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What is Pro Tools? I.Multi-track digital recording and editing system. Hard-disk audio recording Graphic audio editing MIDI sequencing Digital signal processing.

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Presentation on theme: "What is Pro Tools? I.Multi-track digital recording and editing system. Hard-disk audio recording Graphic audio editing MIDI sequencing Digital signal processing."— Presentation transcript:

1 What is Pro Tools? I.Multi-track digital recording and editing system. Hard-disk audio recording Graphic audio editing MIDI sequencing Digital signal processing Mix in an integrated system Post-production video editing Mix to picture

2 Audio Copy Paste Move Delete Modify Quantize audio Trim waveforms Reprocess audio Pitch correct Replace drum sounds Rearrange song sections Experiment with tempo

3 MIDI I.Record & edit MIDI data MIDI time stamping Groove quantize Restore performance Native ReWire support Tick-based & sample-based timelines Plug-in virtual instruments

4 Mixing Signal routing Effects processing Signal levels Panning Automation

5 Post-Production Import video clips “Sweeten” audio by adding effects Non-destructive editing Export finished movie file with final audio mix embedded.

6 Digital Audio Theory: Waveform Shape of the sound Path is complex, influenced by physical material, and resonance of surroundings = create unique character and tone.

7 Digital Audio Theory: Frequency Pitch of a sound Measured in Hz or CPS Increase in frequency = increase in pitch. When frequency doubles = pitch raises 1 octave

8 Digital Audio Theory: Amplitude Loudness of a sound Measured in decibels Decibel scale is defined by the dynamic range of human hearing. As amplitude increases the sound becomes louder.

9 Sampling Theorem or Nyquist Theorem In order to achieve an accurate frequency of sound, each cycle of the sound’s vibration must be sampled at least twice. Human hearing = 20Hz-20kHz, 2 x 20kHz = 40kHz Sample rates of : 44.1kHz, 48kHz, etc…

10 Bit Depth and Amplitude Resolution Each sample of sound is assigned to an amplitude value. “2 to the nth power” 16 bit word - 2^16th power = 65, bit/48kHz = 11.4 MB storage space 24 bit word - 2^24th power = 16,777, bit/48kHz = 17 MB storage space *Greater accuracy with 24bit vs. 16bit

11 Calculating the Dynamic Range Binary word x 6 = dB dynamic range 16 bit x 6 = 96 dB dynamic range 24 bit x 6 = 144 dB dynamic range

12 Digital Transfers S/PDIF =RCA jacks, consumer. AES/EBU = XLR connectors, professional, more stable, filters embedded copy protection. Virtually identical in quality

13 Pro Tools: M-Powered For use with M-Audio hardware Highly portable with low I/O needs PCI, FireWire, and USB interfaces Sample rates up to 96kHz Bit depth up to audio tracks & 256 MIDI tracks 48 audio tracks with Music Production Toolkit

14 Pro Tools: LE USB & FireWire Digidesign interfaces Mbox 2 & 003 In home and project studios Sample rates up to 96kHz Bit depth up to tracks & 256 MIDI tracks 48 tracks with Music Production Toolkit

15 Pro Tools: HD DSP hardware & TDM technology Professional studios Sample rates up to 192kHz Bit depth up to tracks & 256 MIDI tracks

16 Music Production Toolkit Hybrid TL Space Native Edition Smack! LE SoundReplacer Digidesign Intelligent Noise Reduction Multi-Track Beat Detective More audio tracks MP3 Option

17 DV Toolkit 2 TL Space Native Edition DINR LE Synchro Arts VocALign Project DigiBase Pro DigiTranslator 2.0 Extended Pro Tools Functionality More Audio Tracks MP3 Option

18 Mojo SDI Hardware video peripheral Avid Video into Pro Tools Post-production seamless interchange between LE and HD systems. Import, play back, edit Avid video files in the timeline.


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