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AES E-Library » Anti-Alias Filters: The Invisible ...
https://www.aes.org/e-lib/browse.cfm?elib=8214
abstract={the majority of digital recording and replay equipment includes anti-alias filters which allow a degree of aliasing in the near-ultrasonic. this is normally accepted as unimportant. however, consideration of this in conjunction with the intermodulation distortion generated in loudspeakers suggests that it may have audible effects. simple measurements on …
AES 106th Convention - Paper Sessions S1 - S8
https://www.aes.org/events/106/papers19.cfm
S1 Digital Audio at 96 kHz Sampling Frequency Pros and Cons of a New Audio Technique ... S8 Anti-Alias Filters The Invisible Distortion Mechanism in Digital Audio? Richard Black, Independent Consultant, London, England TECHNICAL PAPERS SESSIONS .
Anti-aliasing filter - Wikipedia
https://en.wikipedia.org/wiki/Anti-aliasing_filter
An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to satisfy the Nyquist–Shannon sampling theorem over the band of interest. Since the theorem states that unambiguous reconstruction of the signal from its samples is possible when the power of frequencies above the Nyquist frequency is zero, a brick wall filter is an idealized …
Interpolation filters in delta-sigma DACs | Semantic Scholar
https://www.semanticscholar.org/paper/Interpolation-filters-in-delta-sigma-DACs/602e7d426297a62fe89a5748183c011fbc3c129e
DA is applied to a biquadratic digital filter, providing an example of vector dot-product and vector-matrix-product mechanization and it is seen that DA is a very efficient means to mechanize computations that are dominated by inner products.
The Quick Guide to Audio Aliasing | Black Ghost Audio
https://www.blackghostaudio.com/blog/the-quick-guide-to-audio-aliasing
To remove aliasing, you need to use an anti-aliasing filter. Quite often, an anti-aliasing filter takes the form of a low pass filter. The issue here is that when you cut the problematic frequencies, you also cut the desirable frequencies above the cutoff point. The best way to deal with aliasing is by preventing it, but if you can’t, your next best move is to apply an …
Anti-Aliasing Filters and Their Usage Explained - NI
https://www.ni.com/en-us/innovations/white-papers/18/anti-aliasing-filters-and-their-usage-explained.html
Because at this stage (before the sampler and the ADC) you are still in the analog world, the anti-aliasing filter is an analog filter. An ideal anti-alias filter passes all the appropriate input frequencies (below f1) and cuts off all the undesired frequencies (above f1). However, such a filter is not physically realizable. In practice, filters look as shown in illustration (b) below. …
An Ultra High Performance DAC with Controlled Time …
https://www.researchgate.net/publication/265938548_An_Ultra_High_Performance_DAC_with_Controlled_Time-Domain_Response
R. Black, "Anti-alias filters: the invisible distortion mechanism in digital audio?", AES 106 th convention, 1999 Inaudible High-Frequency Sounds affect …
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