A simple and brief explanation into some of the terms used by AudioDefine Records
Select an item from the list to view the glossary entries:
Direct Stream Digital (DSD)
Direct Stream Digital (DSD) is a high-resolution digital audio format renowned for its fidelity and purity in sound reproduction. Unlike traditional PCM (Pulse Code Modulation) formats, DSD utilises an extremely high sampling rate. This approach enables DSD to capture audio signals with remarkable accuracy and detail, offering an immersive listening experience characterized by its naturalness and realism.
Ambisonics
Ambisonics, a surround sound format, utilizes B-format to facilitate dynamic 3-D sound across various speaker setups. B-format serves as a speaker-agnostic portrayal of sound fields. Leveraging this aspect of ambisonics, sound engineers encode directional cues that are decoded by each listener’s unique speaker arrangement, rather than rigidly embedding directional instructions for a specific speaker layout.
Binaural Recording
Binaural audio involves recording or playback of two channels arranged to simulate a 3-D effect for the listener. Our “Binaural Recordings” are captured using a specialized microphone. Listening with stereo headphones is essential to fully experience the intended result of binaural recordings.
HRTF
HRTF, an abbreviation for Head-Related Transfer Function, describes how your head and ears influence sound perception. Changes in sound direction lead to variations in phase and frequency, which our brains interpret to determine the sound’s origin. Immersive audio can replicate HRTF effects, creating the illusion of sound emanating from all directions, even when using a limited number of channels.
Spatial Audio
Spatial audio encompasses various techniques employed to attain surround sound. These methodologies comprise both binaural and object-based approaches, aimed at delivering immersive 360-degree audio experiences. Listening with stereo headphones is essential to fully experience the intended result of binaural recordings.
Binaural Recording
Binaural audio involves recording or playback of two channels arranged to simulate a 3-D effect for the listener. Our “Binaural Recordings” are captured using a specialized microphone. Listening with stereo headphones is essential to fully experience the intended result of binaural recordings.
Dynamic Range / Dynamic Range Compression
A type of processing deliberately reduces the difference in volume between the loudest and softest sections within a specific audio recording.
Object-Based Audio
Object-Based Audio represents an alternative method for achieving surround sound, wherein audio is deconstructed into separate objects and meta-data is employed to encode the relationships between these objects. This enables precise playback of the audio across diverse systems.
Atmos (Dolby Atmos)
Dolby Atmos is an exclusive object-based audio format and platform created by Dolby Laboratories. Atmos encompasses a comprehensive ecosystem, including mixing software, cinema speaker array specifications, and immersive audio hardware tailored for home entertainment.
Lossless / Lossy Formats
Lossless compression is a technique used to reduce file size without sacrificing quality, as it enables the compressed data to be fully reconstructed. This method ensures that files occupy less space, making them more convenient for downloading and storage purposes.
On the other hand, lossy compression is a method that sacrifices the original quality of files to achieve a reduction in size. While this approach significantly decreases the amount of space occupied by audio files, it comes at the expense of diminishing their sound quality.
DVD-Audio (DVD-A)
A standard DVD employs a compression format known as MLP (Meridian Lossless Packing) to provide up to 6 channels of uncompressed audio at 96 kHz/24-bit or two channels of uncompressed audio at 192 kHz/24-bit.
Blu-Ray Audio
A high-definition video disc that accommodates up to 8 channels of lossless audio (DTS-HD, Dolby TrueHD) along with two channels of lossless audio. Additionally, Blu-Ray discs support Dolby Atmos metadata integrated within a TrueHD audio stream.
PCM (Pulse Code Modulation)
PCM (Pulse Code Modulation) is a standard digital audio format widely used for recording, storing, and transmitting audio data. PCM offers a straightforward method for digitizing audio, with its fidelity determined by factors such as sampling rate and bit depth. Common PCM formats include WAV (Waveform Audio File Format) and AIFF (Audio Interchange File Format)