Here’s a switcher story of a different color: from the Mac, to Linux. It’s one thing to talk about operating systems and free software in theory, or to hear from died-in-the-wool advocates of their platform of choice. In this case, we turn to Kim Cascone, an experienced and gifted musician and composer with an impressive resume of releases and a rich sens of sound. This isn’t someone advocating any platform over another: it’s an on-the-ground, in-the-trenches, real-world example of how Kim made this set of tools work in his music, in the studio and on tour. A particular thanks, as he’s given me some new ideas for how to work with Audacity and Baudline. Kim puts his current setup in the context of decades of computer work. Even if you’re not ready to leave Mac (or Windows) just yet, Kim’s workflow here could help if you’re looking to make a Linux netbook or laptop more productive in your existing rig.

Stay tuned, as I’ll have some other stories on how to make your Linux music workflow effective creatively, particularly in regards to leaping over some of the setup hurdles Kim describes. -PK

Historical Evolution

I’ve been working with computers since the 1970s. Inspired by the work of composer David Behrman, I taught myself assembly language and programmed a simple digital sequencer on a KIM-1, single-board microcomputer, controlling an Aries modular synthesizer I had built. I discovered a then-new magazine called Computer Music Journal at the local computer shop and bought every copy I could get my hands on. (I still have them, too.) Later, I helped a friend’s father, an executive at IBM, unpack and set up the first personal computer IBM made. The manuals alone took up two or three feet of bookshelf space.

Fast-forward through a couple of decades of owning Commodore 64s, Apple computers, and PCs. In 1997, I purchased my first laptop: a woefully-underpowered Compaq Presario. It wasn’t fast enough for real-time audio, so I had to render sound files to hard disk using the audio programming language Csound. I created many of the sounds this way for my CD ‘blueCube( )’. But the capacity to work anywhere was enough for me to give up ever owning another desktop computer.

Frustrated with the ‘code-compile-listen’ process of working with Csound and wanting to work in real-time, I switched to the graphical multi-media programming language Max/MSP, which necessitated a move back to Apple hardware, so I bought a PowerBook. Having Max/MSP running on a laptop was the perfect environment for me. I could build the tools I needed whenever an idea presented itself. The computer functioned as both sound design studio and stage instrument. I worked this way for ten years, faithfully following the upgrade path set forth by Apple and the various developers of the software I used. Continually upgrading required a substantial financial commitment on my part.

Apple Seeds of Discontent

When I’m on the road, I use my laptop as a music studio, performance instrument, and administration office. I don’t like surprises on the road. Having a computer fail means a loss of income, and makes for an embarrassing moment if the failure happens during a performance. If watching laptop music bores some people, watching a musician reboot is even worse. So to be safe, I stress-test all new hardware or software in my studio for at least a month before I take it on the road. Max/MSP patches run for hours, software is used for weeks, and hardware is left on for days at a time to help induce failure before I leave home. But as fate would have it, an iBook I was touring with died a few years ago. I brought the laptop into an Apple repair shop in Berlin, where a technician diagnosed the problem as a faulty logic board. The failure rate on logic boards was high for that model of iBook, and in response to public pressure, Apple instituted a logic board replacement program. Luckily, my laptop qualified and the logic board was replaced for free. But the failure and ongoing buggy behavior impacted my work schedule and added to the stress of touring.

I’ve now replaced logic boards on three computers; the other two I paid for out of pocket. The out-of-warranty cost of replacing a logic board on an Apple laptop is around six hundred dollars — cheaper than buying a brand new laptop, but still significant.

If you make your living with applications that run on OS X, there are no options if a laptop fails. You either repair expensive Apple hardware or buy new expensive Apple hardware. This is called ‘vendor lock-in.’

