Ltx23 Accent American Audio LoRA
ltx-2-community-license
Model source
- Kind
- Model
- File size
- 168 MB
- Base model
- Lightricks/LTX-2.3
- Version
- vLtx23 accent american v2 rank32
- Updated
- Oct 13, 2026
- Source
- Hugging Face
Source description
LTX-2.3 American Accent LoRA — audio-branch, rank 32
Makes accent wording in your prompt actually work. LTX-2.3's voice prior ignores accent requests in exactly the regions where you need them most — young female characters default to Australian-leaning voices even when the prompt says "in a casual American accent". This LoRA turns that wording into a reliable control.
Read this first: the 24 fps rule
This LoRA cannot help you at the wrong frame rate. LTX-2.3's joint audio-video prior is 24 fps-native, and render fps is a hidden accent dial: at 25 fps the same prompt and seed render non-rhotic southern British, at 30 fps broad Australian — and off-24 fps overrides accent wording entirely, LoRA or no LoRA. Set your workflow's fps/frame_rate to 24, then use this LoRA. (Dose-response verified by A/B on identical configs, 2026-07-30.)
What it does — measured
A/B matrix on the hardest region (young pale-skinned woman, casual camcorder monologue), 24 fps, two seeds per cell, blind phonetic review:
| spoken-line wording | without LoRA | with LoRA @ 1.0 |
|---|---|---|
| no accent stated | Australian | Australian |
| "saying in a casual American accent" | Australian (both seeds) | General American (both seeds) |
| rich scaffold ("her voice is a low American voice with a slight rasp, speaking in a casual American accent") | Australian (both seeds) | General American |
The pattern: the LoRA does not force American unconditionally — it makes the model obey the accent you ask for in regions where the base model refuses. State the accent on every spoken line ("in a casual American accent"); the LoRA does the enforcing.
Lip-sync safe by construction
1,152 LoRA tensors, all of them in the audio branches — audio_attn1 (480),
audio_attn2 (480), audio_ff (192). Zero video tensors, zero cross-modal
(video_to_audio / audio_to_video) tensors. Video content, faces, and lip
motion are mathematically untouched.
Usage
- Strength 1.0 in any LTX-2.3 LoRA loader. Verified in long multishot production runs alongside a video-branch LoRA with no interference.
- Compatible with the LTX-2.3 22B family: stock distilled 1.1 and the JoyAI-Echo surgical merges (bf16 / fp8 / INT8 / GGUF via fuse-at-load).
- Render at 24 fps. Say the accent. That is the whole recipe.
Training
- ai-toolkit, rank 32 / alpha 32, 3,000 steps, lr 1e-4, batch 1, qfloat8.
- Data: American-English read speech from LibriSpeech (CC BY 4.0; V. Panayotov, G. Chen, D. Povey, S. Khudanpur), muxed over static video so only the audio lane carries signal. Captions are verbatim transcripts with the accent deliberately unnamed — the American prior trains as always-on behavior, not a trigger phrase.
- The audio-branch-only module scope is what keeps static training video harmless: the video branches never receive a gradient.
License
LoRA weights follow the LTX-2 Community License of the base model. Training audio: LibriSpeech, CC BY 4.0.
Sources
1 source
Sources
1 sourceVerified Oct 13
Model artifacts
1 artifact
Model artifacts
1 artifactltx23_accent_american_v2_rank32.safetensors
safetensors · 168 MB · SHA-256 1aec71f318ac…6ba7 · Hugging Face
DownloadSource excerpts
2 excerpts
Source excerpts
2 excerpts--- license: other license_name: ltx-2-community-license license_link: https://huggingface.co/Lightricks/LTX-2/blob/main/LICENSE.txt base_model: Lightricks/LTX-2.3 tags: - ltx-video - ltx-2.3 - lora - audio - text-to-video - accent - diffusion-single-file --- # LTX-2.3 American Accent LoRA — audio-branch, rank 32 Makes accent wording in your prompt **actually work**. LTX-2.3's voice prior ignores accent requests in exactly the regions where you need them most — young female characters default to Australian-leaning voices even when the prompt says "in a casual American accent". This LoRA turns that wording into a reliable control. ## Read this first: the 24 fps rule This LoRA cannot help you at the wrong frame rate. LTX-2.3's joint audio-video prior is 24 fps-native, and render fps is a hidden accent dial: at 25 fps the same prompt and seed render non-rhotic southern British, at 30 fps broad Australian — and off-24 fps **overrides accent wording entirely**, LoRA or no LoRA. Set your workflow's fps/frame_rate to **24**, then use this LoRA. (Dose-response verified by A/B on identical configs, 2026-07-30.) ## What it does — measured A/B matrix on the hardest region (young pale-skinned woman, casual camcorder monologue), 24 fps, two seeds per cell, blind phonetic review: | spoken-line wording | without LoRA | with LoRA @ 1.0 | |---|---|---| | no accent stated | Australian | Australian | | "saying in a casual American accent" | Australian (both seeds) | **General American (both seeds)** | | rich scaffold ("her voice is a low American voice with a slight rasp, speaking in a casual American accent") | Australian (both seeds) | **General American** | The pattern: the LoRA does not force American unconditionally — it makes the model **obey the accent you ask for** in regions where the base model refuses. State the accent on every spoken line ("in a casual American accent"); the LoRA does the enforcing. ## Lip-sync safe by construction 1,152 LoRA tensors, all of them in the audio branches — `audio_attn1` (480), `audio_attn2` (480), `audio_ff` (192). Zero video tensors, zero cross-modal (`video_to_audio` / `audio_to_video`) tensors. Video content, faces, and lip motion are mathematically untouched. ## Usage - Strength **1.0** in any LTX-2.3 LoRA loader. Verified in long multishot production runs alongside a video-branch...
Source context: 55 downloads · 2 likes · Pipeline text-to-video · Library diffusion-single-file · Repo joeygambino/ltx23-accent-american-audio-lora
