![]() Doubling the intensity of sound-pressure variations creates a gain of 3 dB, however, an increase of approximately 10 dB is required to produce a perceived doubling of loudness. The decibel scale is defined by the dynamic range of human hearing, with the threshold of hearing defined as 0 dB and the threshold of sensation or pain reached at approximately 120 dB. The intensity or amplitude of the sound pressure variations that reaches our ears creates our perception of the loudness of the sound. The range of human hearing is between 20 and 20,000 CPS. As the frequency of vibration increases the pitch of the sound goes up (each time the frequency doubles the pitch raises by one octave). The frequency of the sound pressure variations that reaches our ears creates our perception of the pitch of the sound, we measure this frequency in cycles per second The cycles of vibration are typically complex and jagged, influenced by factors such as the physical material that the object is composed of and the resonance induced by the object's surroundings. In addition, Pro Tools 9.0 provides an Aggregate I/O option for using the built-in audio on a Mac, meaning the software can be run with no connected interface, allowing Pro Tools to record and play back through the computer's onboard audio ports.īasics of Digital Audio The waveform is the "shape" of the vibration that produced the sound. This means that, for the first time ever, Pro Tools software can be run with third party hardware. Standard Pro Tools software replaces the former Pro Tools M-Powered and Pro Tools LE platforms and is compatible with any current Pro Tools M-Powered or Pro Tools LE audio interface, as well as any Core Audio or ASIO audio interface with supported drivers. Launching Pro Tools 9.0 with any other hardware will run standard Pro Tools software. On systems with Pro Tools|HD or Pro Tools|HD Native hardware, launching Pro Tools 9.0 will run Pro Tools HD software. Pro Tools 9.0 provides a single, unified installer for all versions of Pro Tools. VENUE systems: VENUE D-Show (56 faders), VENUE Profile (24 bankable input faders) and VENUE SC48 (16 bankable input faders). ICON integrated console environment: ICON DControl work surface (32 faders expandable to 80 faders), ICON D-Command ES work surface (24 faders expandable to 40 faders). The Digi 002 and Digi 002 Rack audio interface follow, extending the capabilities of Pro Tools LE. 2002: Pro Tools|HD systems are the successors to Pro Tools TDM and Pro Tools|24. Digidesign receives a Technical GRAMMY Award. 1999: Pro Tools LE is introduced, providing host-based audio processing. 1998: The first Pro Tools TDM system for Windows is created. ![]() Interface and new cards called DSP Farms). 1997: Pro Tools|24 is released (offering 24-bit audio capabilities, 888|24 I/O audio 1995: Digidesign merges with its biggest customer, Avid Technology. 1994: Digidesign introduces Pro Tools TDM (Time Division Multiplexing). 1992: Session 8 is released as the first Windows-based version of Pro Tools. Eventually, using additional cards and interfaces, these Pro Tools systems expanded to support up to 16 tracks of simultaneous recording and playback. 1991: The first-generation Pro Tools system is released, supporting 4 tracks of audio. 1990: The first AudioMedia card is created. 1989: Digidesign release Sound Tools (which contains Sound Designer II software, a Sound Accelerator card and a hardware box called the AD-In that provide two analog-to-digital converters). 1988: Digidesign release Sound Accelerator (a CD-quality two-channel output card for the Mac II). 1987: Digidesign begin prototyping a mono sample playback card for digital audio. 1984: Digidrums is founded (Sound Designer: first product that combine waveform editing with a front panel emulation/editor) 1985: The company change its name to Digidesign. The Story of Pro Tools 1980s: Peter Gotcher and Evan Brooks devise a process for recording drum and percussion sounds onto computer EPROM chips. It uses the power of the personal computer to combine hard-disk audio recording, graphical audio editing, MIDI sequencing, digital signal processing (DSP) and mixing into an integrated system. Pro Tools is a multi-track software-based digital recording and editing system. PRO TOOLS 101 Chapter 1 - Getting to Know Pro Tools Pro Tools is the most widely used application for music and post-production (sound for film, video and multimedia) in the world today, integrating capabilities in audio and MIDI recording, composition, editing and mixing, as well as support for desktop video. ![]()
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