Then, during my 2009 spring tour, my PowerBook G4 exhibited signs of age, with missing keystrokes, intermittent backlighting, the failure of a RAM slot, and reduced performance. As an alternative to repairing the PowerBook, I investigated what a new MacBook Pro and upgrades for all my software would cost. A quick back-of-a-napkin estimate came to approximately $3,000, not including the time it would take tweaking and testing to make it work for the tour. If the netbook revolution hadn’t come along and spawn a price-wars on laptops, I might have proceeded to increase my credit card debt. But as a wise uncle once advised, “you invest either your time or your money; never both.”

Meeting Ubuntu

I had tried Linux in 2005 on PowerPC-based Mac laptops, though at the time I couldn’t get audio working, even after extensive tweaking. But I had kept an eye on Ubuntu ever since. After considering MacBook Pro prices, I checked out the new netbooks coming to market and picked up a refurbished Dell Inspiron Mini 9 with Ubuntu pre-installed.

I loaded up my Dell with all a selection of Linux audio applications and brought it with me on tour as an emergency backup to my tottering PowerBook. The Mini 9 could play back four tracks of 24-bit/96 kHz audio with effects – not bad for a netbook. The solution to my financial constraint became clear, and I bought a refurbished Dell Studio 15, installed Ubuntu on it, and set it up for sound production and business administration. The total cost was around $600 for the laptop plus a donation to a software developer — a far cry from the $3000.00 price tag and weeks of my time it would have cost me to stay locked-in to Apple. After a couple of months of solid use, I have had no problems with my laptop or Ubuntu. Both have performed flawlessly, remaining stable and reliable.

Getting Past Ubuntu Audio Complexities

There are a few differences between how audio works on Mac OS X and how it works on Ubuntu Linux. OS X uses the Core Audio and Core MIDI frameworks for audio and MIDI services, respectively. All applications requiring audio services on OS X talk to Core Audio, which mixes and routes multiple audio streams to the desired locations. Core Audio is simple, monolithic, and easy to set up, and all the end-user controls are accessible from one panel. You can even create a single aggregate device from multiple sound cards if you need more inputs or outputs than one sound card can supply. To Apple’s credit, Core Audio and the applications that make use of it are the reason why you see so many laptop musicians seated behind glowing Apple logos on stage.

On Ubuntu, audio is a rather different story. Apple’s slogan ‘Think Different’ would be good advice for musicians encountering Ubuntu’s audio setup for the first time. Audio in Ubuntu can appear at first to be a confusing jumble of servers, layers, services, and terminology. Go to System->Preferences->Sound, click on the Devices tab, and check out the pulldown menu next to ‘Sound Events’ at the top of the panel. You will see various acronyms, possibly including cryptic-looking technologies like OSS, ESD, ALSA, JACK, and Pulse Audio. These acronyms represent a byzantine tangle of conflicting technologies that over time, and due to political reasons or backwards compatibility, have ended up cohabiting with one another. ‘Frankenstein’ might be an accurate metaphor here.

Thankfully, there is a simpler way, which is the combination of ALSA [a high-performance, kernel-level audio and MIDI system] and JACK [a system for creating low-latency audio, MIDI, and sync connections between applications and computers]. The battle-scarred among us have learned to ignore all the other audio cruft bolted on to Ubuntu and just use ALSA and JACK. One can think of the ALSA/JACK stack, the heart of most pro Linux studios, as the Core Audio of Linux and in my opinion Jack should be the first thing installed on any musicians laptop. I’d go so far as to suggest placing it in the Startup Applications so it’s always running.

The ALSA/JACK combination is a little more complex to set up and tweak than Apple’s Core Audio, but there’s a lot of good information online. [Ed.: ALSA, JACK, and the real-time Linux kernel also have some advantages over Mac OS X that can be worth the effort. While JACK has been ported to Mac, Linux has more JACK-aware tools, which is necessary for transport sync. Just as importantly, once configured, you can build rigs with Linux that have greater low-latency performance than may be practical on Mac or Windows. In other words, while it may require an investment of time, it can be both free and better! -PK]

Workflow

Over the past ten years, I’ve developed a workflow that has worked well in the studio and on the road. Since I created most of my tools in Max/MSP, they could shape-shift to fit any musical task I encountered. A sound mangling tool I’d written for studio use, for instance, I could then adapt for a performance with Tony Conrad. I modified parts of my performance patch for sound installations. This environment served me well over the years – until recently, when my aesthetic focus changed from using randomness in my work to taking a more deterministic approach. This happened to coincide with my change of operating systems.

