Every so often something hits the App Store that is interesting but difficult to explain. At the same time, it is enjoyable to use, and you tip your hat to the people who thought it up, even if it has no real practical use.

Mujik [App Store] is a free (for now) app that allows you to create musical sounds by opening books on a shelf and chasing dust mites across the page.

It's a charming app, with interesting graphics, and I was able to create a passable tune. If your taste runs to Mike Oldfield or Brian Eno (who has his own app for creating music on the iPhone) you know the kinds of sounds I am talking about.

You do have some control over the instruments, the pitch, and you can balance the ensemble, if that is the word, by turning off any of the 3 channels.

The lads who made this app are from an Edinburgh, Scotland software company called Lucky Frame, and are obviously pretty creative in their offbeat way. The founder of the company says he wanted to create software that is "not intimidating and easy to use".

This app isn't to be confused with a composition tool, or a sequencer where you get a lot of control. It's something to play with and enjoy.

It would be nice if you could save your tunes, but instead they become fleeting memories. A 'save mode' is promised by the developers. Mujik runs on the iPhone and the iPod touch.

Thanks to Donnacha for the tip.

Here are some screenshots but they are just likely to confuse rather than illuminate. You just have to try it.

The enthusiastic developers of Parranda were at WWDC to show off their app, a simple one-man-band party in your hand. Parranda (iTunes link) has a lot of polish, too, with instruments that aren't just one big button, like some "soundboard" music apps. The cowbell, for example, allows you to tap on different parts of the instrument, which any decent cowbell player will tell you, creates very different sounds. Mostly. You can zoom in or out on the instruments, something you will have to see in the video, but it is a nice effect and adds to the experience.

Parranda has pre-set rhythms to choose from, plus vocalizations to add a little spice to the performance. Already a hit in Puerto Rico, I think Parranda has a good shot everywhere, as it's a fun little app. Perhaps a bit more than you're used to paying at $2.99, but I think it's a fair price for the quality of the app.

Update: The plot thickens: the phone also emits the noise just after recording video, and for a much longer period of time. An Apple discussion thread about the noise is here.

Are dogs unusually attentive to, or angry at, your new iPhone 3G S? The folks over at Boy Genius Report have an inkling as to what might be causing it: when a iPhone 3G S user sends a text message or locks the screen, the phone's speaker (the grille on the bottom left-hand side of the device) emits a high pitched sound for approximately three seconds. Many users corroborate the presence of the sound in the comments of the article.

This is an unusual response to these interactions, and further investigation has not yielded any other function that triggers the sound. To activate the sound with a lock, the phone must first be fully unlocked (waking the phone and putting it back to sleep will not trigger the sound). The phone does not emit the tone when the sound is switched off; likewise, when the volume is low, the sound is barely audible, if at all. To my 22-year old ears the sound is soft even with the volume all the way up, but noticeable once I became aware of it (and now a bit annoying).

Boy Genius Report estimates the sound to be in the 15 kHz range (here's a clip of a similar sound for reference), well within the iPhone's listed range of 20 Hz to 20 kHz. Your personal experience with the sound may vary, as higher pitched sounds become harder to hear as you age. Some users report hearing it loud and clear, while others must hold the speaker right up to their ear to hear it; some don't hear it at all. For this reason, it's hard to say whether the sound is endemic to the phone or an anomaly only occurring in certain devices.

A call to Apple's tech support revealed they had no previous knowledge of this issue. They directed me to do a hard reset (holding down the Home button + the Sleep button for ten seconds) but the sound remained. The representative speculated it was a hardware issue, and recommended I take the phone to my nearest Apple Store to get a replacement. Until then, if a rabid dog attacks me, all I have to do to confuse it is unlock and relock my iPhone (or, send a text message).

Can any of you hear this sound too?

