Elliot Kim
Dolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories that was introduced to the public in 1982. It is capable of decoding Dolby Stereo four-channel soundtracks into three output channels (left, right, and surround). In 2000, Dolby introduced Dolby Pro Logic II (DPL II), an improved implementation of Dolby Pro Logic that processes any high-quality stereo signal source into five separate full-frequency channels. Logic Pro, on the other hand, is a software program by Apple that comes with a huge sound library of preset sounds, samples, and royalty-free Apple loops. It also features virtual instruments, effects, and a massive collection of plug-ins and sounds.
Explore related products
![Novation Launchpad Mini [MK3] — Portable MIDI 64-Pad, USB Grid Controller for Ableton Live and Logic Pro Performances](https://m.media-amazon.com/images/I/71h0Oifx-rL._AC_UY218_.jpg)
What You'll Learn
- Dolby Pro Logic decoders unfold soundtracks into original 4.0 surround sound
- Dolby Pro Logic II introduced a Music mode with user controls for sound stage width
- Logic Pro offers a Sound Library with virtual instruments and effects
- Sampler and Quick Sampler are Logic Pro tools for creating and playing sampled instruments
- Logic Pro's Flex Time and Flex Pitch features allow editing of pitch and time
Dolby Pro Logic decoders unfold soundtracks into original 4.0 surround sound
Dolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories. It was introduced to the public in 1982 during the time home video recording formats (such as Betamax and VHS) were introducing Stereo and HiFi capability. The name Dolby Surround described the consumer passive matrix decoding technology; the professional, active-matrix cinema technology bore the name Dolby Stereo.
Dolby Pro Logic is designed to decode soundtracks encoded with Dolby Surround. The terms Dolby Stereo and LtRt (Left Total, Right Total) are also used to describe soundtracks that are encoded using this technique. Dolby Stereo—also known as Dolby MP (Motion Picture) or Dolby SVA (stereo variable-area)—was developed by Dolby in 1976 for analog cinema sound systems. The format was adapted for home use in 1982 as Dolby Surround when HiFi-capable consumer VCRs were introduced.
Dolby Pro Logic decoders unfold" the soundtrack back into its original 4.0 surround—left and right, center, and a single limited frequency-range (7 kHz low-pass filtered) mono rear channel. Systems lacking the decoder play back the audio as standard stereo. Dolby Surround and Dolby Pro Logic decoders are similar in principle, as both use matrix technology to extract extra channels from Dolby Stereo stereo-encoded audio.
In 2000, Dolby introduced Dolby Pro Logic II (DPL II), an improved implementation of Dolby Pro Logic created by Jim Fosgate. DPL II processes any high-quality stereo signal source into five separate full-frequency channels (right front, center, left front, right rear, and left rear), while also decoding five channels from stereo signals encoded in traditional four-channel Dolby Surround. DPL II implements greatly enhanced steering compared to DPL, and as a result, offers an exceptionally stable sound field that simulates five-channel surround sound.
Audio Shops: Sound Deadener Installation Pros
You may want to see also
Explore related products
Dolby Pro Logic II introduced a Music mode with user controls for sound stage width
Dolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories. It was designed to decode soundtracks encoded with Dolby Surround. Dolby Surround was introduced in 1982 as an analog format for home video recording. In 1987, the decoding technology was updated and renamed Dolby Pro Logic.
In 2000, Dolby introduced Dolby Pro Logic II (DPL II), an improved implementation of Dolby Pro Logic created by Jim Fosgate. DPL II processes any high-quality stereo signal source into five separate full-frequency channels (right front, center, left front, right rear, and left rear). In addition to five full-range playback channels, Pro Logic II introduced a Music mode with optimized channel delays and user controls for sound stage width.
The goal for music playback is to have the sounds from all the speakers arrive at the listener at the same time, known as coincident arrival. If the surround or center speakers are closer to the listener than the main left/right front speakers, a compensating delay is applied in the decoder. This helps prevent any smearing or combing of the sounds as they combine from the various speakers. The Music mode can be user-adjustable, with the decoder manufacturer offering optional controls such as Dimension control, Centre Width control, and Panorama mode.
Pro Logic II systems also have a mode designed specifically for video games, used as an alternative to digital surround formats in games for PlayStation 2, GameCube, and Wii. Game mode is similar to Movie mode, except it redirects more bass to the LFE channel. The Dolby Pro Logic IIx system, available since 2003, can up-convert two-channel stereo, Dolby Surround, or Dolby Digital 5.1 source material to 6.1 or 7.1 channel surround sound.
How Sound Waves Create Audible Noise
You may want to see also
Explore related products
![Semi-Pro (Let's Get Sweaty Edition) (2008) [Blu-ray]](https://m.media-amazon.com/images/I/61SKqkF8TcL._AC_UY218_.jpg)
Logic Pro offers a Sound Library with virtual instruments and effects
Logic Pro offers a Sound Library with a vast collection of virtual instruments and effects. It comes with a wide range of preset sounds, samples, patches, and royalty-free Apple Loops. The library includes dynamic-sampled acoustic patches, such as pop and classical pianos, fretted instruments, world instruments, and sounds from every section of the orchestra.
One of the standout features of Logic Pro's Sound Library is Alchemy, a powerful sample-manipulation synthesizer with an extensive library of over 3000 sounds. It offers multiple sound-generating engines, including additive, spectral, formant, granular, and virtual analog. Alchemy allows users to explore and experiment with various sounds, making it a versatile tool for music production.
Another notable instrument in Logic Pro's arsenal is the Sampler. Sampler simplifies the process of creating and playing multilayered, deeply sampled instruments. It offers automated instrument creation tools, allowing users to drag and drop audio from various sources, instantly turning them into playable instruments. Sampler's drag-and-drop zones streamline the editing process by providing instant trimming, tuning, looping, and velocity layer creation.
