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AES E-Library » The Effect of Downmixing on Measured Loudness
https://www.aes.org/e-lib/browse.cfm?elib=16594#:~:text=The%20typical%20downmix%20algorithm%20for%20a%20standard%205.1,left%20and%20right%20channels%20of%20the%20downmixed%20signal.
Understanding Audio Downmix and Surround Sound …
https://bobpariseau.com/blog/2018/6/20/understanding-audio-downmix-and-surround-sound-processing-or-wait-ive-got-the-wrong-number-of-speakers
But just as with Downmixing, the MAIN players here today are Dolby Laboratories and DTS. For example, Dolby licenses an algorithm known as PLII (or PLIIx for 7.1 speaker systems), and you are likely to find it included in most AVRs. Some of these algorithms, in some AVRs, will even offer adjustments.
AES E-Library » Algorithm to Determine Downmixing ...
https://www.aes.org/e-lib/online/browse.cfm?elib=19770
A unified algorithm to derive downmixing coefficients from a specific multichannel format to arbitrary reproduction formats with a smaller number of channels was investigated. The proposed method attaches importance to maintaining both basic audio quality and spatial impression. It involves appropriately changing the positions of channels in source formats, or locating the …
An improved 5-2 channel downmix algorithm for 3D audio ...
https://link.springer.com/chapter/10.1007/978-3-319-50209-0_23
With the continuous development of virtual reality (VR), 3D audio is widely used particularly for headphones. Therefore, a multi-channel to two-channel downmixing approach is in great demand. Many traditional methods have been proposed, but these methods cannot meet the requirements for higher perceptual quality in VR scenes.
Upmix & Downmix - Emotion Systems
https://www.emotion-systems.com/upmix-and-downmix/
The Downmix algorithm can be used as a reference to verify the quality of your stereo downmix in both Lo/Ro and Lt/Rt or as a high quality adaptive downmixer to create a separate stereo transmission feed. There are two features unique to the SoundField downmix algorithm, the Adaptive EQ and the Ambience Mode.
Upmixing and Downmixing Two-channel Stereo Audio for ...
https://ieeexplore.ieee.org/document/4341580
In this comprehensive study, algorithms for upmixing, downmixing, and joint up/downmixing are examined and compared. Five upmixing algorithms based on signal decorrelation and reverberation are employed to convert two-channel stereo signals to jive-channel signals. For downmixing, methods ranging from mixing with simple gain adjustment to …
(PDF) Novel 5.1 Downmix Algorithm with Improved …
https://www.researchgate.net/publication/237098997_Novel_51_Downmix_Algorithm_with_Improved_Dialogue_Intelligibility
A new algorithm for 5.1 to stereo downmix is introduced that addresses the problem of dialogue intelligibility. The algorithm utilizes proposed signal processing algorithms to …
(PDF) Upmixing and Downmixing Two-channel Stereo …
https://www.researchgate.net/publication/3183224_Upmixing_and_Downmixing_Two-channel_Stereo_Audio_for_Consumer_Electronics
Five upmixing algorithms based on signal decorrelation and reverberation are employed to convert two-channel stereo signals to jive-channel signals. For …
What Is Downmixing? Part 2: Surround (LtRt) | TV Tech
https://www.tvtechnology.com/opinions/what-is-downmixing-part-2-surround-ltrt
Stereo downmixing is easy, but creating a two-channel downmix of a 5.1 channel program that is matrix surround (LtRt) compatible while sort of preserving stereo and mono is much more difficult. This is the default downmix mode of most cable and satellite set-top boxes for two-channel audio output, usually via red and white RCA or pin-jack ...
AES E-Library » The Effect of Downmixing on Measured …
https://www.aes.org/e-lib/browse.cfm?elib=16594
Lavoie, "The Effect of Downmixing on Measured Loudness," Engineering Brief 38, (2011 October.). doi: Abstract: ITU-R BS.1770 has become the standard for loudness measurement in broadcasting. The measurement algorithm is equally adapted to 5.1 channel audio signals as it to a 2-channel downmix. Due to the manner by which the channels are …
Audio features - w2.mat.ucsb.edu
https://w2.mat.ucsb.edu/240/E/static/notes/Audio_features.html
Downmixing. DC Removal. Offline. Real-time. i.e. windowed. Normalization. Or level matching ... the choice of the specific features used in an algorithm will in the end always be driven by the task at hand. Feature. A single value ... Peeters, G. (2004). A large set of audio features for sound description (similarity and classification) in the ...
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