AND9097/D
http://onsemi.com
3
All of the wireless parameters (see Figure 3) on the
settings tab are grouped in the lower right part of the screen.
Figure 3. IDS Settings Tab Wireless Parameters
The following parameters can be configured on the IDS
settings tab.
•
DeviceID:
Device Identification (left/right). This
control identifies the hearing aid as a left or a right
device. This is important as a hearing aid or relay
device uses this information to determine which hearing
aids are present. One hearing aid in a binaural system
must be programmed as left and the other hearing aid in
the system must be programmed as right.
•
MSSynch:
Memory Select Synchronization
(enabled/disabled). When enabled, it will allow a
hearing aid to send MS position information to the
other hearing aid. If this parameter is enabled, the
hearing aid will respond by changing its local MS
position (A, B, C, D, E, F) and then transmitting its
own MS position to the other hearing aid.
To configure both hearing aids in the system to transmit
their MS position to the far ear, both hearing aids must
have MSSynch set to enabled. If MSSynch is disabled,
when a MS is initiated, it will only change the memory
position on the local hearing aid; it will not transmit its
MS position to the far ear.
•
VCSynch:
Volume Control (VC) Synchronization
(enabled/disabled). When enabled, it will allow a
hearing aid to send VC level information. If this
parameter is enabled, the hearing aid will respond by
changing its local volume and then transmitting its own
VC level to the other hearing aid every time the VC is
changed.
•
InterAuralDelay
: Interaural Audio Delay Adjustment
(0 to 1 mS). The actual values available depend on the
sampling frequency used by the hearing aid. This
parameter adjusts the amount of delay that is introduced
between the audio in the transmitting ear and the audio
in the receiving ear. A small adjustment in this delay
may be required to create a balanced sound in a
binaural system.
For a sampling frequency of 16 kHz, a value of 0 to 16
is available, corresponding to a range of 0 to 1 ms in
0.625 mS increments.
For a sampling frequency of 32 kHz, a value of 0 to 32
is available, corresponding to a range of 0 to 1 ms in
0.313 mS increments.
•
TxLevel:
NFMI Transmitter Signal Level Adjustment
(4.86 V to 12.76 V). This control allows for the
adjustment of the transmitted power of the NFMI
transmitter.
Ayre SA3291 is pre
−
configured for optimum
transmission power at the default value, however some
increase or decrease in Tx power may be desired in certain
situations. Increasing the Tx power will increase the
wireless operating range but will also cause an increase in
power consumption which will shorten the battery life of
the hearing aid.
•
VendorID:
Vendor Identification Number (0 to 255).
This is a unique manufacturer’s identification number
that is assigned by ON Semiconductor to each
customer. This ID ensures that hearing aids from
different manufacturers do not interfere with each other
when in close proximity.
The VendorID available for configuration in a remote
control is equivalent to the Manufacturer’s ID that is used
to uniquely identify a manufacturer’s hearing aid. The
Manufacturer ID that has been assigned by
ON Semiconductor for your hearing aids can also be used
as your Vendor ID for the remote control, if desired.
•
NetworkID:
Network Identification Number (valid
entry: 0 to 65536). This ID number corresponds to the
serial number of an optional remote control, and is used
to assist with the identification between a remote
control and the hearing aids.
If a remote control device is not available at the time of
programming, a value of ‘1’ should be entered in this
field.
There is a special value that can be programmed into
this location to allow the remote control to be able to
communicate with the hearing aid. Entering a value of
‘65536’ will allow the hearing aid to always be able to
receive commands from any remote control that has been
programmed with the same Vendor ID.
•
LowPowerDelay:
Timeout value for no wireless audio.
This value determines how long the receiver will wait
for wireless audio to resume before going into a low
power mode.
This time out can be a value between 5 seconds and
65 seconds, with a 5 second step size.