Logic Pro also includes a collection of six history-defining bass guitar instruments, allowing users to add depth and colour to their tracks. The Studio Bass feature takes advantage of deep sampling capabilities, and users can customise the sound with tone controls, including scrapes and string noise. For piano enthusiasts, Logic Pro offers three meticulously recorded acoustic pianos, with adjustable mic positions for controlling mechanical noises.
The Sound Library in Logic Pro is designed to fuel creativity and provide a diverse range of sounds and instruments for users to explore. With its extensive collection of virtual instruments, effects, and presets, Logic Pro empowers musicians, producers, and hobbyists to create captivating musical compositions.
Birdsong: Identifying Birds by Their Tunes
You may want to see also
Explore related products
Sampler and Quick Sampler are Logic Pro tools for creating and playing sampled instruments
Logic Pro offers a vast array of sounds, samples, and instruments, and its Sampler and Quick Sampler tools enable users to create and play sampled instruments. Sampler is a powerful tool for creating multilayered, deeply sampled instruments. It features automated instrument creation tools that allow users to drag and drop audio from anywhere, including Voice Memos, and instantly create a playable instrument. The drag-and-drop zones in Sampler simplify the editing process by automatically trimming, tuning, looping, and creating velocity layers. Additionally, Sampler provides advanced synthesis and filtering capabilities, allowing users to shape their sounds in a multitude of ways.
Quick Sampler, on the other hand, is designed for working with a single sample. It offers a fast and intuitive way to import audio by dragging and dropping from various sources, such as the Finder, Voice Memos, or directly recording into Quick Sampler using a microphone, musical instrument, or channel strips within Logic Pro. With Quick Sampler, users can quickly transform an individual sample into a fully playable instrument. It also allows for the creation of sliced" instruments, ideal for drum loops or vocal phrases, and can serve as a simple one-shot player for single drum hits.
Both Sampler and Quick Sampler are versatile tools that cater to different sampling needs. Sampler provides in-depth control and advanced features for crafting intricate instruments, while Quick Sampler excels in simplicity and speed, making it perfect for quick creative ideas and beat-making. Logic Pro's extensive Sound Library, which includes a large collection of preset sounds, samples, and Apple Loops, complements these tools. The library also features pre-designed sampler instruments like acoustic pianos, basses, strings, and horns, which can be played and recorded using Sampler.
The Sampler in Logic Pro offers a range of functionalities for creating unique sampler instruments. Users can drag samples to the Navigation Bar, which intelligently analyzes and maps the samples to keys. Alternatively, users can manually create sampler instruments by creating zones and assigning files to them. The Sampler also provides access to low-frequency oscillators (LFOs) through the Modulators option in the toolbar, allowing for the addition of animation to the instruments. The Synth settings in Sampler enable global and filter adjustments for the entire loaded sampler instrument.
Explore the H9's Flanger Sound
You may want to see also
Explore related products
Logic Pro's Flex Time and Flex Pitch features allow editing of pitch and time
Logic Pro is a digital audio workstation (DAW) software application for macOS, developed by Apple Inc. It is part of Apple's Pro Apps family of software applications and is targeted at professional musicians, songwriters, and sound engineers who are looking to write, record, edit, mix, and produce music. Logic Pro comes with a huge Sound Library of preset sounds, samples, and royalty-free Apple Loops. It also features an incredibly deep Sound Library, virtual instruments, amazing effects, and a massive collection of plug-ins and sounds.
Logic Pro's Flex Pitch and Flex Time features allow users to edit the pitch and time of audio material. With Flex Pitch, users can edit the pitch, time position, and length of notes, as well as cut, merge, and adjust other parameters of individual notes. Users can also edit the fine pitch and formant shift of notes by dragging the corresponding hotspots vertically. The Vibrato tool allows for further editing of vibrato without the need to drag hotspots.
Flex Time, on the other hand, allows users to change the time between events in an audio region. Users can choose from various Flex Time algorithms to manipulate the timing of their audio. Flex Pitch and Flex Time can be used simultaneously, allowing for greater flexibility in editing. When using both features together, users can adjust the pitch blips horizontally to stretch them as needed.
To access Flex Pitch and Flex Time in Logic Pro, users can go to the Tracks area menu bar and select "Edit > Show Flex Pitch/Time" or use the keyboard shortcut Command-F. Alternatively, users can open the Flex Mode pop-up menu and choose "Flex Pitch" or one of the available Flex Time algorithms. Flex Pitch and Flex Time offer powerful tools for manipulating audio, making Logic Pro a versatile and feature-rich DAW for music production and audio editing.
Fixing Muffled TV Sound: Troubleshooting Guide
You may want to see also
Frequently asked questions
Dolby Pro Logic is a surround sound processing technology developed by Dolby Laboratories. It is designed to decode soundtracks encoded with Dolby Surround.
Dolby Pro Logic offers a more immersive audio experience by providing up to four channels of sound (left, right, centre, and surround). It also includes optimised channel delays and user controls to adjust the sound stage width.
Dolby Surround is the earliest consumer version of Dolby's surround sound technology, introduced in 1982. Dolby Pro Logic is an improved version of Dolby Surround, introduced in 1987. It offers better sound quality and the ability to decode four-channel soundtracks.
Logic Pro is a music production software developed by Apple for Mac and Windows. It offers a wide range of features, including a large sound library, virtual instruments, effects, and plug-ins.
Yes, Logic Pro comes with a vast sound library that includes preset sounds, samples, instruments, patches, Apple Loops, and drum kits. Users can also create and customise their own sounds using the software's sampling and synthesis tools.
