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Toyama et al.'s hierarchical frequency-time transformer for piano transcription (ISMIR 2023, sony/hFT-Transformer, MIT), converted to GGUF for the ggml runtime in Quantisation is free here, q40 included. That is not the usual result (cosine 0.870), and in this model velocity feeds the decoder's ignorezero gate rather than a note duration — so its errors change which notes survive, not how long they last. Contrast the Onsets & Frames GGUF, where q40 damages the frame head and costs 0.5 points of F1-with-offsets, because that head sets durations. 4.5 MiB reaching 70.7% on solo piano makes this the smallest model in this family that reaches that accuracy. Converted from the pruned ONNX export…

GGUF conversion of the speech-to-text subset of KRAFTON/Raon-Speech-9B for CrispASR (--backend raon-speech, or -m raon-speech to auto-download Q4K). The talker, code predictor, Mimi codec, output adaptor and speaker encoder serve speech output only, so they are not converted. CrispASR reproduces RaonPipeline.stt's front end: - the input is resampled 16k → 24k, as the processor does; - the audio is cut into 8 s chunks, each resampled 24k → 16k (a port of torchaudio's sinc resampler); - each chunk gets its own log-mel (per-chunk max) and is encoded on its own; - the 13 Hz encoder output is truncated to the 12.5 Hz frame grid. The prompt is "Transcribe the audio into text"; --ask "..."…

Conversion of IndexTeam/Index-Echo-S2TT-2B for the index-echo backend in CrispASR. Weights have passed the independent CPU/CUDA checks below. The backend is available on CrispASR main, including C ABI loading, companion downloads and a pinned nightly regression. The released model transcribes Chinese and translates each subtitle into English, Japanese or Spanish. CrispASR preserves the three-line generation recipe and returns bilingual cues with timestamps and punctuation. English JFK transcription/English translation also matches the released Python model in the CPU fixtures; this is a port-parity result, not a language-wide accuracy claim. The 9B checkpoint is not included. Both files of…