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US4462048A - Noise reduction circuitry for audio signals ...
https://patents.google.com/patent/US4462048A/en#:~:text=A%20signal%20substitution%20system%20is%20employed%20in%20audio,broadening%20what%20are%20otherwise%20very%20narrow%20signal%20
Audio Processor Circuit - ElectroSchematics.com
https://www.electroschematics.com/audio-processor/
Audio Processor Circuit. Received by Email. This audio processor circuit features the SSM2045 IC which was developed specially for electronic music applications and the 741 opamp IC. The circuit is configured as a low pass filter with a DC voltage control for gain. The input signal is set to a working level of 150mVpp through the resistor R1.
Audio Signal Processing - an overview | ScienceDirect …
https://www.sciencedirect.com/topics/engineering/audio-signal-processing
Audio Processing. Steven W. Smith, in Digital Signal Processing: A Practical Guide for Engineers and Scientists, 2003. Audio processing covers many diverse fields, all involved in presenting sound to human listeners. Three areas are prominent: (1) high fidelity music reproduction, such as in audio compact discs, (2) voice telecommunications, another name for telephone networks, …
Certain Audio Processing Integrated Circuits and …
https://www.usitc.gov/publications/337/pub3991.pdf
certain audio processing integrated circuits, and products containing same 337-ta-538 certificate of service i, marilyn r. abbott, hereby certify that the attached notice of commission final determination of a violation of section 337 as to two patents and issuance fo a limited exclusion order; termination of
Audio signal processing - Wikipedia
https://en.wikipedia.org/wiki/Audio_signal_processing
An analog audio signal is a continuous signal represented by an electrical voltage or current that is analogous to the sound waves in the air. Analog signal processing then involves physically altering the continuous signal by changing the voltage or current or charge via electrical circuits.. Historically, before the advent of widespread digital technology, analog was the only method by …
A BIOLOGICALLY INSPIRED FRONT END FOR AUDIO SIGNAL ...
http://hasler.ece.gatech.edu/Courses/ECE6435/theses/graham_david_w_200608_phd.pdf
This research focuses on biologically inspired audio signal processing using programmable analog circuitry. This research is inspired by the biology of the human cochlea since biology far outperforms any engineered system in converting audio sig-nals into meaningful electrical signals. The human cochlea efficiently decomposes any
Newnes Circuits Manual Series - nvhrbiblio.nl
https://nvhrbiblio.nl/biblio/boek/Marston%20-%20Audio%20IC%20circuits%20manual.pdf
1 Audio processing circuits An audio processor can be defined as any circuit that takes an audio input signal and generates an audio output that is directly related to that input. The processor may, for example, simply invert the original signal and/or provide it with a fixed amount of voltage gain, as in the case of a linear amplifier; or it
[PDF] A BIOLOGICALLY INSPIRED FRONT END FOR …
https://www.semanticscholar.org/paper/A-BIOLOGICALLY-INSPIRED-FRONT-END-FOR-AUDIO-SIGNAL-Graham/150d995dba233996ce0d6e8b58cf24ae8ff9e15d
A BIOLOGICALLY INSPIRED FRONT END FOR AUDIO SIGNAL PROCESSING USING PROGRAMMABLE ANALOG CIRCUITRY @inproceedings{Graham2006ABI, title={A BIOLOGICALLY INSPIRED FRONT END FOR AUDIO SIGNAL PROCESSING USING PROGRAMMABLE ANALOG CIRCUITRY}, author={David W. Graham}, year={2006} } D. Graham; Published 5 July 2006; …
Customization of a DSP integrated circuit for a consumer ...
https://dlnext.acm.org/doi/10.1109/30.20170
The design of a toy doll's speech recognition and response circuitry is summarized. The digital signal processing (DSP) system used as the core of this audio processing circuitry is …
Amplifier Circuits - Learn About Electronics
https://www.learnabout-electronics.org/Downloads/amplifiers-module-04.pdf
complex digital signal processing. What you’ll learn in Module 4.2 After studying this section, you should be able to: Understand typical circuits used for tone control in audio amplifiers. • Tone Control. • Passive Bass - Treble Control. • Active Bass - Treble Control. • IC control of common amplifier functions. Fig. 4.2.1 Simple ...
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