Digigram ALP442e User Manual page 19

User Manual for ALP442e & ALP442e-MIC
All cards present must be listed in the "ACTIVE CARDS GROUP" selection list.
7.5 Adjusting the internal latency of the card
The following describes advanced settings that may impact the proper functioning of data exchanges
between the card and the PC. It is recommended that you do not change these settings.
The internal latency of the card is determined by the duration of sample buffers the card exchanges
with the PC for playback and recording audio streams. By default, this duration is 48 sampling clock
periods (1ms at
The lower the internal latency, the lower the global latency of the card. However, a very low latency
may lead to "choppy" audio on slow PCs. In this case it is necessary to increase the internal latency.
The internal latency of the card can be changed by electing the properties of the card, from the
Windows Device Manager:
Right click on the ALP card, and select Properties, Advanced. The following window is displayed:
Select the new latency value, and click on "Ok".
The PC must be restarted.
ALP882e & ALP882e-MIC
,
48 kHz, 6ms at
Internal buffer: number of sampling clock periods of
the buffers exchanged between the card and the
driver.
8kHz, or 0.25ms at 192kHz).
19