Peaq Algorithm - OPTICOM OPERA - V 3.5 User Manual

C H A P T E R 8 : T E C H N I C A L

PEAQ Algorithm

General:
Algorithm:
Sample rates:
Maximum Delay Compensation File-Based Version:
Automatic Delay Compensation:
Static Delay:
Delay Tracking:
Maximum Delay Compensation Online Version:
Automatic Delay Compensation:
Static Delay:
Delay Tracking:
Available Measurement Results:
•
Timesignal
•
Spectrum
•
Excitation
•
Noise-to-Mask Ratio (NMR), averaged
•
Noise-to-Mask Ratio (NMR) vs. Time
•
Masked Threshold
•
Loudness
•
Objective Difference Grade (ODG), averaged (Advanced and Basic Version)
•
Objective Difference Grade (ODG) vs. Time
•
Distortion Index (DI), for the Advanced and the Basic Version
•
Delay between the Reference Signal and the output signal of the device under test
•
Attenuation of the test signal compared to the reference signal
•
Modulation of the reference and test signal
Available BS.1387 intermediate results (MOVs):
•
Average Bandwidth of the Reference Signal (AvgBwRef)
•
Average Bandwidth of the output signal of the device under test (AvgBwTst)
•
Total Noise-to-Mask Ratio (NMRtotB)
S P E C I F I C A T I O N S
Based on standard ITU-R BS.1387, Basic model
48 kHz (according to recommendation ITU-R BS.1387)
In addition to BS.1387, the current OPERA™
implementation also supports 44.1 kHz
±
1000 ms
Additional
±
512 samples
±
500 ms
Additional
±
512 samples
178
±
10 s
±
10 s