Types of Music Software
Music software falls into a few categories. But the lines between the categories are blurring, even as we work. In the last ten or so years, three main types of computer music software have been developed.
Audio Multitrack Software
Audio multitrack software attempts to re-create a multitrack recording and playback studio inside your computer. When recording software was first introduced, massive PCI cards and other hardware were needed to help the computer cope with all of the audio data. A good example is the professional Pro Tools audio software that still, to this day, relies on PCI cards for computer power. Nowadays, software that deals exclusively with audio and not MIDI is very difficult to find, because most, if not all, studio software incorporates MIDI in some regard. But if you look hard enough, you might find some free or very cheap software on the Internet that deals with just audio.
MIDI Sequencing Applications
Before audio was even a dream on a computer, there was MIDI, which consists of small text commands to control the playing of synthesizers. Computers were able to work with MIDI data almost twenty years ago. A MIDI sequencer lets you record and manipulate many tracks of MIDI information, allowing the computer to play back long, complicated parts that might be unplayable by a single human. You can create piano parts that are faster than anyone can play. A single person can program an entire orchestra to play back their music. Editing and manipulation was possible on even the minutest of levels. MIDI was the reason that the computer made its first appearance in the recording studio. Even today, you can still get MIDI-only sequencing programs. Some of the more famous programs that were the pillars of the MIDI sequencing world, such as Logic and Cubase, have grown up to include sophisticated audio features as well. So just like audio-only applications, it's hard to find just MIDI; most are integrated.
Integrated MIDI and Audio
Today, this is where most of music software is going — the integration of MIDI with audio. As all of the programs grew up, the need for an all-in-one solution became necessary. The software suites that dealt strictly with audio, such as Pro Tools, eventually adopted MIDI. Conversely, the MIDI-only camp grew audio wings. All the programs covered in this chapter allow you to record and edit MIDI and audio together in the same program. With audio programs, not only can you play and record, but you can process effects and perform exacting editing, which is what makes these programs special. On the audio side, nonlinear editing is the distinguishing factor that makes the computer more than just an emulation of a multitrack recorder. What's nonlinear editing? Read on!
What Nonlinear Editing Means to You
Let's start with linear editing. Think of an audiotape. Suppose you were recording a mix for your car's tape player. Later on you decide that the track you placed first on the tape you'd rather have at the end of the tape. You would have to re-record the entire tape to rearrange the order of tracks. There is no way to just magically “move” that song. You can't do this because audio tape is linear — it's read in a line and whatever appears first will be played first and so on.
Computer audio systems don't rely on tape storage; instead they use hard drives to store data. Although we hear this data as music, the computer can't distinguish between math and music, and that works in our favor. Audio data is stored on the hard disk in a nonlinear manner, which allows you to change the order of tracks and move whole sections of your song with ease. This is one of the main reasons computer audio took off. Editing is far superior on a computer system. It's easy to imagine that audio on a computer is processed much like text in a word processor — you're free to cut, copy, and paste as you wish. Audio data is treated the same way, and that's nothing short of revolutionary!
Historically the first audio recording on a computer was not multitrack audio. It was simply stereo files. These files were loaded into an audio-editing application that allowed nonlinear editing in high resolution. After the edits were completed, they were sent back to the tape they came from. This was the beginning. Even as multitrack grew up, audio-editing applications were still popular ways to edit in high detail. Nowadays, audio-editing programs like Wavelab are used for mastering and remastering because they don't deal with multitrack or mixing data, only the final stereo file. For many, audio-editing applications like these are the last step before burning or CD duplication. These programs are also handy if you work on a cassette multitrack and wish to mix down to the computer by recording the final stereo output into the computer. Some tape lovers even do editing this way!
Proprietary Audio Systems
By proprietary audio systems, we are referring to audio software and hardware packaged together under a brand name and sold for use on your computer. Pro Tools is an example of such a system and is, in fact, one of the only proprietary systems on the market today that can be used in the home studio.
Unlike Pro Tools, almost all audio software and hardware systems are modular, meaning you can buy software X and audio interface Y from different companies, and they will work together. For example, you don't have to use Digital Performer with a MOTU interface just because they are made by the same company. So too, you can get standard drivers that allow you to use almost any piece of software with almost any piece of hardware, regardless of the manufacturer.
Pro Tools is a proprietary system that doesn't work with other hardware or software. However, Pro Tools Free is a free downloadable version of Pro Tools that will work with any audio hardware, albeit limited to two inputs at once. Remember,
Pro Tools is not software, nor is it hardware. It's a proprietary system of hardware and software that is sold together for use on your home computer. Because they sell you everything at the same time, it's a self-contained system. This means you can't run Pro Tools software with any other hardware besides the hardware that comes with the package; but you
There are other proprietary systems available, but not for the home studio market. The only proprietary systems available in the home studio market are the LE line of Pro Tools, such as Mbox, and Digi 002.