into generative music, rules etc, I'll walk through what I did to create a nice chillout piece on the iPad.

First off, here it is:


I decided to use some "lighter" tools to create the sounds and record them so for this example, I avoided the excellent Auria DAW and stuck to the very light and usable MultiTrack DAW for recording.

In Noatikl, drum sounds all go to MIDI channel 10 and you create one voice for each "drum" and attach all of them to channel 10. To do this, you probably want to use rhythmic patterns instead of note patterns and you should make each voice use the GM "patch" you specify. Try to use drum kits that respect the General MIDI mappings.

In my case I used Drumjam - the "lower portion" where you can drag a kit to the pads. From Noatikl, I created a number of "fixed pattern" voices that play the exact rhythms you specify. The key to making things interesting is to create more than one pattern and give each one a "probability" of firing. So for the bass drum, I created a few patterns in Noatikl - one that played on beats 1 and 3, another with some syncopation and a third that only played once. Each had a weighted probability of 33 so that when Noatikl emits the MIDI, there will be some variation.

I did the same for the snare and high hats and then I put a very low probability on a beat 4 cymbal crash. This created a very nice laid back drumbeat on the song above. To further make things less "robotic", Noatikl lets you put "micro-delays" on each note and I varied each note from 2-4 microseconds to make the drumming a little more human sounding.

I used Virtual MIDI to hook up Drumjam to Noatikl via MIDI channel 10 so that when I start Noatikl playing, Drumjam puts out the sounds.

Next I wanted to add bass, guitar and an organ (on MIDI channels 1,2 and 3 respectively). To minimize the CPU usage, I chose to use SampleTank for the iPad. This is a good choice with Noatikl since just one instance of the app can take up to 4 MIDI channels in. This preserves CPU!

I created a simple rhythm for the bass, constrained it to a note range and told Noatikl to use a Pentatonic scale for the piece. I used a similar set of rhythmic patterns for the bassline again with a little randomness to keep it interesting.

For the Guitar, I did the same but then went into the "Chord" section of Noatikl and told the voice to use at least 2 notes and at most 5 - corresponds to how many strings. Also in the "Chord" section I put a  little delay between each note (1-2 microseconds) to give it a "strum" sound.

For the Organ, I programmed the voice to follow the guitar voice one beat behind and to harmonize with it in the Pentatonic scale. For notes I used between 1-3 notes at a time also with a slight random delay.

So with Sampletank, Drumjam and Noatikl open, I played around with the voices and tweaked until I got a nice evolving background sound. Once I liked it, it was time to fire up AudioBus and MultiTrack DAW to do some recording.

One confusing thing in Noatikl is that it can be a "source" for Audiobus, but this will only work if you are using the built-in Partikl synth. If you are doing Virtual MIDI, leave this unchecked and put the synths you are controlling into the inputs to Audiobus (in my case, SampleTank and Drumjam).

I then started MultiTrack DAW recording and pressed play in Noatikl. As the song was generating and recording, I occasionally muted and unmuted a few voices in Noatikl to bring things in and out.

After I got the recording in MultiTrack DAW, I decided to put a traditional "played" synth part as the lead. I closed Noatikl, put Nave into the Audiobus input and played back the recorded tracks while performing the lead part in Nave.

A few takes later, back to MultiTrack DAW to add some light effects, compression and fades and the song was complete.

I highly recommend that you check out Noatikl in more detail if you get the chance.