#basic elements

(via https://www.youtube.com/watch?v=gnJE6HQV5nU)

Basic ★ Elements - part I - FIRE - In unserer hektischen Zeit, in der niemand mehr Zeit hat, muss man sich die Zeit nehmen, um den Moment genießen zu können - back to the roots - back to the basic elements - back to the ART of fire / clip © 2017 by Bertram Maria Keller/ARTbmk★ www.artbmk.de

(via https://www.youtube.com/watch?v=c83rIFbK4VQ)

Serigraphy series reffering to components of printing process (layers of color, cropping signs) in comparison to biological, fleshly shapes, less or more associating body parts.

Exibitions:

2018 – II Review of contemporary art NOWA AWANGARDA, Galeria Szyb Wilson, Katowice

2018 – Students Graphic of the Year, Rondo Sztuki, Katowice

Introduction:

PCM Stands for Pulse Code Modulation. When a carrier signal’s characteristics are changed in response to the message signal’s current values, this process is known as modulation. The carrier signal, which has a high frequency and carries no data but is used for long-distance transmission, is the signal that is being conveyed for communication. The message signal is the signal that is being transmitted for communication. Numerous modulation methods exist, and they are divided into groups based on the kind of modulation they use. Pulse Code Modulation is the one that is most frequently used for digital modulation. To transform a signal’s analogue information into a binary sequence, or 1s and 0s, pulse code modulation is used. A binary sequence will appear in a PCM’s output.

There are two types of pulse code modulations:

· Differential pulse code modulation (DPCM)

· Adaptive differential pulse code modulation (ADPCM)

Basic Elements of Pulse Code Modulation (PCM)

Sampling, Quantizing, and Encoding are done in the analogue-to-digital converter part and make up the transmitter component of a pulse code modulator circuit. Prior to sampling, a low pass filter prevents the aliasing of the message signal. Regeneration of damaged signals, decoding, and reconstruction of the quantized pulse train are the fundamental processes of the receiver section.

1. Low Pass Filter

To prevent aliasing of the message signal, this filter removes high-frequency components from the input analogue signal that is higher in frequency than the highest frequency of the message signal.

2. Sampler

This method aids in gathering sample data at instantaneous message signal values to recreate the original signal. The sampling theorem states that the sample rate must be more than twice the highest frequency component W of the message signal.

3. Quantizer

Quantizing is the process of constructing the data and removing extraneous bits. When the sampled output is sent into the Quantizer, the unnecessary bits are removed, and the value is compressed.

4. Encoder

The encoder converts analogue signals to digital format. Each quantization level is identified by a binary code. Here, sampling was carried out using the sample-and-hold method. The LPF, Sampler, and Quantizer components will function as an analogue to the digital converter. Encoding reduces the amount of bandwidth consumed.

5. Regenerative Repeater

The signal intensity is increased in this section. To make up for the signal loss, reconstruct the signal, and boost its strength, the channel’s output additionally incorporates a regenerative repeater circuit.

6. Decoder

To recreate the original signal, the decoder circuit decodes the pulse-coded waveform. The demodulator is this circuit.

7. Reconstruction Filter

A low-pass filter known as the reconstruction filter is used to recover the original signal following the completion of the digital-to-analogue conversion by the regenerative circuit and the decoder.

Conclusion: