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Support adjusting interleaved token ratio in data processing #28

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Merged
haerski merged 1 commit into from
Jun 2, 2026
Merged

Support adjusting interleaved token ratio in data processing #28

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15 changes: 12 additions & 3 deletions src/liquid_audio/data/mapper.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,9 +13,18 @@
class LFM2AudioChatMapper:
"""Map a chat into an LFM2 training sample."""

def __init__(self, processor: LFM2AudioProcessor, *, codebooks: int = 8) -> None:
def __init__(
self,
processor: LFM2AudioProcessor,
*,
codebooks: int = 8,
interleaved_text_tokens: int = 6,
interleaved_audio_tokens: int = 12,
) -> None:
self.processor = processor
self.codebooks = codebooks
self.interleaved_text_tokens = interleaved_text_tokens
self.interleaved_audio_tokens = interleaved_audio_tokens

def __call__(self, messages: list[ChatMessage]) -> LFM2AudioTrainingSample:
text_parts: list[torch.Tensor] = []
Expand Down Expand Up @@ -136,8 +145,8 @@ def _append_interleaved_out(
audio_out = self._encode_audio_out(wav=wav, sampling_rate=sampling_rate)
audio_out_parts.append(audio_out)

n_text = 6
n_audio = 12
n_text = self.interleaved_text_tokens
n_audio = self.interleaved_audio_tokens
text_left = int(text_tokens.shape[0])
audio_left = int(audio_out.shape[1])
while text_left > 0 or audio_left > 0:
Expand Down
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