I do a lot of location recording while on tour. My rig consists of an Olympus LS-10 digital recorder and an Audio Technica AT-822 single-point stereo microphone. I record at 96kHz/24-bit to a 16GB SDHC card in the LS-10. When I want to audition sound files in the field, I use my netbook’s SDHC reader, renaming sound files directly on the card. I can look at some of the files in Baudline if I need to check for low-frequency rumble or technical anomalies. I have come to use Baudline on a daily basis.

Back in the studio, using the sound editing program Audacity, I remove voice slates, trim heads and tails, adjust gain and EQ as needed, then save them to a project folder. And because I don’t like surprises in the studio, either, this folder gets backed up onto a remote network drive as well as a local USB drive.

Building my sound library takes weeks or months. During this time, I start filling a notebook with ideas, drawings, plans and marginalia, from which a score emerges. I import all my project sound files into the open-source Digital Audio Workstation Ardour, arranging them to loosely resemble the score in my notebook. Once my Ardour session is set up, I move sounds around, try different effects, create new textures by layering, then render and re-import sub-mixes until the piece starts to take shape. I use a KORG nanoKONTROL as a mixing surface. I assign faders, pans and switches assigned to the DAW allowing me to quickly play around with different mix ideas.

Once the piece sounds finished, I mix down to a stereo .WAV file at 24-bit/44.1kHz, without using compression or EQ on the mix bus. Tip: mastering engineers really appreciate getting a raw 24-bit master that hasn’t been fiddled around with by the musician. For performances, I also use Ardour and the nanoKONTROL to do an acousmatic presentation. This version of the Ardour session will have compression and/or EQ on the mix bus, since I want the material to sound more polished. As a side note: I am looking into using the mastering tool JAMin [JACK Audio Mastering Interface] for this purpose in the future.

Sayonara, Apple

After ten years of working on Apple laptops, I’ve left the fold. Not only was the expense of owning and maintaining Apple hardware a key factor in my switch, but the operating system had become a frustration to me. Details like not having a tree-view in the right hand panel of the Finder window slowed me down. Ubuntu, on the other hand, feels more like an operating system made for grown-ups. And what’s especially nice is that Ubuntu scales nicely to the expertise of the user. Your cousin the computer geek or your Grandma can install and use Ubuntu and get as deep as they like. Combine this with the recent rash of cheap, powerful laptops, and Ubuntu’s market share is bound to grow.

A Request

It’s important that kernel and audio application developers (1) ensure all audio creation software has support for JACK, (2) improve and update tools for JACK to make it easy for musicians to install, configure, and use, (3) ship distros with the realtime kernel already tested and configured for use, (4) to integrate the real-time kernel patches into the mainline kernel. [Ed.: On each of these points, distributions and kernel builds are steadily improving, partly thanks to feedback from communities like the music production community. The realtime kernel likely won't be the default, mainline kernel, but it's important to have well-maintained optional packages at the very least. That doesn't mean you have to wait for improvements to happen, though, and in future articles I'll talk a bit about how you can configure your system now to take advantage of this functionality. -PK]

Most importantly, consider paying a subscription to support developers of JACK and your favorite Linux audio software, or, if you can write code, proofread text, write a manual, do a translation, contribute graphic design, or create content; please help by contributing something to the development of the software you use.

I would like to thank Ken Restivo, Mike Rooke, Paul Davis, Philip DeTullio, Jörn Nettingsmeier and Matt Griffen at Canonical Ltd. for advice and inspiration in the writing of this article.

