Buy once, use with your iPad, laptop and desktop. In our view, the Presonus Audiobox iTwo is a great all-round USB audio interface for several reasons: Multi-platform: PC, Mac and iPad. Presonus iTwo USB Audio Interface.
Usb Guitar Interface Bluetooth And ItBut download the accompanying iOS or Android app, sync it via Bluetooth and it’s like opening the wardrobe to Narnia.10 - Polyphonic Audio To MIDI VST plugin by WIDISOFT for MAC OS X. In fact, there’s nothing on the amp’s fascia to hint that it does anything else other than serve as a little practice amp with knobs for volume, tone control, reverb, delay and seven prefigured guitar sound styles. Audio AND MIDI on one interface.Positive Grid is best known for its exceptional BIAS guitar amplifier and effects modelling software and that very same tone engine is hidden under the bonnet of this remarkable small-bodied practice amp which, to all intents and purposes, looks and behaves like any standard guitar amp.As brilliant little music-making tools go it's up there with the Roli Songmaker Kit beat creator and the Izotope Spire Studio 8-track recorder. Speed for monitoring live inputs (mic, guitar or keyboard) through your computer.If you’re a pro, you’ll find much to love about this amp and if you’re a complete amateur, it may just change your life. MOTU have announced two new USB bus-powered audio interfaces for Mac. It has a high quality professional shielded cable and a standard 6.5mm jack and an LED light flash indication. Simple plug and play guitar one end, USB the other, and start recording.Play along to a variety of pre-set music genres while following the scrolling tablature Fingertip access to thousands of amp sounds and effects, including amp emulations of your hero guitarists It sounds great, it’s loud, easily controlled and does what a guitar amp’s supposed to do.But then you reach for your phone or tablet, launch the Spark app (iOS and Android) and sync it to the amp and, holy mother of pearl, you’ve suddenly left planet Earth as you know it and entered a whole new kingdom of guitar wizardry.To help quell your curiosity, I’ll cut straight to the chase and tell you in bullet points what this thing can do. Its 40 watt Class D amplifier punches way above its weight while its two four-inch custom designed speakers deliver crisp clarity and rich bottom end grunt, in full stereo if necessary.So, you’ve set up the amp, plugged in your guitar and fiddled with the controls and you’re happy with it. If anything, the whole thing looks and feels over engineered, so hats off to the cabinet designers and factory fitters for doing such a sterling job.Measuring 35x18x19cm (or 13.78 x 7.08 x 7.48 inches for our American friends) and weighing in at a very manageable 5.2 kg (11.46 lbs), the Spark is a perfect size for table top and travel use. The craftsmanship of the cabinet is exemplary across the board – the taut tactile covering fits like a glove, the trim is superbly amalgamated and the control knobs feel smooth, sturdy and durable. Best app for mac to make invitationsYou can also change the tempo of each and even transpose the chords to a key that is easier for you to play.Alternatively, select Auto Chords, choose a favourite song from Spotify or Apple Music and the app will analyse the song’s chords before playing it back through the amp’s speaker with full scrolling tablature. Simply plug in your guitar, choose a sound and select a genre – pop, rock, blues, funk or any amount of pre-recorded backing tracks – and jam along, following the scrolling on-screen tablature. Ostensibly designed for beginners, the Spark Amp’s ‘Smart Jam’ section provides a raft of backing tracks in different genres to jam along with. Positive Grid Spark Amp review: Amp models and effectsThis is where the cleverness ramps up considerably. Use the amp as a digital music interface for your Mac or PCHas that got the juices flowing? Let’s break it down a little more then. Tell the app to analyse the chords of your favourite song from Spotify and Apple Music and then play along to the tablature Now, it has to be said that this particular feature isn’t anywhere near as accomplished as the similarly-styled Digitech Trio+ guitar pedal. Just tap the plus sign, play an 8-bar sequence of your own and the app will analyse it before playing it back with full bass and drums backing. I’d say it got about 60% of the song correct – and that’s a big tick in my opinion given the complexity of the song’s soundscape.Aside from playing to other people’s songs and backing tracks, you can also play along to your own chords sequences. Some popular songs have already been checked and verified by Positive Grid but there are millions that haven’t.As an experiment I chose Bon Iver’s glorious ‘Hey Ma’ and was surprised it managed to analyse any of the chords at all. It’s not 100% correct all the time, mind, because some songs have strange inversions in their chord sequences, causing the app to extract some incorrect chords. I got there in the end by using Google. The wording on Positive Grid’s website is like the instructions for splitting the atom and, for a writer who likes stuff that is Steve Job’s simple, this was a frustrating Microsoft-type moment. This is not what you want to happen when playing quietly while everyone else is in bed, but I’m sure it’s rectifiable with an update of sorts.Another small but valid complaint is the lack of clarity on how to update the amp’s firmware. In fact, the only way I was able to stop the racket was by turning off the amp. On at least three occasions while I was stabbing at the screen to change an amp model before the iPhone’s processor had time to carry out the previous procedure, the amp suddenly emitted the most horrendously loud high-pitched feed-back howl that no amount of knob twiddling seemed to rectify.
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