How many cycles of a 4KHz sound wave will occur in 0.4seconds?

What is the minimum sample rate for a signal frequency of 4kHz?

df

What is the highest frequency that can normally be transmitted by a conventional telephone system?

4000 Hz (4kHz)

A telephone line has 4 KHz?

Most phone lines sample at 8kHz, which means any signal beyond the 4kHz mark will be down sampled to the point of significant data loss and returned as noise, so yes, most phone lines only operate with 4kHz of bandwidth.

A communication channel with additive white gaussian noise has a bandwidth of 4kHz and SNR of 31dB. Its channel capacity is?

20kbps

On cubase 4 can you remove vocals from cds?

No you cannot. But may be u can cut the vocal frequency range which is between 1-4khz but ul also be deleting other instruments that plays in that wavelength.

What is the bandwidth of a analog voice channel?

Bandwidth is defined as a frequency span - the difference between a high frequency and a lower frequency. For the low end voice it depends if its male bass bariton tenor or female alto and soprano. A bass voice goes down to 100 Hz. The harmonics go up to 15 kHz. So the bandwidth for voices is arround 15 kHz.

What Does SPL stand for and how is it measured?

SPL stands for Sound Pressure Level. It basically relates to how much acoustic energy is in sound that you hear. SPL is measured in decibels, or dB. The base reference for SPL is 0dB_SPL, which corresponds to a pressure of 0.0002 dynes per square centimeter, or about the quietest sound a young, undamaged ear can hear, between 1khz and 4khz. SPL of typical situations are: * quiet home at night = 50dB * average conversation = 65dB * heavy street traffic 5 feet away = 90dB * loud rock music at concert = 112dB (or more) * threshold of pain = 130dB * rifle fired 3 feet away = 140dB Some SPL trivia: * An increase of 3db in loudness is just barely perceived as a change, 10dB seems about twice a loud as before to human ears. * If you are playing sound (music, etc.) through an amplifier, and you double the output power by turning up the volume (say, from 20 watts to 40 delivered to the speaker), the SPL will go up about 6dB. * There are several different weighting schemes, the two most popular being A and C weighting, that (supposedly) modify the SPL curve to more closely fit the way our ears hear. "A" weighting is commonly used to measure noise, and test for sound that may damage ears. "C" weighting is commonly used to measure sound levels such as audio sound system output, listening rooms, concerts, and the like. * Pure SPL by itself does not really tell us how loud we will perceive a sound, since the human ear reacts differently to different frequencies, thus the reason for weighting curves. SPL is measured with, yup, an SPL meter. SPL, or 'Sound Level' meters, use a calibrated microphone and amplification to measure and display SPL on an analog meter or digital display.

How you can Find the maximum data rate of a noiseless 4-kHz channel-using Analog encoding eg QPSK with 2 bits per sample?

for 4KHz then for noisy channel using Shannon theorem, sampling rate will be 8K samples/sec. So with 2 bit encoding, 2 bits are sent per sample. So the data rates is 8000 samples / sec * 2 bits = 16000bits / sec = 16kbps.

A noiseless 4 kHz channel is sampled every 1 msec What is the maximum data rate?

by Nyquist theorem max data rate = 2H log2 V bits /sec so H= 4KHz.. and v=2 ( say binary is transmitting ) therefore max data rate = 2 * 4 *103 *log22 bps max data rate = 8000 bps Bcoz it is sampling per 1ms so

Difference between channel and bandwidth?

a channel is actually a path through which a signal of a particular frequency travels and bandwidth is the capacity of that path it tells about the number or range of frequencies which a path can carry

What is the power of a precision power pcx480 amp?

Specs: 4 Channel 4 ohm: 80W per channel 2 ohm: 160W per channel Bridged: 320W Damping: >500 S/N Ratio: >110dB Dimension: 2.375" x 10" Length: 18.5" THD: 02% Power Input: 4 Guage Freq. Resp.: 4.5-100k I/P Sens.: .15-12V X/O Slope: 12dB X/O Freq.: 30Hz-4kHz X/O Type: 2 way Input Type: Adv. Inst. Cooling Fan: Yes QBass: QBass™

How many cycles of a 4KHz sound wave will occur in 0.4seconds?

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What is the lowpass filter cutoff frequency that must be used to decimate to reduce the sampling rate from 8kHz to 4kHz?