libvpb
4.2.61
|
Functions | |
int WINAPI | vpb_loopback_on (int handle) |
Turns on software loop-back of tx->rx in the kernel. More... | |
int WINAPI | vpb_loopback_off (int handle) |
Turns off software loop-back of tx->rx in the kernel. More... | |
int WINAPI | vpb_hostecho_on (int handle) |
Enable the host echo canceller for handle. | |
int WINAPI | vpb_hostecho_off (int handle) |
Disable the host echo canceller for handle. | |
int WINAPI | vpb_echo_canc_force_adapt_on () |
int WINAPI | vpb_echo_canc_force_adapt_off () |
int WINAPI | vpb_echo_canc_enable () |
int WINAPI | vpb_echo_canc_disable () |
int WINAPI | vpb_echo_canc_get_sup_thresh (int handle, short *thresh) |
Get the current echo suppressor threshold. More... | |
int WINAPI | vpb_echo_canc_set_sup_thresh (int handle, short *thresh) |
Set the echo suppressor threshold. More... | |
int WINAPI vpb_echo_canc_get_sup_thresh | ( | int | handle, |
short * | thresh | ||
) |
Get the current echo suppressor threshold.
This threshold is the same for all channels on all cards.
handle | A handle to an open port on the card. |
thresh | The returned echo suppressor threshold value. |
V4PCI
cards. VpbException | will be thrown in the event of an error. |
int WINAPI vpb_echo_canc_set_sup_thresh | ( | int | handle, |
short * | thresh | ||
) |
Set the echo suppressor threshold.
This threshold is the same for all channels on all cards.
handle | A handle to an open port on the card. |
thresh | The echo suppressor threshold value. 0x1000 gives -18db , 0x800 gives -24db , 0x0 for no suppressor. |
V4PCI
cards. VpbException | will be thrown in the event of an error. |
int WINAPI vpb_loopback_off | ( | int | handle | ) |
Turns off software loop-back of tx->rx in the kernel.
Useful for echo testing.
handle | The handle of the port to disable loopback operations. |
VPB_OK
if all went well. various | exceptions may be thrown if all did not go well. |
int WINAPI vpb_loopback_on | ( | int | handle | ) |
Turns on software loop-back of tx->rx in the kernel.
Useful for echo testing.
handle | The handle of the port to enable loopback operations. |
VPB_OK
if all went well. various | exceptions may be thrown if all did not go well. |