gaochangfeng
2024-04-11 fce4e1d1b48f23cd8332e60afce3df8d6209a6a7
SenseVoice对富文本解码的参数 (#1608)

* 修复无法预测nospeech标签的问题

* 修复prompt存储的设备的问题

* 添加增益事件的功能

* Debug测试通过,可以有效地增加掌声地召回率

* 增加情感阈值

* fix

* fix bug

---------

Co-authored-by: 常材 <gaochangfeng.gcf@alibaba-inc.com>
Co-authored-by: zhifu gao <zhifu.gzf@alibaba-inc.com>
1个文件已修改
66 ■■■■■ 已修改文件
funasr/models/sense_voice/whisper_lib/decoding.py 66 ●●●●● 补丁 | 查看 | 原始文档 | blame | 历史
funasr/models/sense_voice/whisper_lib/decoding.py
@@ -118,6 +118,16 @@
    suppress_tokens: Optional[Union[str, Iterable[int]]] = "-1"
    suppress_blank: bool = True  # this will suppress blank outputs
    gain_event: bool = False  # this will suppress blank outputs
    gain_tokens_bg: Optional[Union[str, List[int]]] = "<|Applause|><|Laughter|>"
    gain_tokens_ed: Optional[Union[str, List[int]]] = "<|/Applause|><|/Laughter|>"
    gain_tokens_score: List[float] = field(default_factory=lambda: [25.0, 5.0]) #[25, 5]
    use_emo_threshold: bool = False  # this will suppress blank outputs
    emo_unk_token: Optional[Union[str, List[int]]] = "<|SPECIAL_TOKEN_1|>"
    emo_target_tokens: Optional[Union[str, List[int]]] = "<|HAPPY|><|SAD|><|ANGRY|>"
    emo_target_threshold: List[float] = field(default_factory=lambda: [0.1, 0.1, 0.1]) #[25, 5]
    # timestamp sampling options
    without_timestamps: bool = False  # use <|notimestamps|> to sample text tokens only
    max_initial_timestamp: Optional[float] = 1.0
@@ -453,6 +463,48 @@
    def apply(self, logits: Tensor, tokens: Tensor):
        logits[:, self.suppress_tokens] = -np.inf
class GainEventToken(LogitFilter):
    def __init__(self, bg_tokens: Sequence[int], ed_tokens:Sequence[int], gain_values: Sequence[float]):
        self.bg_tokens = list(bg_tokens)
        self.ed_tokens = list(ed_tokens)
        self.gain_value = [np.log(max(ga, 1e-9)) for ga in gain_values]
        assert len(self.ed_tokens) == len(self.gain_value)
        assert len(self.bg_tokens) == len(self.gain_value)
    def apply(self, logits: Tensor, tokens: Tensor):
        for i in range(len(tokens)):
            for bg, ed, ga in zip(self.bg_tokens, self.ed_tokens, self.gain_value):
                sum_bg = sum([1 if x == bg else 0 for x in tokens[i]])
                sum_ed = sum([1 if x == ed else 0 for x in tokens[i]])
                logits[i, bg] += ga
                if sum_bg > sum_ed or tokens[i,-1] in [bg, ed]:
                    logits[i, bg] = -np.inf
                if sum_bg <= sum_ed:
                    logits[i, ed] = -np.inf
class ThresholdEmoToken(LogitFilter):
    def __init__(self, unk_tokens: Sequence[int], emo_tokens:Sequence[int], th_values: Sequence[float]):
        self.unk_token = list(unk_tokens)[0]
        self.emo_tokens = list(emo_tokens)
        self.th_values = list(th_values)
        assert len(self.emo_tokens) == len(self.th_values)
    def apply(self, logits: Tensor, tokens: Tensor):
        for i in range(len(tokens)):
            for emo, th in zip(self.emo_tokens, self.th_values):
                if logits[i].argmax() == emo and logits[i].softmax(dim=-1)[emo] < th:
                    logits[i, self.unk_token] =  max(logits[i, emo], logits[i, self.unk_token])
                    logits[i, emo] = -np.inf
            # for bg, ed, ga in zip(self.bg_tokens, self.ed_tokens, self.gain_value):
            #     sum_bg = sum([1 if x == bg else 0 for x in tokens[i]])
            #     sum_ed = sum([1 if x == ed else 0 for x in tokens[i]])
            #     logits[i, bg] += ga
            #     if sum_bg > sum_ed or tokens[i,-1] in [bg, ed]:
            #         logits[i, bg] = -np.inf
            #     if sum_bg <= sum_ed:
            #         logits[i, ed] = -np.inf
class ApplyTimestampRules(LogitFilter):
    def __init__(
@@ -573,6 +625,20 @@
            self.logit_filters.append(SuppressBlank(self.tokenizer, self.sample_begin))
        if self.options.suppress_tokens:
            self.logit_filters.append(SuppressTokens(self._get_suppress_tokens()))
        if self.options.gain_event:
            self.logit_filters.append(GainEventToken(
                self.tokenizer.encode(self.options.gain_tokens_bg, allowed_special="all"),
                self.tokenizer.encode(self.options.gain_tokens_ed, allowed_special="all"),
                self.options.gain_tokens_score
                )
            )
        if self.options.use_emo_threshold:
            self.logit_filters.append(ThresholdEmoToken(
                self.tokenizer.encode(self.options.emo_unk_token, allowed_special="all"),
                self.tokenizer.encode(self.options.emo_target_tokens, allowed_special="all"),
                self.options.emo_target_threshold
                )
            )
        if not options.without_timestamps:
            precision = CHUNK_LENGTH / model.dims.n_audio_ctx  # usually 0.02 seconds
            max_initial_timestamp_index = None