Model overview
ONNX export of **Beat This!**, the JKU beat/downbeat tracker (checkpoint `final0`), packaged for the [`musetric`][musetric] `packages/ai` runtime on `onnxruntime-web`'s **WebGPU** execution provider. Feature extraction is the host's job, and `mel-filterbank.bin` is what it needs to do it: the host computes the log-mel spectrogram on the GPU (STFT + this filterbank + `log1p`) and feeds windows straight into the graph as GPU buffers, never round-tripping features through the CPU. **Feed one 1500-frame window per call** — the author's window, 30 s of audio. Longer tracks are covered by overlapping windows in the host (`chunkSize` 1500, `borderSize` 6). Batching every window into a single call materializes a huge time-attention tensor; one window per call is why the graph takes a window axis at all. Short clips must be padded to 1500 frames.
Key features
特点摘要待依据来源补齐，不凭模型名称推断能力。
Limitations & considerations
Sources are insufficient to establish specific limitations. Verify task performance, latency, data policies, licensing and version lifecycle.
Source prices & cost analysis
Prices vary by channel, region and configuration. Channel quotes are listed independently and are not treated as a single official provider price.
| Source / channel | Input | Output | Billing unit | Collected at |
|---|---|---|---|---|
| No verified prices yet. Check the source channel. | ||||
Estimate monthly base token costs
Estimates exclude cache discounts, tiered pricing, multimodal surcharges, web search, taxes and additional reasoning output.
Public benchmarks & run configuration
暂无已采集的可核验公开评分。模型未上榜不代表能力较低。
View full indexed rankings →Frequently asked questions
Do open weights permit free commercial use?
Not necessarily. Check the version license, commercial conditions and usage policies. Self-hosting incurs compute and maintenance costs.
Are these real-time billing prices?
These are timestamped source snapshots, not live billing prices. Check the channel for current versions, regions, discounts and billing methods.
Sources & traceability
许可证：mit。模型介绍与第三方评测均以原来源的具体版本和方法为准。