How to remove the LSB from the audio recording?, Electrical Engineering

Using the audiorecorder() function in MATLAB, make a recording of your voice. Use a sample rate of 8kHz, 16 bits per sample, and aim to record around 2 seconds worth.

Quantize the audio samples down from the original 16 bits by removing the least-significant bit (LSB) from the waveform, to make a 15 bit recording. Repeat for 14, 13, 12 bits, down to 1 bit.

Explain how you would do this in MATLAB, and implement your approach.

Listen to the recordings, and make a table with the number of bits and the corresponding quality assessment. This can simply be a subjective assessment; use terms such as ''no perceptual difference'', ''minor noise present'', ''quite noisy'', ''poor quality'' etc.

Calculate the signal-to-noise ratio in each case, and add that to your table. Explain how you calculated the SNR.
Posted Date: 3/24/2013 7:23:58 AM | Location : Pakistan







Related Discussions:- How to remove the LSB from the audio recording?, Assignment Help, Ask Question on How to remove the LSB from the audio recording?, Get Answer, Expert's Help, How to remove the LSB from the audio recording? Discussions

Write discussion on How to remove the LSB from the audio recording?
Your posts are moderated
Related Questions
Describe the nature of electricity


Q. What do you mean by Negative Impedance Converter? The op-amp circuit of Figure causes a negative resistance R in between the input terminal and ground. In the more general

Q. D flip-flop - latch or delay element? The symbol for the clocked D flip-flop is shown in Figure (a), in which the two output terminals Q and ¯ Q behave just as in the SRFF,

Faraday's Law Faraday's laws of electromagnetic induction state: i)  An induced e.m.f is setup when the magnetic field linking that circuit changes ii)  The magnitude of

Q. A coaxial cable with polyethylene dielectric (ε r =2.26) connects an antenna to a receiver 30maway. Determine the velocity of wave propagation in the cable and the delay of the

Q. For the mechanical spring-mass-friction system shown in Figure, the differential equation relating the force F(t) and the velocity u(t) is given by  where M is themass,D

Q. What is an amplifier? What are the various types of amplifiers? AMPLIFIER: A circuit that increases the amplitude of the given input signal is an amplifier. A small a.c. sig

Drift Current Density and Conductivity: Consider a conductor of length / meters and cross sectional area a square meters, as shown in Fig. Let the number of free electrons ava