Kim Cascone is a composer, sound artist, touring musician, lecturer and writer. He lives in the San Francisco Bay Area with his wife Kathleen and son Cage.

Links:
http://www.osnews.com/story/6720/Introduction_to_Linux_Audio
http://www.alsa-project.org/main/index.php/Main_Page
http://ardour.org/node
http://audacity.sourceforge.net/
http://www.kokkinizita.net/linuxaudio/
http://www.baudline.com/
http://jackaudio.org/
http://drobilla.net/software/patchage/
http://www.ladspa.org/
http://lv2plug.in/
http://dssi.sourceforge.net/
http://jamin.sourceforge.net/en/about.html
http://linuxaudio.org/
http://www.ubuntu.com/
http://code.goto10.org/projects/puredyne/
http://www.bandshed.net/AVLinux.html
http://rt.wiki.kernel.org/index.php/Main_Page
http://www.pulseaudio.org/
http://developer.apple.com/audio/overview.html

Corrections / clarifications:

Ed.: I originally claimed that JACK Transport sync is not possible on the Mac OS X port of JACK. As kindly pointed out by a reader, this is not correct. JACK Transport-aware applications on the Mac will work.

Secondly, Kim argued that you could pull out a drive without having to go to a lot of trouble unmounting it first. At least one commenter argues that risks data loss, and given that users may be using something like FUSE to access foreign file systems like NTFS or the Mac’s own HFS+, I don’t yet know what the exact details will be. As I said in comments, however, Nautilus and the command line eject function for me are quicker and more effective than similar unmounting on Windows and Mac, so I still notch this one for Linux. -PK

Nick Maxwell of the excellent Nick’s Tutorials Ableton Live production site shares some free explorations with us, complete with downloads you can reverse-engineer the instruments and play with the topics the video cover. You can also use these in your own work, royalty-free.

I really like some of the work here, from a kitchen knife to a found sound bass. Here’s Nick:

“Icy Shimmer” Effect

In this video, I use a few field recordings of a kitchen knife being unsheathed as well as a door closing as the layers for the eventual sound effect.  Basic things like reversing the waveforms, filtering , panning, and retuning are employed.  I also go beyond that into some more interesting stuff like using a grain delay, simple delay, and an autofilter to create a little effects section to further realize the sound.

Download

Two Drums Created From Samples

In this video I use field recordings to create a kick drum as well as a snappy percussion sound. Some of the techniques include pitch and filter enveloping, working with non-zero crossings to create an interesting attack for your drum, layering samples, and more.

Download

“Jungle-Bass” (2 Parts)

In this video I use field recordings to create a bass patch that might be used in a Jungle or Drum’n'Bass production. I go over some basic intermodulation between LFO’s, describe the Saturator effect’s controls, use the morph parameter to create an interesting filter curve, and more. Additionally, I show two effects that were released with Live 8: The Limiter and the Frequency Shifter.

Download

Your pocket is bulging with power.

Wait… okay, that sounded really wrong.

Anyway, the mobile software revolution continues. There’s so much stuff out there that it can actually be hard to track. Here’s a round-up to help you navigate everything that’s going on this week.

And even if you can’t stand another word about the iPhone, consider this: the explosion of iPhone software, more than just a fad, illustrates what happens when you give developers tools to make multimedia capabilities easier, then provide a distribution outlet. I don’t love everything about the iTunes approach, but those are lessons that could easily be learned in desktop and mobile development alike. The iPhone platform, if nothing else, is surprisingly uncompromising in the sound and visual interaction departments, especially for a mobile platform. And even desktop platforms could benefit from this kind of distribution mechanism (see also: Steam for games).

Also, we do have some of the first signs that the iPhone won’t be alone for long – new functionality on Google’s Android could take that platform in new directions. See my next story, Android/Linux/open source fans.

