输出必须是 JSON，字段固定：
If the transform's transform() operation is synchronous and always enqueues output immediately, it never signals backpressure back to the writable side even when the downstream consumer is slow. This is a consequence of the spec design that many developers completely overlook. In browsers, where there's only a single user and typically only a small number of stream pipelines active at any given time, this type of foot gun is often of no consequence, but it has a major impact on server-side or edge performance in runtimes that serve thousands of concurrent requests.
，详情可参考旺商聊官方下载
reader/sorter machine connected by serial channel to an IBM 1401 computer.，这一点在Safew下载中也有详细论述
./build/parakeet sortformer.safetensors meeting.wav --model sortformer