Requirements

MultitrackStudio has been designed to run very efficiently, so computer requirements are fairly modest. Some performance issues are discussed in the following sections. With newer computers the sound device usually is the only thing to worry about.

Operating System

Windows: The 32-bit version of MultitrackStudio can be used on any computer that runs Windows 7/Vista/XP/2000 SP4, including the 64-bit versions of Windows 7/Vista/XP. The 64-bit version works with the 64-bit versions of Windows 7/Vista.
Mac: MultitrackStudio works with OS X 10.7 (Lion)/10.6 (Snow Leopard).

Sound Device

At minimum, a 16 bit/44.1kHz/stereo sound device capable of full-duplex operation (ie., simultaneous playback and recording) is needed for audio recording/playback. Virtually any modern device will be capable of this.
On Windows XP/2000 Soft Monitoring requires an ASIO driver, and it's highly recommended for recording software MIDI instruments as well (latency will be much too high with the WinSound driverset).

CPU Power

Real time audio processing requires a fast processor. A 500 MHz CPU will let you run a basic mix (a Reverb and say 10 other effects). The Convolutor, the Sampler and the MultitrackStudio Instruments require a bit more CPU power. Although they can be used on a 500 MHz CPU, 750 MHz is no luxury if you plan on using them. The Pro Plus edition's Guitar Amp requires a lot of CPU power too, a 1 MHz CPU is recommended.
If you use 88.2 or 96 kHz samplerates (Pro Plus edition) a 1 GHz or higher CPU is recommended. 2 GHz is recommended for 192 kHz operation.
MultitrackStudio takes advantage of multiple core CPUs (up to eight CPUs can be used).

Memory Usage

MultitrackStudio's memory requirements are very modest, unless you're using very large sampler patches. With Windows XP/2000 even 128 MB will do for modest projects.

Note that some sample based VSTi plugins can use lots of memory, if you use a lot of those then having 2 or 3 GB of memory is a good idea.

Disk Speed

If your songs contain about ten audio tracks a fast hard disk (7200 RPM as opposed to the once standard 5400 RPM) is recommended.

Audio Gear

You may need some special wires to connect microphones etc. to your sound device, especially if you have a cheaper sound device which typically use 3.5mm jack plugs, whereas microphones use XLR connectors or 6.3mm jack plugs.

Using an external high-quality mic preamp can significantly improve the sound quality of your recordings. They usually provide Phantom Power as well, so you can use condenser mics.

An analog compressor can reduce the risk of overloading the sound device's input. It also allows you to get more out of a 16 bit sound device's resolution.

Not all stereo sound devices allow you to set different recording levels for left and right channels. This can be quite a problem if you want to record two tracks at the same time (for instance a vocal track and an electric guitar track). You can solve this problem by using two mic preamps (that have a level control). Using a small analog mixer may be a cheaper alternative.