Table 4a

Table 4a: Correlation values and differences for the clipped-sample restoration of the first sample sentence, using the two programs. The differences are relative to the correlation values for the native-source to clipped-file comparisons, for each respective file format. Negative values are contained in parentheses.

Sample Sentence #1 (Native to Clipped and Restored)

File
Format

Amount
Clipped
(dB)

Correlation
(to Clipped)

Program #1

Program #2

Correlation
(to Restored)

Difference

Correlation
(to Restored)

Difference

8 kHz
8-bit

+3

0.9971

N/A

N/A

0.9806

(0.0166)

+6

0.9828

N/A

N/A

0.9451

(0.0377)

+9

0.9560

N/A

N/A

0.9131

(0.0430)

+12

0.9212

N/A

N/A

0.8800

(0.0412)

11.025 kHz
8-bit

+3

0.9976

0.9874

(0.0102)

0.9774

(0.0202)

+6

0.9845

0.9396

(0.0449)

0.9428

(0.0417)

+9

0.9591

0.8677

(0.0914)

0.8972

(0.0619)

+12

0.9252

0.7690

(0.1562)

0.8565

(0.0687)

11.025 kHz
16-bit

+3

0.9977

0.9890

(0.0087)

0.9858

(0.0119)

+6

0.9846

0.9472

(0.0373)

0.9488

(0.0358)

+9

0.9590

0.8737

(0.0854)

0.9131

(0.0459)

+12

0.9248

0.7868

(0.1380)

0.8694

(0.0554)

16 kHz
8-bit

+3

0.9977

0.9898

(0.0078)

0.9711

(0.0266)

+6

0.9846

0.9519

(0.0327)

0.9357

(0.0489)

+9

0.9589

0.8997

(0.0592)

0.9027

(0.0562)

+12

0.9249

0.8382

(0.0867)

0.8685

(0.0564)

16 kHz
16-bit

+3

0.9979

0.9910

(0.0069)

0.9714

(0.0266)

+6

0.9853

0.9547

(0.0306)

0.9367

(0.0486)

+9

0.9600

0.8976

(0.0623)

0.9050

(0.0549)

+12

0.9261

0.8363

(0.0897)

0.8731

(0.0529)