Audio Performance Verification Procedures
11. Move the cable t
o each of the remaining AES B I/O connectors and repeat
steps 9 and 10 for each AES B I/O connector.
12. Disconnect the test setup.
AES Audio Level Meter
Accuracy Over Frequency
This test measures AES level meter accuracy over the audio frequency range.
Typical Operation Check. This test checks for typical operation. Typical values
are not guaranteed characteristics and are listed in the test record as pass / fail.
1. Set the waveform monitor to the factory presets. (See page 60, Restore the
Factory Presets.)
2. If the audio tile is not selected, press the Display Select 4 button.
3. Set the digital audio generator as follows:
Control or S etting Value
Sample Frequency
48 kHz
Output Level –6 dB FS Audio Tone
Frequency 100 Hz
4. Select the AES A input:
a. Press and hold the AUDIO button, select Audio Input, and then select
AES A.
b. Press the AUDIO button to close the menu.
5. Connect the digital audio generator unbalanced
(UNBAL) output to the AES
A 1-2 In connector using a 75 Ω cable.
6. Check for an indication of –6 dB FS 0.2 dB in the corresponding bars and
record Pass or Fail in the test record.
7. Move the audio generator output to each of the remaining AES A In
connectors and repeat step 6 for each conne ctor.
8. Set the digital audio generator as follows:
Control or S etting Value
Sample Frequency
48 kHz
Output Level –6 dB FS Audio Tone
Frequency 1 kHz
9. Repeat steps 5 through 7.
10. Set the digital audio generator as follows:
Control or S etting Value
Sample Frequency
48 kHz
Waveform Monitors Specifications and P erformance Verification 125