I don't think I've ever fallen in love with an app as quickly as Bebot. Not only is it a pretty darn powerful synthesizer with an interesting touchscreen interface, but that robot. That robot! He makes you want to play something, anything, with those cute little closed robot eyes and that dashing tux and that knowing smile. If you just want to make funny robot noises, that's easy enough, but for the musically inclined, there's a really surprising amount of features under the hood, including analog filters, a delay/looping effect, chorus and overdrive effects, and even an autotune system. Oh, and because of the multitouch screen, you can play up to four waveforms at a time. In the hands of someone who knows what they're doing, this thing can be really impressive.

It's available from a company called Normalware (any app with that robot in it has basically sold me from now on -- there's even a t-shirt of the guy) on the App Store right now for $1.99.

Instead of rounding up 16 apps in one review, I'll just tackle five. Links from the title of the app take you directly into iTunes and the App Store.

WideNoise measures the noise in an area (using the mic on an iPhone, of course) and registers that online with your location. WideTag will show you regions of loud and quiet on a global, interactive map. My area shows "feather" because I took a recording in an empty house. The app looks like a prop from Fallout, with distressed metal and an analog meter, and I found the readings to be comparable to Decibel, which I've reviewed before. This might be good for finding quiet places in urban areas, provided people take the time to use it. I'm not sure $1.99 will have this flying off the virtual shelves, either.

Wooden Labyrinth 3D is exactly that, the classic game of a metal marble in a wooden, moving maze. We've seen several iterations of these on the store, but I think this version nails it. The physics are superb, the 3D is flawless, and the soundtrack is relaxing and pleasant. Plus, unlike real-world versions, you don't have to keep dozens of wooden mazes around -- there are several themes in the game which lead to several puzzles in each theme. In short, you're looking at a wide range of gameplay in this one app. My only complaint is one of organization: I would have preferred groupings based on difficulty, or some way to know how hard a level is before launching it. Is it worth $2.99? Considering the polish and replayability, I'd say yes. True, there are freebies out there, but none match the elegance of this app (and some which cost more aren't as good).

Penalized is billed as an "adult" party game, but it's a bit less provocative than you might think. There's no explicit adult content, this is merely hinted at. The game is a series of challenges, like "Impersonate Ray Charles" and if the player can't perform the challenge, they must be penalized somehow. The adult part is in the penalty, so removing a piece of clothing is an option. So is chopping a cord of wood, you know, adult stuff. Penalized does include a lot of challenge cards in 6 categories, but the $1.99 may seem a bit much. Especially if you carry around a deck of challenge cards in your pocket already. This is also something you could cook up with TileStack, I think.

Keep reading for Pure Sleep and Army Knife, two apps I use on a daily basis.

The lovely and talented Peter Kirn over at Create Digital Music has posted a round up of music apps for the iPod / iTouch platform. The list includes tools for using your iPhone as a MIDI/OSC controller, making random weird digital art, visualizing your music and, er, listening to Snow Patrol's next album, amongst other apps. Peter's a thoughtful critic and his evaluations are pretty detailed and thorough.

If you're an aspiring iPhone musician / DJ/ sound designer, this is definitely a good place to start finding useful apps.

Do you need to make basic sound level measurements? For example, do you want to prove that your next door neighbor really is playing music loud enough to make your ears bleed?

Faber Acoustical is coming to your rescue with their US$19.99 SoundMeter for iPhone. They discovered that both the built-in and headset microphones of the iPhone have a flat enough frequency response to make them useful for measuring sound levels.

To quote the technical part of their press release, "SoundMeter measures average sound levels with fast, slow, and impulse time weightings. Peak, maximum, and equivalent sound levels are also available. All sound levels may be measured with Flat, A, or C frequency weighting." Got that?

Faber notes that SoundMeter doesn't meet ANSI or IEC standards for precision sound level meters, but it works very well as an inexpensive level meter for hobbyists. They recommend not using the built-in mic on first-generation iPhones (the headset may be used instead), and SoundMeter should be calibrated prior to use.

