license: apache-2.0
base_model: OpenMOSS-Team/MOSS-SoundEffect
tags:
- mlx
- audio
- sound-effects
- text-to-audio
MOSS-SoundEffect — MLX selective 4-bit (Swift-compatible)
Selective 4-bit (affine, group size 64) MLX conversion of
OpenMOSS-Team/MOSS-SoundEffect,
a sound-effect / ambient generator on the MossTTSDelay architecture.
Selective quant: lm_heads and the input embeddings are kept dense
(full precision); only the transformer body is 4-bit. This matches the module
layout in mlx-audio-swift's
MossTTSModel, which defines those layers as plain (non-quantized) modules — a
fully-4-bit checkpoint fails to load there with a size mismatch. ~16 GB bf16 →
~5.4 GB.
Usage (Swift)
Requires the patched fork nullic/mlx-audio-swift
(branch trails): adds float32 audio-token sampling + quantized-checkpoint
loading to MossTTSModel. Pair with the original audio tokenizer
OpenMOSS-Team/MOSS-Audio-Tokenizer.
Sampling: audio temperature 1.7, top-p 0.8, top-k 25 (the upstream reference settings; the fork's float32 sampling is what makes 1.7 coherent rather than noise).
License
Apache-2.0, inherited from the base model. Conversion only; no weights authored here.