From 1be4e12ca0d528d091d2f6e4154c64f2f1d1d70c Mon Sep 17 00:00:00 2001
From: feitianbubu <feitianbubu@qq.com>
Date: Fri, 17 Oct 2025 20:32:00 +0800
Subject: [PATCH] feat: switch to official TTS only when baseUrl is Volcano's
 official URL

---
 relay/channel/volcengine/adaptor.go |  7 ++++-
 relay/channel/volcengine/tts.go     | 45 +++++++++++++++++++++++------
 2 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/relay/channel/volcengine/adaptor.go b/relay/channel/volcengine/adaptor.go
index 21abe1d0..ec0bf6e2 100644
--- a/relay/channel/volcengine/adaptor.go
+++ b/relay/channel/volcengine/adaptor.go
@@ -71,6 +71,7 @@ func (a *Adaptor) ConvertAudioRequest(c *gin.Context, info *relaycommon.RelayInf
 			ReqID:     generateRequestID(),
 			Text:      request.Input,
 			Operation: "query",
+			Model:     info.OriginModelName,
 		},
 	}
 
@@ -258,7 +259,11 @@ func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
 		case constant.RelayModeRerank:
 			return fmt.Sprintf("%s/api/v3/rerank", baseUrl), nil
 		case constant.RelayModeAudioSpeech:
-			return "https://openspeech.bytedance.com/api/v1/tts", nil
+			// 只有当 baseUrl 是火山默认的官方Url时才改为官方的的TTS接口，否则走透传的New接口
+			if baseUrl == channelconstant.ChannelBaseURLs[channelconstant.ChannelTypeVolcEngine] {
+				return "https://openspeech.bytedance.com/api/v1/tts", nil
+			}
+			return fmt.Sprintf("%s/v1/audio/speech", baseUrl), nil
 		default:
 		}
 	}
diff --git a/relay/channel/volcengine/tts.go b/relay/channel/volcengine/tts.go
index a61ad340..98ac0e03 100644
--- a/relay/channel/volcengine/tts.go
+++ b/relay/channel/volcengine/tts.go
@@ -33,17 +33,44 @@ type VolcengineTTSUser struct {
 }
 
 type VolcengineTTSAudio struct {
-	VoiceType     string  `json:"voice_type"`
-	Encoding      string  `json:"encoding"`
-	SpeedRatio    float64 `json:"speed_ratio"`
-	Rate          int     `json:"rate"`
-	LoudnessRatio float64 `json:"loudness_ratio,omitempty"`
+	VoiceType        string  `json:"voice_type"`
+	Encoding         string  `json:"encoding"`
+	SpeedRatio       float64 `json:"speed_ratio"`
+	Rate             int     `json:"rate"`
+	Bitrate          int     `json:"bitrate,omitempty"`
+	LoudnessRatio    float64 `json:"loudness_ratio,omitempty"`
+	EnableEmotion    bool    `json:"enable_emotion,omitempty"`
+	Emotion          string  `json:"emotion,omitempty"`
+	EmotionScale     float64 `json:"emotion_scale,omitempty"`
+	ExplicitLanguage string  `json:"explicit_language,omitempty"`
+	ContextLanguage  string  `json:"context_language,omitempty"`
 }
 
 type VolcengineTTSReqInfo struct {
-	ReqID     string `json:"reqid"`
-	Text      string `json:"text"`
-	Operation string `json:"operation"`
+	ReqID           string                   `json:"reqid"`
+	Text            string                   `json:"text"`
+	Operation       string                   `json:"operation"`
+	Model           string                   `json:"model,omitempty"`
+	TextType        string                   `json:"text_type,omitempty"`
+	SilenceDuration float64                  `json:"silence_duration,omitempty"`
+	WithTimestamp   interface{}              `json:"with_timestamp,omitempty"`
+	ExtraParam      *VolcengineTTSExtraParam `json:"extra_param,omitempty"`
+}
+
+type VolcengineTTSExtraParam struct {
+	DisableMarkdownFilter      bool                      `json:"disable_markdown_filter,omitempty"`
+	EnableLatexTn              bool                      `json:"enable_latex_tn,omitempty"`
+	MuteCutThreshold           string                    `json:"mute_cut_threshold,omitempty"`
+	MuteCutRemainMs            string                    `json:"mute_cut_remain_ms,omitempty"`
+	DisableEmojiFilter         bool                      `json:"disable_emoji_filter,omitempty"`
+	UnsupportedCharRatioThresh float64                   `json:"unsupported_char_ratio_thresh,omitempty"`
+	AigcWatermark              bool                      `json:"aigc_watermark,omitempty"`
+	CacheConfig                *VolcengineTTSCacheConfig `json:"cache_config,omitempty"`
+}
+
+type VolcengineTTSCacheConfig struct {
+	TextType int  `json:"text_type,omitempty"`
+	UseCache bool `json:"use_cache,omitempty"`
 }
 
 type VolcengineTTSResponse struct {
@@ -89,7 +116,7 @@ func mapVoiceType(openAIVoice string) string {
 	if voice, ok := openAIToVolcengineVoiceMap[openAIVoice]; ok {
 		return voice
 	}
-	return "zh_male_M392_conversation_wvae_bigtts"
+	return openAIVoice
 }
 
 func mapSpeedRatio(speed float64) float64 {