[solved]-Two Recording Mangers Lectopialand Records Bobbie Ray Henceforth Br Charlie Davidson Hence Q39039629
Two recording mangers at LectopiaLand Records, Bobbie Ray (henceforth, “BR”) and Charlie Davidson (henceforth “CD”), and are wondering what sampling rate to use for their fine stereo audio recordings that have a bandwidth of 20 Hz to 18 kHz BR advocates for 192 kHz, 24-bit sampling (Blue-Ray audio standard). BR claims that the higher frequency sounds in the recording would be “corrupted” if they only have a couple of samples points per wave CD suggests that 44.1 kHz, 16-bits sampling (CD audio standard) is sufficient. CD claims that the sampling ofa band-limited signal is a lossless and rather that any “loss” or “corruption” is from the anti-aliasing, low-pass filters on the input. We assume the audiences’ hearing range has a bandwidth of 20 Hz to 18kHz and that the source recording has 12-bits of dynamic range. Given your understanding of signal processing and sampling, let us Please remember to justify all answers. explore, which sampling policy should be used. A. CD asserts that “(bandlimited) sampling is a lossless process.’ (1) Is this correct? (2) Can the audio signal be perfectly reconstructed using a CD audio standard? 25 B. BR adds that the anti-aliasing filters have a transition band. (1) How large a transition band does each sampling strategy (Blue-ray audio and CD audio) al low in this case? (2) What sampling strategy does this suggest? C. BR also claims that “higher sampling rates have better time resolution.” CD counters that “sampling bandlimited signals has nothing to do with time resolution (i.e., it has infinite time resolution)” Please explain. Who is correct? D. Finally, BR contends that higher sampling rate will result in bigger files that take more time, and thus are more arduous to copy. For a recording that is 3004 seconds long (50:04 min:sec), (1) How much bigger will the resulting file be? (2) How much longer will it take to transmit on an average Australian Internet Connection (11.1 Mbps’)? [Please assume: no compression, negligible codec effects, negligible network overhead, negligible packet loss, etc.] Show transcribed image text Two recording mangers at LectopiaLand Records, Bobbie Ray (henceforth, “BR”) and Charlie Davidson (henceforth “CD”), and are wondering what sampling rate to use for their fine stereo audio recordings that have a bandwidth of 20 Hz to 18 kHz BR advocates for 192 kHz, 24-bit sampling (Blue-Ray audio standard). BR claims that the higher frequency sounds in the recording would be “corrupted” if they only have a couple of samples points per wave CD suggests that 44.1 kHz, 16-bits sampling (CD audio standard) is sufficient. CD claims that the sampling ofa band-limited signal is a lossless and rather that any “loss” or “corruption” is from the anti-aliasing, low-pass filters on the input. We assume the audiences’ hearing range has a bandwidth of 20 Hz to 18kHz and that the source recording has 12-bits of dynamic range. Given your understanding of signal processing and sampling, let us Please remember to justify all answers. explore, which sampling policy should be used. A. CD asserts that “(bandlimited) sampling is a lossless process.’ (1) Is this correct? (2) Can the audio signal be perfectly reconstructed using a CD audio standard? 25 B. BR adds that the anti-aliasing filters have a transition band. (1) How large a transition band does each sampling strategy (Blue-ray audio and CD audio) al low in this case? (2) What sampling strategy does this suggest? C. BR also claims that “higher sampling rates have better time resolution.” CD counters that “sampling bandlimited signals has nothing to do with time resolution (i.e., it has infinite time resolution)” Please explain. Who is correct? D. Finally, BR contends that higher sampling rate will result in bigger files that take more time, and thus are more arduous to copy. For a recording that is 3004 seconds long (50:04 min:sec), (1) How much bigger will the resulting file be? (2) How much longer will it take to transmit on an average Australian Internet Connection (11.1 Mbps’)? [Please assume: no compression, negligible codec effects, negligible network overhead, negligible packet loss, etc.]
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