ai.onnx.HammingWindow
ai.onnx · standard ONNX operator · ONNX opset ≥ 17
Description
Generates a Hamming window of a given length using the cosine-sum formula a0 - a1 * cos(2π * n / denom), where a0 ≈ 0.5435 and a1 ≈ 0.4565. The window can be periodic (for use in spectral analysis) or symmetric (for filter design).
See the ONNX HammingWindow spec for the reference semantics.
Inputs
| Name | Logical dtype | Rank | Shape | Description | Presence |
|---|---|---|---|---|---|
size |
T1 |
0 |
— | Scalar length of the window to generate. | required |
Outputs
| Name | Upstream name | Logical dtype | Rank | Shape | Description | Presence |
|---|---|---|---|---|---|---|
y |
output |
T2 |
1 |
— | 1-D Hamming window tensor of shape [size]. |
required |
Attributes
Default values (overridable per request):
| Attribute | Default | Description |
|---|---|---|
output_datatype |
1 |
Data type of the output tensor, specified as a TensorProto DataType enum value; default 1 (FLOAT). |
periodic |
1 |
When 1 (default), returns a periodic window of length size (suitable for spectral analysis); when 0, returns a symmetric window of length size. |
Type constraints
| Variable | Allowed dtypes |
|---|---|
T1 |
int32 |
T2 |
float32, float16, uint32, int32, uint8, int8, int16 |
Files
metadata.json— kernel metadata (id, digests, per-variant templates, provenance)manifest.json— the op contract (source of truth)test.json— correctness casesbench.json— benchmark + tuning caseswindow-cosine-sum.wgsl.jinja
Use with @huggingface/kernels
npm install --save-exact @huggingface/kernels@0.0.1-preview.2
Outputs with inferable metadata are allocated automatically. Explicit outputs entries request optional results or provide metadata that cannot be inferred from the supplied inputs and attributes.
This example supplies explicit metadata for:
y
The version: 1 option selects the published kernel contract; it is independent of any operator opset, contrib since_version, or model version.
It follows the v1 branch as fixes land. To pin exact artifact bytes, pass a 40-character commit revision instead of version.
Replace each *Data placeholder with a typed array containing the corresponding input data.
import { getKernel } from "@huggingface/kernels";
const kernel = await getKernel("webgpu-kernels/ai.onnx.HammingWindow", { version: 1 });
// Explicit destinations request optional results or supply metadata that cannot be inferred.
const { y } = await kernel({ size: { data: sizeData, shape: [] } }, {
outputs: { y: { shape: [1], dtype: "float32" } },
});
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Requires WebGPU support. See the compatibility table.