From 1455e4bf80f25ac97d36b0bae5ca532dad890d1b Mon Sep 17 00:00:00 2001
From: "3371392206@qq.com" <3371392206@qq.com>
Date: Sat, 15 Aug 2026 17:55:13 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=20synthesis.go=20?=
 =?UTF-8?q?=E7=B1=BB=E5=9E=8B=E4=B8=8D=E5=8C=B9=E9=85=8D=E7=BC=96=E8=AF=91?=
 =?UTF-8?q?=E9=94=99=E8=AF=AF=20([]byte=E2=86=92string)?=
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---
 adapter/volcano/synthesis.go | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/adapter/volcano/synthesis.go b/adapter/volcano/synthesis.go
index 0e900ea..6093e97 100644
--- a/adapter/volcano/synthesis.go
+++ b/adapter/volcano/synthesis.go
@@ -29,6 +29,15 @@ func (nopMetrics) UpstreamFinished(string, string, string, string, time.Duration
 func (nopMetrics) UpstreamUsage(string, int) {}
 
 // Synthesis 调用火山 v3 一次,返回组装好的结果。
+//
+// 入参:
+//   - ctx:超时控制
+//   - client:复用的 HTTPClient
+//   - opts:从 setting 构造的完整参数(text 字段会被 text 覆盖)
+//   - text:本次合成的实际文本
+//   - clientFormat:客户端期望的最终格式,"wav" 内部转 pcm 后本地拼 wav 头
+//   - speed:OpenAI 风格的 speed(倍率,0.5~2.0)
+//   - mtr:可选埋点;传 nil 等价于 nopMetrics
 func Synthesis(
 	ctx context.Context,
 	client *HTTPClient,
@@ -142,13 +151,13 @@ func newRequestID() string {
 
 // extractAdditionsForLog 从已编码的请求体里取 additions 字段值,便于日志展示。
 func extractAdditionsForLog(body []byte) string {
-	const key = `"additions":"`
+	const key = "\"additions\":\""
 	idx := bytesIndex(body, key)
 	if idx < 0 {
 		return ""
 	}
 	rest := body[idx+len(key):]
-	end := bytesIndex(rest, []byte{'"'})
+	end := bytesIndex(rest, "\"")
 	if end < 0 {
 		return ""
 	}