Faber Acoustical also produces two other really impressive iPhone apps, SignalScope and SignalSuite. SoundMeter for iPhone is available in the App Store now (click opens iTunes).

[via prMac]

AudioFinder fits a niche that I admittedly don't have a lot of experience in, but I just gave version 4.7 a test run and I'm impressed. OK, so it got me with its not-bad looks to start with, which gave it a leg up on most of the other prosumer-level audio asset managers I've played with. But it quickly lived up to its moniker with Finder-like ease-of-use and powerful features made simple.

I loved that it integrated completely with Finder, and that it provided an interface for viewing audio that was as powerful as anything I've seen for graphics previews. I haven't seen any app at any price do this as simply. A keyboard in the main window lets you pitch sounds in realtime, as well as run them through AudioUnits. It essentially has a full editor built into the "Finder" panel that is powerful without being domineering.

There is a free level (sound browsing only) available if you request an activation code. The list price for full activation is $69.95 and the demo of 4.7 is available for download. At the time of this writing the website still says the download is version 4.6.3, but it's not. I checked, just for you.

I guess the $2 billion iPod accessory market is inspiring everyone to snag a piece of the pie, no matter how... unique their accessory concept might be. Behold: the iSoundCap, a 'breakthrough' way to carry your iPod nano or shuffle. As you can see from the diagram, this stylish cap comes with a pouch (that appears to be permanently mounted on the right side) that offers access to your nano or shuffle controls, along with two headphone wire spools (one for a spare) to help tackle all the slack.

The creative cap sells for $29.95, and it comes in a variety of styles depending on model (including pink just for the ladies). If you pre-order before its ship date of 8/1506, iSoundCap is offering a 10% off coupon at their store.

[via Engadget]

I'm finally done being in pain from laughter to post this hilarious revisit of the Star Wars Kid using that MacSaber app we found over the weekend. Great work, YouTube user mathowie.

[via Waxy.org]

The iTMS has introduced an intriguing new service called "New Rock Revealed", where one band's music will be dissected each week to find who their roots and inspirations were, as well as similar sounds you can find today.

This first week looks at Pearl Jam's new album (which rocks, by the way), and lists its tracks in the middle of the chart. On the left side is a list of "Roots & Influences", where songs from bands that inspired Pearl Jam are listed, track by track, matching up to the Pearl Jam songs where their influences can be heard. On the right side is the "Similar Sounds" list of bands who clearly were inspired by Pearl Jam. Each of the two lists (Roots & Influences and Similar Sounds) are available as mixes ready for purchase, priced at just over $12 apiece. I would imagine that price will fluctuate, depending on the length of the album New Rock Revealed dissects each week.

This is a really cool idea, though I wish the iTMS could produce some more information along the lines of truly exploring a band's roots. I'd love to be able to read a little more into what exactly inspired Pearl Jam; where they got their sound, how they started out as a band living out of their broken-down tour bus and eating stale bread three times a day until they got their big break. With that said, I'm excited to see the iTMS whipping out clever new services like this to get people more interested in music, where it came from and where it's going.

Freeverse has announced a free set of automation plug-ins for Sound Studio 3, their fantastic, easy-to-use audio editing application which we've blogged before. Dubbed "Monbots" (short for Monkey Bots), these are but the first three in what Freeverse promises to be a series of handy automation plug-ins and tools.

The first monbot, Clean & Convert, is an audio scrubber for tidying up any misbehaving or noisy audio. The second, called Mastering Console, offers a set of tools and effects for (you guessed it) mastering audio, while Bookend Audio allows you to easily add intro and outro audio to a file or group of files. A fourth monbot, capable of stitching multiple pieces of audio together into one file, is aptly called Stitch and is listed as coming soon.

It looks like the monbots are free, so all you need is a copy of Sound Studio 3 which sells for a mere $79.95.