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mesolitica/
gemma3n-audio-encoder-VQ-65k-whisper-decoder

Name: gemma3n-audio-encoder-VQ-65k-whisper-decoder
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gemma3n-audio-encoder-VQ-65k-whisper-decoder

Combine mesolitica/gemma-3n-e4b-it-audio-encoder Encoder + Projection + VQ + Projection Layer Norm + openai/whisper-large-v3-turbo Decoder.

This model to introduce VQ on top mesolitica/gemma3n-audio-encoder-whisper-decoder

This is the most compressed speech token model, 6.25 TPS with 65536 embedding size.

WanDB at https://wandb.ai/huseinzol05/gemma3n-audio-vq-whisper-decoder-65k

Training dataset

how to audio token

python

from transformers import AutoFeatureExtractor, AutoModel, AutoTokenizer
import librosa

model_id = "mesolitica/gemma3n-audio-encoder-VQ-65k-whisper-decoder"
feature_extractor = AutoFeatureExtractor.from_pretrained(model_id)
model = AutoModel.from_pretrained(model_id, trust_remote_code = True, torch_dtype = 'auto').cuda()
encoder = model.model.get_encoder()
y, sr = librosa.load('218757.mp3', sr = feature_extractor.sampling_rate)
features = feature_extractor([y], return_tensors = 'pt')
features['input_features'] = features['input_features'].cuda()
features['input_features_mask'] = features['input_features_mask'].cuda()
_, tokens = encoder(**features)
print(tokens)

tensor([  910, 32677, 16546, 53781, 27314, 15398, 31002,  5847, 28410,  7585,
        53632, 47416, 38022,  6021, 48561, 20577, 29356, 16390,  6384,  7237,
        53567, 15756, 52487, 12716,   218, 27008, 25496, 27415, 14668, 41049,
        25329,  8556, 27467, 56087,  2976, 46430, 46014, 13764, 11178, 34157,
        11391, 46160, 46693, 14112, 23788,  2958, 15187, 37938, 60867, 20024,
        25597, 36378, 39933, 23820,  2392, 18068,  8010, 17651,  5731,  4433,
        40480, 30643, 55976, 46888, 60327, 53716, 30826, 26525, 11720,  7492,
        26675, 28757, 10368, 10900, 31609, 32883, 59085, 34244,   215, 43827,
         5471, 26865, 26593], device='cuda:0')

how to decode

python

from transformers import AutoFeatureExtractor, AutoModel, AutoTokenizer
import librosa

model_id = "mesolitica/gemma3n-audio-encoder-VQ-65k-whisper-decoder"
feature_extractor = AutoFeatureExtractor.from_pretrained(model_id)
model = AutoModel.from_pretrained(model_id, trust_remote_code = True, torch_dtype = 'auto').cuda()
tokenizer = AutoTokenizer.from_pretrained(model_id)

y, sr = librosa.load('common_voice_ba_26517811.mp3', sr = feature_extractor.sampling_rate)
input_ids = tokenizer(
    '<|startoftranscript|><|ru|><|transcribe|><|notimestamps|>', 
    add_special_tokens = False, return_tensors = 'pt')['input_ids']
features = feature_extractor([y], return_tensors = 'pt')
features['input_features'] = features['input_features'].cuda()
features['input_features_mask'] = features['input_features_mask'].cuda()
features['attention_mask'] = features['input_features_mask']
features['decoder_input_ids'] = input_ids.cuda()

generate_kwargs = dict(
    **features,
    max_new_tokens=1024,
)
generation_output = model.generate(**generate_kwargs)
tokenizer.decode(generation_output[0])

Output,

<|startoftranscript|><|ru|><|transcribe|><|notimestamps|> Купыкта был широкое глобка шляпше на битапсы.<|endoftext|>

Evaluation

Evaluate on malaysia-ai/common_voice_17_0/test, with some conditions,

Lower case.
Remove punctuation.
Provide language tagging for decoder input ids, <|startoftranscript|><|{lang}|><|transcribe|><|notimestamps|>.

Source code

Source code at https://github.com/mesolitica/malaya-speech/tree/master/session/gemma3n-audio-whisper-decoder