The ideal USB audio interface is going to be determined by your requirements and probable uses, so ill highlight models and brands with an assortment of I/O ( Input/ Output). I will first highlight the more standard, lower spec models and then go up to the more advanced units. Its alphabetical order by the size of the range.
The smallest size is the USB microphone preamp, which can be used in combination with the USB audio interface. The number of inputs will depend on the number of microphones you plan to connect. Some have up to eight inputs, whereas other models can support up to sixteen. Each input can support up to three separate channels. These are switched using a pair of in presampler switches. When using multiple inputs you need to make sure that you use separate audio interfaces for each input, else you may get some undesired feedback.
Microphone Stereo USB interfaces are just one type of popularly available micro USB audio interfaces. They use the high bandwidth + mixer functions to let you mix up more than one source at the same time. These are perfect for live performance where multiple microphones are needed to handle different backing tracks. The mixer function lets you control the overall volume of the recording. The majority of these come with standard 4-conductor connectors and are available in a variety of sizes to match the needs of your studio setup.
Another type of popularly available USB audio interface is the Behringer Ultimate USB Digital Studio Monitoring. This is the largest of all the USB monitor plugs as it has nine inputs and twelve outputs. It has an ultra-soft but rugged construction making it one of the best-performing and most dependable on the market. It has an incredible display with large text backlighting for ultimate viewing convenience. It also has a very handy remote control that makes controlling this monitor easy.
If you are into professional audio work or want to impress your clients, this is a USB audio interface is a great choice. With eight channels of input/output, you can connect up to four recording devices and two monitor monitors. You can send digital audio files from your computer to an ipod, iPhone, or laptop for extra versatility.
Plug in headphones are one of the most popular features of most USB interfaces. However, most offer limited recording abilities when compared toitss headphones or those made for the ipod. A good idea is to take advantage of the zero-latency feature of these interfaces to record without waiting for the incoming data to buffer. Most of the iPods have this facility while most of the headphones do not. An advantage of using a selector with these zero-latency recorders is the fact that they do not pick up background noise which can ruin recordings.
An impressive feature of most of the apple iPad apps is the built in speaker. Some of the audio interfaces for the ipad offer great sound quality when used with the right ipod accessories. There are many quality products on the market that can be used with most ipod accessories including microphones, speakers, and amplifiers. You can get some really nice products for the iPad if you shop around. There are even some revolutionary products on the market that can be used with the Apple iPad.
An impressive feature of the latest interfaces is that it can support most kinds of remotely controlled devices such as turntables, mixers, recorders, studio mixers, and record players. There are also a variety of interface options for connecting to other types of computer hardware such as computers, laptops, keyboards, and other computer peripherals. Some of the better-quality interfaces have special outputs for connecting to different external devices. These outputs allow you to use different plugins and additional equipment without having to run another cable from the studio to wherever it is you want to use the soundboards.