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Questions tagged [compression]

The tag has no usage guidance.

0
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1answer
44 views

Choosing usb-c earphones that are lossless? [closed]

I know the USB-C audio standard support multiple compression standards, some lossy, some lossless. Can i control this in software or hardware ? how can i choose earphones that will guarantee ...
0
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1answer
87 views

Audio amplifier alignment procedure questions

I have a couple of questions related to the alignment procedure for the amplifier of Klipsch SW-12, a powered subwoofer. Its service manual (link below) says the following: (page 3) COMPRESSION ...
1
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1answer
163 views

xilinx FPGA difference between bitgen and prom compression?

Page 39 of UG161 talks about compression/decompression and implies that either bitgen or prom compression can be used to shorten the config bit stream size. Most importantly I need to know whether, ...
1
vote
2answers
440 views

IP2 1dB compression point representation and formula

I'm trying to calculate the 1dB compression point in a second order interception. I did find many examples using third order, however, for a second order, I couldn't find much. In Matlab I could ...
0
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1answer
339 views

Normalizing audio signal for ADC input

What is the best way to limit an audio signal for ADC input (to 0V - 3.3V) with out disrupting it harmonically? Ideally, I'd like the conditioned signal entering the ADC to be a signal uniformly ...
-5
votes
1answer
75 views

Circuit for DFT transform? [closed]

In my recent project I need to apply DFT to signal and find it's coefficient values. Can you please suggest any circuit/chip which can perform DFT/FFT transform on analog signals?
5
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1answer
446 views

Video Out through USB (or other means)

For an medium-high speed ADC converter, my FPGA is currently receiving 16-bit samples at 54 MHz over an LVDS interface (4 differential signal lines plus 1 differential clock signal). These are video/...
1
vote
1answer
86 views

Dynamic Range Compressor Pedal Operation

A Dynamic Range Compressor works by "clamping" an incoming signal. Above a certain input threshold, the gain of the device is reduced to a lower level. This has the effect of making quieter sounds ...
0
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3answers
106 views

Compression schemes sending difference between successive samples only, what would happen if error occurs?

There are multiple inginious data compression methods in which we send the difference between current and next sample rather than the actual value of the sample. This makes it possible to send the ...
2
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1answer
111 views

Why does using Discrete Cosine Transform lead to data compression?

DCT is used in JPEG standard along with Huffman encoding to further compress the result. I understand that most of the data in spatial domain which is an image is "present in low frequencies". This is ...
1
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0answers
51 views

Compression and communication power consumption trade-offs

Let's say I'd like to save battery power consumption when sending data to remote devices connected wirelessly, i.e., sensor networks. One of the ideas may be compressing the data to reduce the number ...
0
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1answer
713 views

port masking and ports in pic

i have data at portb on microprocessor (pic), i need to compress three bits rb3,rb4, and rb5, the other pins are various IO on port b, i wish to compress that info held in those three pins on port b, ...