A pure tone at f0 with P0 dB SPL is encoded such that the quantization noise is masked. Let us

Step 1: Calculate the effective number of bits for each case using the given signal-to-noise rat

A pure tone at f0 with P0 dB SPL is encoded such that the...

A pure tone at $f_0$ with $P_0 \mathrm{~dB} \mathrm{SPL}$ is encoded such that the quantization noise is masked. Let us assume that a 256-point MDCT produced an in-band signal-to-noise ratio of $S N R_A$ and encodes the tone with $b_A$ bits/sample. And, a 1024-point MDCT yielded $S N R_B$ and encodes the tone with $b_B$ bits/sample. Figure 6.30. Audio frames x1(n), x2(n), x3(n), and x4(n) for Problem 6.11. FIGURE CANT COPY In which of the two cases we will require the most bits/sample (state if $b_A>b_B$ or $b_A<b_B$ ) to mask the quantization noise.

A pure tone at $f_0$ with $P_0 \mathrm{~dB} \mathrm{SPL}$ is encoded such that the quantization noise is masked. Let us assume that a 256-point MDCT produced an in-band signal-to-noise ratio of $S N R_A$ and encodes the tone with $b_A$ bits/sample. And, a 1024-point MDCT yielded $S N R_B$ and encodes the tone with $b_B$ bits/sample.
Figure 6.30. Audio frames x1(n), x2(n), x3(n), and x4(n) for Problem 6.11.
FIGURE CANT COPY
In which of the two cases we will require the most bits/sample (state if $b_A>b_B$ or $b_A<b_B$ ) to mask the quantization noise.

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