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Volume Control Technologies - Benchmark Media Systems
https://benchmarkmedia.com/blogs/application_notes/13095789-volume-control-technologies#:~:text=DSP-based%20volume%20control%20of%20digital%20audio%20can%20be,limit%20the%20dynamic%20range%20of%20the%20playback%20system.
Digital volume controls - PS Audio
https://www.psaudio.com/pauls-posts/digital-volume-controls/
Digital volume controls are the same in this regard, but a whole other story. They add nothing to the signal path: instead they rearrange the digital numbers to achieve a lower volume. This is simple to understand if you remember that each loudness level in a PCM digital system is based on a number – that number representing the level of the output signal – with …
Audio Gain Control Using Digital Potentio | Maxim …
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/1828.html
Abstract: Digital potentiometers (pots) offer advantages for audio volume (gain) control applications and can replace bulky mechanical pots, especially in handheld portable devices such as MP3 players, PDAs, cell phones, mobile Internet devices, or stereo AM/FM radios. This document describes the types of digital pots available for audio control such as logarithmic …
Volume Control Technologies - Benchmark Media Systems
https://benchmarkmedia.com/blogs/application_notes/13095789-volume-control-technologies
DSP-based volume control of digital audio can be implemented via hardware (DSP in a chip) or software (DAW, media player). It performs multiplications on the digital audio data before the data is delivered to the D/A converter. In most cases, a DSP-based volume control will limit the dynamic range of the playback system.
What’s Wrong with Digital Volume Controls?
https://www.soundstageultra.com/index.php/features-menu/general-interest-interviews-menu/311-what-s-wrong-with-digital-volume-controls
With a digital volume control, the peak signal level is reduced, but the underlying noise remains the same -- consequently, there is a reduction in dynamic range. The degree to which this loss of dynamic range is a problem depends on the inherent noise level of the DAC.
Volume Control Circuit Schematic using DS 1669 ...
https://www.circuitstoday.com/digital-volume-controller
This is a very simple project which uses two switches and an IC to electronically control the audio output from an amplifier. Digital Volume Control Circuit This is the circuit diagram of a digital volume controller for any sort of audio amplifiers or almost any circuit where a mechanical potentiometer is there (conditions apply).
Digital Volume Control Circuit - CircuitsZone.com
https://circuitszone.com/digital-volume-control-circuit/
The electronic potentiometer for digital volume control circuit is composed of two equal sections, which have a total resistance of 15 kΩ each. The electronic switches in each section are controlled by binary counter IC5.
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