DLL Generation

• Go to OnSemi ARKOnline (http://ark.onsemi.com) and login. Visit “Library Manager” > “Libraries” (left column).
• Edit product library: Click “Edit” next to product library to modify, under the section “Audina Hearing Instruments Libraries”. Eg: ezRhythm
• Change appropriate settings, then click on “Build” button at the top. Wait a few minutes for the compilation to finish before downloading it.

DLL Installation

• Download DLLs from ARK Online. Click on the “Download” link beside the product library.
• Unzip the DLL download, and copy files to C:\Program Files\Common Files\Audina\Drivers (or alternatively to C:\WINDOWS\ARK).
• Run ARK Component Manager (Start → Programs → Sound Design Technologies (or Gennum) → Configuration Tools).
• Install the DLLs.

Integrating New Product to ezArkBase

• In ezConst.pas, create: library alias (eg: lbVenture = 'EzVENTURE';), and Product ID alias (eg: id_Venture = 50;).

Creating New Product Frontend

• Create a frame of a single screen with all the controls supported by that products. Suggested: create a frame from a currently available product, and modify it to meet the requirements of the new product. Eg: TfraSglVenture in frasVenture.pas. (fra = frame, Sgl = single, fras = single frame (for filename only))
• Create autofits for product in Autofit.pas.
• Create resourcestrings in resourcestr.inc.
• Create table structure in database ezfitdb.gdb to match all fields used in Gennum's Interactive Data Sheet (IDS).
• Create a form that contain Left and Right frames of the product screen. Eg: TfraVenture in fraVentures.pas (fra = frame)
• Modify product simulation screen, to add support for new product.

This is what you need to create a basic program using the ARK components. The program will allow you to:

1. Connect to a hearing instrument
2. Read and modify gain on the device
3. Read and display a stored audiogram and target curves

For example code see the attached project. link

Required Components

TEzARKBase TEzARKSource TChart TEzARKGraph TEzARKTrackBar TLabel

Properties required to be set

TEzARKBase

• Prescription
• ProgrammerName
• LibraryName (Device model)
• ProductName (Device style)

Note: ProgrammerName, LibraryName and ProductName may also be set at runtime by using a TEzARKLookup with the LookupType property set to its respective type.

TEzARKSource

• ARKBase

TChart

• View3D = FALSE
• BottomAxis.Minimum = 0.198
• BottomAxis.Maximum = 8.1
• BottomAxis.Increment = 0.1
• LeftAxis.Minimum = -10
• LeftAxis.Maximum = 70
• Legend.Visible = FALSE
• SeriesList (at least 3)
  • Response (TLineSeries)
  • Target (TLineSeries)
  • Labels (TFastLineSeries)
    • Data Source = Manual

TEzARKGraph

• ARKSource
• LabelSeries = Labels
• ChartSeries (at least 2)
  • Series 0
    • GraphType = gtInput
    • Series = Response
  • Series 1
    • GraphType = gtTarget
    • Series = Target
• ChartLabels

TEzARKTrackBar

• ARKSource
• ARKParam = WidebandGain
• ChangeDirection = TRUE
• Orientation = trVertical
• ValueLabel
• ShowUnit = TRUE
• Units = 'db'

Code Snippets

Create a 'Read' button to read the instrument’s memory and initialize your controls.

with Base do
begin
  Open(Application.Handle);
  WhichChip;
  Init;
  ReadAll;
 
  GetStoredAudiogram;
  SetAudiogram(StoredAudiogram);
  Refresh;
end;

Create a 'Write' button to write the new parameters to the instrument's permanent memory.

Base.Write;

You can use the form's OnClose event to disconnect from the instrument.

Base.Close;