Disclaimer: don’t worry. I’m not giving up on desktop apps. Relax. In fact, even now as I look across these applications, while there are lots of cool ideas, it’s still clear this is a nascent area. The experience is nowhere near as rich as you get on the desktop. But it’s nonetheless worth exploring some of the ideas before we return to our (more powerful) desktop applications for music.

Field Recording, Microphones for iPhone + iPod touch

The big news this week was FiRe, which promises to be the “first professional field recorder” for the iPhone and iPod touch. The developer behind it is one of which we’re already big fans: Audiofile Engineering. AE make Wave Editor, which has rapidly become the secret weapon of choice for Mac audio producers and sound designers, as well as the batch-processing Sample Manager and adoptive parents of the excellent Rax plug-in host. Anything these guys do would get our attention, and then they go and add specs you wouldn’t expect to see on the iPhone:

• Accurate real-time waveform display
• Live, touch-controlled waveform navigation
• Audio markers
• Broadcast WAVE metadata
• Instant downloading in multiple formats – and easy sharing via FTP, Web server, or even a SoundCloud account
• Tag recordings with location data
• Overdub mode
• VU meters for input and output
• Configurable time units
• Mic flexibility: use Blue Mikey, Alesis ProTrack or even the internal mic

US$5.99, available now.

(Update) Hardware Requirements:
iPhone 3G
iPod Touch (second generation)
First Generation iPhone (headset ONLY)

http://www.audiofile-engineering.com/

iTunes link (which is tricky to find otherwise)

Let’s just cut straight to it: this is, bar none, the most full-featured app out there. It’s the first one that would make me seriously consider using this platform for recording.

This, of course, raises the question of which mic you might want to use.

If you’re on the iPod touch, you don’t have even a built-in mono mic. (Don’t knock it: I’ve put together entire pieces based on simple mono mic samples. Creative sampling artists will use anything.)

Even on the first-generation iPod touch, you can use some simple solutions that will let you do basic sound.

The Smule blog has a terrific round-up of recommendations for touch owners wanting to use their Ocarina app. Their technical needs are much lighter than what you might need for FiRe, but this is still worth a look if you have any interest in recording at all:

Microphones for iPod Touch Ocarina

The Griffin SmartTalk wins out for 2G owners. I have Griffin’s TuneBuds mobile, which has worked well enough for applications like RjDj. (Note that Smule have managed to get their app working with the first-gen hardware; FiRe requires the newer generation.)

At the fancier end:

Blue Microphones’ Mikey is a slim-line stereo condenser capsule that plus into the iPod accessory port. It’s hinged so you can play with placement at least a little, and there’s basic gain control (3 settings). It runs about US$80 street, which means it doesn’t have to compete with standalone recorders. Update: Audiofile Engineering say they’ve seen some issues with FiRe and Blue Mikey, and can’t officially support the combination. Readers have had some issues themselves. If you’ve already got a Mikey, this might be worth a try, but otherwise, you can await updated information as Blue and Audiofile Engineering attempt to address the problem.

Specific update: The problem sounds as though it is the combination of the production Mikey with second-generation iPod touch units running the current OS. This is expected to be fixed with the next OS release. Stay tuned for more.

Tha Alesis ProTrack is even more impressive-looking, but at US$249 list, it does start to get into the realm of “you could just go buy a dedicated recorder.” The ProTrack extends the iPhone by adding a shell with an X/Y stereo mic pair – one that looks quite a lot like the Zoom H4 mics – and even has onboard XLR jacks and phantom power. You also get LED monitoring, a limiter, additional power (four AAA’s), a mic stand mount – basically, it turns your iPhone into a real mobile recorder.

The Alesis has its own app, but the Audiofile Engineering option is looking more powerful. Naturally, that’s the advantage of software – because the iPhone is essentially a computer, you can add whatever software you like.

