0
Adaptive differential pulse-code modulation(ADPCM) is a variant of differential pulse-code modulation (DPCM) that varies the size of the quantization step, to allow further reduction of the required bandwidth for a given signal-to-noise ratio.
Typically, the adaptation to signal statistics in ADPCM consists simply of an adaptive scale factor before quantizing the difference in the DPCM encoder.[1]
ADPCM was developed in the early 1970s at Bell Labs for voice coding, by P. Cummiskey, N. S. Jayant, and James L. Flanagan.[2]
susheelonline.com
What else can I help you with?
What is adaptive programming?
An adaptive program is one that changes its behavior base on the current state of its environment. This notion of adaptivity is formalized, and a logic for reasoning about adaptive programs is presented. The logic includes several composition operators that can be used to define an adaptive program in terms of given constituent programs; programs resulting from these compositions retain the adaptive properties of their constituent programs. The authors begin by discussing adaptive sequential programs, then extend the discussion to adaptive distributed programs. The relationship between adaptivity and self-stabilization is discussed. A case study for constructing an adaptive distributed program where a token is circulated in a ring of processes is presented.
Where is adaptive delta modulation used?
Adaptive delta modulation is used in audio communication systems to avoid the two drawback of delta modulation.
What characteristics of a project call for an adaptive approach to the SDLC?
Projects that exhibit high levels of uncertainty, rapidly changing requirements, or complex stakeholder needs call for an adaptive approach to the Software Development Life Cycle (SDLC). Additionally, when the technology is emerging or when user feedback is critical to development, an iterative and flexible methodology, such as Agile, becomes essential. This allows teams to respond quickly to changes and continuously refine the product based on real-time input and evolving conditions.
What are the four key components of psychotherapy?
1. A healing agent 2. A help-seeker 3. A healing relationship 4. An ultimate objective of removing distress and enhancing adaptive competence of the help-seeking for his or her own sake
What is a good product for database security?
LTS Secure Intelligence Driven SOC is integrated Context-aware Security protection platforms that provides and integrate prediction, prevention, detection and response capabilities by leveraging adaptive security framework. LTS Secure comprehensive SOC provides continuous monitoring for all layers of the IT stack: network packets, flows, OS activities, content, Identities, user behaviors and application transactions for protection from advanced threats using integrated Adaptive Security framework.For more information Click here
What is the difference between dpcm and adpcm?
there is no difference there is no difference
Why is the bandwidth of DPCM is greater than PCM?
in pcm entie sample is sent.. where as in dpcm the difference between the predicted value and the original sample is sent which will be smaller when compared rto the original sample..
Why DPCM is used over PCM?
Let (M) and (D) be the peak amplitudes of signals m(t) and d(t) respectively. If the same quantization level (L), is used to sample both signals. The quantization step (Dv) in DPCM is reduced by a factor of (D/M). The quantization noise power is [(Dv)^2]/2. So we can say, that in DPCM the quatization noise reduces by the factor (M/D)^2. As the SNR is inversely proportional to Noise, this parameter (SNR) increases by the same factor. In Practice the SNR improvement may be as high as 25 dB in such cases as short-term voiced speech spectra. Alternatively for the same SNR, the bit rate for DPCM could be lower than for PCM by 3 to 4 bits per sample. Thus, telephone systems using DPCM can often operate at 32 kbits/s (4 bits * 8000 saples/s) or even 24 kbit/s (3 bits * 8000 saples/s). So DPCM could improve the SNR of the system, using less bandwidth.
The rapid formation of many new species as in this case is called?
Adaptive Radiation :)
What is an adaptive zone?
An adaptive zone is an environment which allows the development of adaptive radiation.
Adaptive system and non-adaptive system?
Adaptive systems are ones that are continually changing to meet the demands of the environment. Non-adaptive systems do not change.
Adaptive expectations hypothesis?
why are adaptive expectations inefficient
What is an adaptive enzyme?
An adaptive enzyme is an enzyme which is present in a cell only under conditions where it is clear of adaptive value.
When was Adaptive Planning created?
Adaptive Planning was created in 2003.
Difference between adaptive and non adaptive algorithm?
Non adaptive algorithm requires any changes to be made manually. Adaptive algorithms are able to make any changes automatically.
What has the author Robert K Tyson written?
Robert K. Tyson has written: 'Principles of adaptive optics' -- subject(s): Adaptive Optics, Optics, Adaptive 'Astronomical adaptive optics systems and applications III' -- subject(s): Congresses, Adaptive Optics, Astronomical instruments, Imaging systems in astronomy, Design and construction 'Lighter side of adaptive optics' -- subject(s): Adaptive Optics, Humor, Imaging systems in astronomy, Optics, Adaptive
When was The Adaptive Ultimate created?
The Adaptive Ultimate was created in 1935-11.
