Examples of 'filterbank' in a sentence
Meaning of "filterbank"
filterbank (noun) - a group of filters designed to divide an input audio signal into multiple components, each representing a different frequency range. Filterbanks are commonly used in digital signal processing for tasks such as audio compression and feature extraction
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- Alternative spelling of filter bank
How to use "filterbank" in a sentence
Basic
Advanced
filterbank
The synthesis filterbank may be comprised in a decoder.
Efficient filtering with a complex modulated filterbank.
The analysis filterbank may be comprised in an encoder.
Model based prediction in a critically sampled filterbank.
The analysis filterbank may have various properties.
Each decoupled signal is passed to a respective synthesis filterbank.
No particular filterbank implementation is important in principle.
It further comprises a secondary filterbank.
A popular type of critically sampled filterbanks is the cosine modulated filterbank.
This is commonly achieved through switching of the filterbank size.
With any filterbank there exists a tradeoff between time and frequency.
Model based prediction in a filterbank.
The transformation of a filterbank with two filters to a filter bank with four filters is considered.
Scalable audio encoding and decoding using a hierarchical filterbank.
It is to be noted that the inverse filterbank can also be somewhere else.
See also
Reshaping of the processed signal from adaptive compressor outputs is realised in a synthesis filterbank.
The same delay is introduced by the analysis filterbank or the analysis prototype function.
Time domain output signals are computed by applying the inverse processing of the filterbank.
Plenty of different filterbank implementations exist which all can be used for this purpose.
The actual time domain temporal shaping is performed after the synthesis filterbank.
A synthesis filterbank comprising a plurality of synthesis filters may have similar or the same properties.
The transposed signal is also analysed and a scale factor per filterbank channel is calculated.
Feeding an oversampled filterbank with white noise gives subband signals with coloured spectral density.
Using these measures it is possible to have a perfect reconstructing filterbank even around a switching instant.
The MDCT filterbank provides a high frequency selectivity and coding gain.
The sine extension eliminates the main alias terms present in the cosine modulated filterbank.
The output from the synthesis filterbank is thus an envelope adjusted high band audio signal.
This envelope adjuster operates using a QMF filterbank.
In the second embodiment a QMF filterbank is used to split the signal into different subbands.
Then, the bands are combined in a synthesis filterbank.
This can be linear PCM values for filterbank implementations or an LPC representation.
This confirms the appropriateness of a low-delay filterbank.
One approach utilises the QMF filterbank already used for envelope adjustment of the HFR signal.
Apparatus according to claim 1, wherein the spectral whitening is performed in a subband filterbank.
Shows an embodiment of a synthesis filterbank as an efficient implementation ;.
The filterbank may also be hard-coded on a custom chip.
It is the input xpcm in to the QMF analysis filterbank of the SBR decoder.
The synthesis filterbank contributes 5 ms of delay.
However, also a critically sampled filterbank may be used.
As such, the analysis filterbank may have a coarse frequency resolution.
Each subband image contains temporal and spatial frequencies defined by the filterbank 12.
As such, the analysis filterbank may comprise an overlapped transform.
Here, we propose an equalizer that effectively overcomes the limitations of current filterbank equalizers.
A real-time linear phase filterbank version of DirAC was implemented.
It also enables an accurate energy calculation for sinusoidal components in a real-valued subband filterbank.
In this context, an aliasing level of a filterbank is an inherent characteristic of many filterbanks.
The M subband signals are critically decimated, and fed to the second stage filterbank.
However, some filterbank based coders employ variable time / frequency resolution.
Additionally, a phase correction dependent on the filterbank channel is input into the phase adjuster.
For example, the three subbands were implemented with an order 3 IIR full rate filterbank.