I still think there’s a good place for a dedicated recorder. I’ve started testing the Zoom H4n, seen at right. (Not an iPhone hiding in a shell.) I’m already blown away – it corrects most of the navigation and quality issues with its predecessor, and unlike an iPod or iPhone, has fantastic battery life and onboard XLR input jacks. (Okay, the ProTrack does have XLR’s, so this is getting a little more interesting.) In other words, I’m not sure I’m giving up on dedicated recorders in favor of one of these yet. It’s still handy to have, though – and who says you can’t use both, given how essential it can be to have a backup recording in many situations?

Updated: Officially, here are the mics supported by FiRe:

• Alesis ProTrack – http://www.alesis.com/protrack
  (Requires iPhone 3G or 2nd gen. iPod Touch)
• Blue Mikey – http://www.bluemic.com/products/mikey
  (Requires iPhone 3G)

Thanks to Gaëtan Gravel and everyone else who sent this in.

Paul Van Dyk’s DJ Tools

This one was a bit of a surprise: Paul Van Dyk has released a DJ app, but it’s not just a quick, attention-grabbing, “DJ on your iPhone” gimmick. It’s more like a utility belt for DJs. I’m surprised to see that as a result it’s actually gotten some criticism. To me, finding some genuinely useful stuff you might want to have on your mobile device is the whole point.

What’s in there?

• BPM counter
• Frequency analyzer
• Noise level (the “NYPD Application”), with an oddly beautiful visualization
• Seismic reader (for testing your turntable, not for telling if there’s an earthquake happening – that you’ll probably figure for yourself)

And then some silly stuff, too – glow stick, anyone?

http://www.paulvandyk.com/

Not yet available – coming late May 2009

All interesting, but you know what this means: now we need Live PA Tools. (I can think of some ironic choices for that. Nominations welcome.)

Nine Inch Nails App

NIN, of course, had their app become available on 4/14. There’s been quite a lot written about it – so much, in fact, that I feel like the whole thing is a bit overhyped. The basic development here is that NIN is taking all their fan data and making it location specific. On the upside, this is a lot more than many high-profile bands have done with iPhone development. But then, these guys should be doing more – they have the budget to hire real developers. I do like the idea of fans being able to interact on their mobile device; that clearly makes a lot of sense. But few artists will inspire the kind of loyalty NIN does, which means the real question is, will someone be able to build a platform for everyone else? And if you are a more obscure artist, what should you be doing?

The app is free, so just a conduit for fans, really.

iTunes link

http://www.nin.com/

Gestural Beat Sharing, Celebrate Cinco De Mayo

ZoozBeat is the application I looked at in the fall: the idea is to make musical improvisation more accessible by allowing people to use fun gestures, taps, and the like to assemble beats. The software is not only for iPhone, but the powerful Nokia N95, too.

That story is worth checking out from the perspective of gestural music in general, not just iPhone or mobile apps:

Gestures, Mobile Music, and the “Low Floor” for Novices: ZooZBeat on iPhone, Nokia

The latest news: the guys have gotten funding, for one. More importantly to end users, ZOOZ Mobile is adding a sharing component, much like what we saw with Smule’s Leaf Trombone. New upgraded software adds a Latin component with Samba and Tejano rhythms and is ready-to-go for Cinco de Mayo. Sounds great to me – and the Latin market has been oddly ignored by a lot of musicians and developers. There are also new Pop, Hip-Hop, and Techno beats.

http://www.myzoozbeat.com/

Unusual Instruments

You’ve got plenty of faux-808 apps for the iPhone now. Our friend Henry Lowengard is taking a very different tack, with drone-friendly creations and detuned pianos. He describes this as well as I could, so here’s what he writes to tell us about.

Imagine a piano in a summer home on a small lake, far in the north of the Northeastern United States. Imagine the piano sitting there for 60 or 70 years, untuned and unmaintained.
The naturally prepared timbres of the Lake Piano are now here for you, each missing felt, each individual nuance of the key action and character-filled tones. Briskly recorded one summer in lo-fi, these samples also contain sounds of children, cats, screen doors, and the summer breeze.

