Quantum Data Gen 2 980 User Manual page 281

980 HDMI Protocol Analyzer User Guide
The following are some helpful tips on setting the Buffer Size and the Field Count:
Determine the number of fields (frames) you wish to playback. The number of frames that you playback will
primarily be determined by the audio that you are capturing. Your captured audio will play back without an
audible glitch if the Field Count is an integer multiple of the audio sampling rate. For example, if the LPCM
audio sampling rate is 48kHz, and you set the Field Count to 8, there would be no glitch because 48,000
divided by 8 is an integer (6000).
Set the Buffer Size to a value that will enable you to capture and save the number of fields (frames) that you
specified in the Field Count entry field. The recommended minimum Buffer Size settings necessary can be
determined from the following table.
Format
Resolution used
480p60
720p60
Page 281
LPCM Audio Sampling
Rate used
32kHz
48kHz
96kHz
32kHz
48kHz
Field Count settings
(number of frames to
save)
16
32
64
16
32
64
16
32
64
16
32
64
16
Rev. A1
Suggested Minimum
Buffer Size setting
3%
5%
10%
3%
5%
10%
3%
5%
10%
7%
10%
20%
7%
December 19, 2012