Hardware Implementation of Adaptive-Differential Pulse Code Modulation Speech Compression Algorithm

2014 ◽  
Vol 2 (2) ◽  
pp. 1-10 ◽  
Author(s):  
Marcus L. George ◽  
◽  
Geetam Singh Tomar ◽  
Keyword(s):  
Hardware Implementation ◽  
Differential Pulse ◽  
Compression Algorithm ◽  
Speech Compression ◽  
Pulse Code Modulation ◽  
Differential Pulse Code Modulation ◽  
Code Modulation

scholarly journals Lossless Compression Algorithm and Architecture for Reduced Memory Bandwidth Requirement with Improved Prediction Based on the Multiple DPCM Golomb-Rice Algorithm

2021 ◽  
Author(s):  
Imjae Hwang ◽  
Juwon Yun ◽  
Woonam Chung ◽  
Jaeshin Lee ◽  
Cheong-Ghil Kim ◽  
...  
Keyword(s):  
High Efficiency ◽  
Lossless Compression ◽  
Differential Pulse ◽  
Compression Algorithm ◽  
Memory Bandwidth ◽  
High Efficiency Video Coding ◽  
Pulse Code Modulation ◽  
Differential Pulse Code Modulation ◽  
Bandwidth Requirement ◽  
Code Modulation

In a computing environment, higher resolutions generally require more memory bandwidth, which inevitably leads to the consumption more power. This may become critical for the overall performance of mobile devices and graphic processor units with increased amounts of memory access and memory bandwidth. This paper proposes a lossless compression algorithm with a multiple differential pulse-code modulation variable sign code Golomb-Rice to reduce the memory bandwidth requirement. The efficiency of the proposed multiple differential pulse-code modulation is enhanced by selecting the optimal differential pulse code modulation mode. The experimental results show compression ratio of 1.99 for high-efficiency video coding image sequences and that the proposed lossless compression hardware can reduce the bus bandwidth requirement.

Entropy-coded hybrid differential pulse-code modulation

1983 ◽  
Vol 19 (2) ◽  
pp. 63 ◽  
Author(s):  
N.M. Nasrabadi ◽  
S.K. Pal ◽  
R.A. King
Keyword(s):  
Differential Pulse ◽  
Pulse Code Modulation ◽  
Differential Pulse Code Modulation ◽  
Code Modulation
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