The first version of Lake Piano is relatively minimal, Henry says, played as a double row of scrolling piano keys and the ambient sounds stolen from a videotape he recorded. Henry promises more playability and more ambience in an upcoming upgrade, but you’ll get that automatically when it’s done, so you can always go play now.

And for droning on and on – literally:

Hi Droning fans:
I just sent in my new droning app Droneo to Apple for approval, so with luck, it’ll be in the store next week.
I’ll send a more widely distributed email when that happens, but I though you (pl.) might like to take a look at the Droneo "instruction site", http://www.jhhl.net/iPhone/Droneo/ and listen to this tantalizing demo:
http://www.jhhl.net/iPhone/Droneo/Audio%20Examples/Mp3/complex1.mp3
It’s basically my iPhone SrutiBox simplified to 8 oscillator voices, allowing a little more CPU time for complexity, and removing the preconceptions about Carnatic music and harmonium sounds that Sruti box engenders with its somewhat unpronounceable name.

For more on the SrutiBox, see our previous story.

Okay, I’m exhausted. Back to the desktop.

And of course, for the best source of up-to-the-minute mobile music creation news – well beyond just iPhone – be sure to read:

Palm Sounds

First up, the new Mikey from Blue Microphones is a stereo condenser mic designed for the iPod (4G, 5G, 6G, iPod Nano 2G, 3G and iPod Classic). It’s not for the new iPod touch, but basically other iPod models are ready to go. You can’t set gain beyond three pre-determined levels, but it does double as a speaker and has a positionable head. I’m not sure I’d use it for really serious recording situations – Blue’s lower-end mics haven’t performed quite as well as their high-end models, as you’d expect – but it appears to be a pretty nice solution for a lot of situations, and fantastic for recording practice sessions and the like. At US$79.99 list, it’s practically an impulse buy. I’m curious to hear how it stacks up to the cheaper digital recorders out there, like those from Zoom.

Blue Microphones [A product page for Mikey was unavailable at press time]

The Mikey isn’t for the iPhone / iPod touch, but we have seen a slew of new recording apps out there, like Griffin’s iTalk (as seen on ZDNet from our friend Jason O’Grady). Most of these are pretty dead-simple – the Apple SDK includes a recording mechanism – so the primary engineering challenge is just writing a tool to get the audio from your mobile device to your computer, since (cough) Apple left that bit out.

Sonoma Wire Works’ FourTrack is a different animal. It’s a full-blown four-track recorder (well, at least you can record one track at a time and play back four). I could try to talk about it, but the talented Eliot Van Buskirk over at Wired.com’s Listening Post does a great job:

The New Hotness: FourTrack Audio Recorder for iPhone, iPod Touch

Sonoma FourTrack: Product Page, iTunes App Store

Here’s the catch with FourTrack and a lot of these apps, though: what do you do for a mic? Options are extremely limited on the iPhone and second-generation iPod touch – at least until Blue Mics releases a Mikey for iPhone. Pro options, or anything coming close to it, are out of the question.

And those of us with first-generation iPod touch models are entirely out of luck. While prior to 2.x firmware, hackers had managed to make DIY solutions for mic support on the first-generation iPod touch, that solution is still missing on the second-generation unit. Part of the fault appears to be Apple’s: they left out software support in the earlier models, and they aren’t exactly making third-party hardware makers’ job easy, either. It’s a problem with phones in general: the Google Android-based G1 from TMobile doesn’t even have a standard headphone jack, let alone mic input.

For that reason, I can’t personally comment on the FourTrack because my iPod is useless with it; I defer to Eliot for that. But here’s the feature list – US$9.99 and (with the iPod touch 2nd generation, required) a third-party mic sets you up.

