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What else can I help you with?
How does a voltage controlled amplifier work?
A Voltage Controlled Amplifier or VCA is a device whose gain is set by the voltage level of a control signal.
What is common mode voltage?
I assume you're referring to an amplifier circuit. In a differential amplifier, there are two inputs. The common mode output voltage is the output voltage that will result from the same voltage being applied to both inputs. Typically this is very low, as the common mode rejection ratio (CMRR) is very high in a differential amplifier. This is an ideal characteristic (high CMRR) as it means unwanted noise will not be amplified and potentially squelch out the desired signal; this is why a differential amplifier is used in high quality sound equipment. Three wires are used - a ground, and two signal wires that are opposite each other. Noise will inherently "hop on" the signal wires, but as they are close to one another, it is likely the noise will be nearly the same magnitude and sign on each wire. Since the amplifier CMRR is high, this noise does not propogate through the amplifier, while the original signal is amplified.
What is the difference between voltage and signals?
That's a pretty good question. In computers a change in voltage level is usually the data signal. There are many industrial applications where a change in current is used as a signal. In fact ANY change in voltage or current can be used. Data signals are very weak (high impedance) compared to power supply voltage and currents.
How do you convert signals from voltage levels to their corresponding decibel equivalents and from decibel levels to their corresponding voltage or current levels?
convert signal gains or losses to comparative decible reading.
How do you amplify a square signal?
To easily do that all you need is a higher voltage level or the level that you desire . square waves usually are states of [1] or rail voltage and on[0] saturation voltage. to linearly amplify these square waves you will need a hi band pass amplifier . Possibly 50megahz or so
What is an unwanted signal that is mixed with the normal voltage entering a computer?
Noise
In an amp What is better high or low signal to noise ratio?
Signal to noise ratio is the difference between the noise floor and the reference level.
What is the difference between the noise reduction ratio (NRR) and the signal-to-noise ratio (SNR) in audio processing?
The noise reduction ratio (NRR) measures how much background noise is reduced by a device or process, while the signal-to-noise ratio (SNR) compares the level of the desired signal to the level of background noise present in audio processing.
How can I use a Johnson noise calculator to determine the level of noise in a circuit?
To determine the level of noise in a circuit using a Johnson noise calculator, you need to input the resistance and temperature of the circuit into the calculator. The calculator will then provide you with the Johnson noise voltage, which represents the level of noise in the circuit.
How can a noise gate be effectively integrated into a signal chain to improve audio quality and reduce unwanted noise?
A noise gate can be placed in the signal chain after the audio source and before any effects or amplification. By setting the threshold level correctly, the noise gate can automatically cut off any sound below that level, reducing unwanted noise while preserving the audio quality of the desired signal.
How does a voltage controlled amplifier work?
A Voltage Controlled Amplifier or VCA is a device whose gain is set by the voltage level of a control signal.
What do engineers use the signal to noise ratio for?
Signal to noise ratio is a measure of signal strength to the background noise. Engineers use the signal to noise ratio to improve digital signal processing.
What is the significance of signal to noise ratio in radiology imaging quality assessment?
The signal-to-noise ratio in radiology imaging is important because it measures the clarity of the image by comparing the strength of the signal (desired information) to the level of background noise. A higher signal-to-noise ratio indicates a clearer and more accurate image, which is crucial for accurate diagnosis and treatment planning in radiology.
How is sound level measured. At what level does sound become noise?
Sound level is measured in decibels (dB) by a sound pressure level meter (SPL meter).There isn't really a specific level at which "sound" becomes "noise." "Noise" is a somewhat subjective term for "sound that I do not want to hear"; for example, if rap music is at all audible, I personally consider it "noise" though my son does not.In signal processing, "noise" means "anything that is not a deliberate signal" and generally has a significantly lowerdB level than the signal does.
What is the difference between Signal-to-Noise Ratio (SNR) and Noise Reduction Rating (NRR) in the context of audio equipment?
Signal-to-Noise Ratio (SNR) measures the quality of the signal compared to the level of background noise, indicating how clear the audio is. Noise Reduction Rating (NRR) quantifies how much external noise is reduced by a device, such as headphones or earplugs, to improve the listening experience.
What are the three interrelated major elements of cable bandwidth?
Distance, Frequency, and Signal-level-to-noise-level ratio (SNR)
Clear explanation of the circuit?
The input is given through the electret microphone. The capacitor C1 filters the dc signal and allows the ac signal to pass through. The filtered signal s allowed to the dual op-amp. The 2 non-inverting amplifiers in the dual op-amp amplifies the signal. The other capacitor C3 further filters the dc signal and allows only ac signal to b amplified. The SW1 and SW2 are the same switch connected internally. The sliding switches are used to set the gain and then with that gain the output voltage is set. The transistor acts as a switch. If the voltage exceeds the given level, the transistor closes the circuit and the LED glows. If the noise in the room doesnt exceed the given level, the circuit remains opened. This circuit just indicates if the noise in the room exceeds the given level.