• Track Count – 4
• Track Length – unlimited
• Recording Quality – 16 bit, 44.1 kHz
• Calibrated Meters – accurately monitor record and playback levels
• Recording Clip Lights – ensure input levels do not cause distortion
• Calibrated Faders – accurately adjust playback level of each track
• Pan Control – move tracks from left to right
• Time Line – seek to anywhere in your song instantly
• Shuttle Wheel – accurately move within your song
• Slide-to-Record – prevents over-writing your tracks
• Latency Compensation – accurate to within 1ms
• Compressor-Limiter – automatically fattens sound of the output mix
• Song List – unlimited song count
• WiFi Sync – copy recordings to a desktop computer

Part of the beauty of mobile apps is that someone will find some novel use for them. But for many, I fear that mobile recording could just be a novelty. I’m all for multi-function devices, but I don’t see iApps coming close to the array of dedicated mobile recorders out there any time soon; it appears more hassle than convenience, which would be the whole point. FourTrack is definitely the most serious app I’ve seen yet, but I still think recording may be best left to recorders, at least for now.

VideoHelper, a sound production house, has a new library of sounds they call “narrative sound design,” a combination of “experimental” sound designs. You may have already heard some of the sounds from the two-disc collection, “Modules”, as the sounds have popped up in trailers for the likes of Spiderman 3, House of Wax, and Transformers. Since we love strange sound design techniques, though, I was just as interested in the techniques used to record the library, so I asked the boys of VideoHelper to share some of their favorite recording techniques. Sure enough, they’ve got some great examples — ones that might inspire you to go grab your mobile recorder and see what damage you can do.

Chris from VideoHelper searched his memory and mentioned these techniques, some of which even have subliminal political messages (hey, sound is powerful stuff). Some techniques you’ll no doubt know well (BANG THING! BANG THING RECORD WITH MIC! being one of my personal favorites to use), while others may be new. Chris writes that his favorite tips are:

1. Hitting and smashing everything. Mailboxes, dumpsters, whatever.
2. Homemade contact mics. $2 worth of parts from Radio Shack and some duct tape. They are piezo mics that can be wired to a 1/4” output and taped to an object.
3. Dry ice. We’ve bought dry ice and recorded the contact between it and metal cymbals and whatever else is laying around. Makes a squealing sound not unlike fresh sausage hitting a hot skillet.
4. Recording silence in acoustic spaces. I do this a lot…I’ll record in a big acoustic space (like a subway corridor) and use the files for ambient recordings/sound design. It’s cool b/c it’s not really silence, just nothing in the foreground…also I record at 96K so I get some really subtle sub-harmonic material.
5. Leave beats on my answering machine and re-record for a breakdown.
6. If I’m recording a trip-hop track around 100 bpm, I may record 3 half-steps slower, so I can re-pitch up to original tempo.
7. For my POLITIK score (SH02) I got to plunder our vaults of news music for sampling. The score is a political trip-hop score using some orchestral sounds, concrete elements, fair use bites etc. I used Bush’s 2000 ring modulated acceptance speech as an impulse/input (ala Paul Panhuysen) to a prefaded verb for the ambient element of the piece BIRTH OF A NOTION. I inter-cut Hilter speeches with the cheering from the 2004 RNC. Grabbed audio from protesters in Miami (anti FTAA) and cut up into rhythmic bits…did turntable cuts on police siren “records”. The last piece depicting 9/11 has design made of box-box recordings (CVR) which was difficult to listen to. ENERGY CRISIS has all sound to do with gasoline and auto maintenance. The piece AFGHANI HEROIN has concrete elements from the the floor of the NYSE, as well as Hamid Karzai’s acceptance speech.
8. Maybe my favorite: I have 1/4” blank audio tape that I buried in a graveyard in Sleepy Hollow over Halloween of 2003. The tape was washed and re-spooled and now I use it to lay off tracks to…also I recorded it back (blank) to a file so you can hear all the dents and pits and whatever other hallucinations you can find on it.
9. Oh and one more thing talking of acoustic spaces…Flavio and I got the opportunity to record in an empty water tower in my hometown of Hampton Bays (my father-in-law works for the water authority)…the tower was being filled that week but we got to crawl around in it while empty…

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