Add audio module: meeting minutes with Spring AI speech-to-text, structured output and text-to-speech

OpenAiAudioTranscriptionModel -> ChatClient.entity(Minutes.class) -> OpenAiAudioSpeechModel, WAV chunking at a silence under the 25 MB upload limit, SDK retry behaviour, the 4096-character speech limit and a cost model. Audio endpoints are a local mock and the chat model a stub; no real model was called. Spring Boot 4.1.2, Spring AI 2.0.2, Java 25. Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01CifR2BE7PBvRy5hT8TS9oz
2026-10-26 02:00:28 +00:00
parent ff58ff0189
commit 279be7eb9f
36 changed files with 1576 additions and 0 deletions
@@ -0,0 +1,58 @@
+# entity(Minutes.class) against a STUB ChatModel
+
+messages sent to the model:
+  [SYSTEM] 222 chars
+  [USER] 2799 chars
+
+tail of the USER message (the format instructions Spring AI appended):
+Your response should be in JSON format.
+Do not include any explanations, only provide a RFC8259 compliant JSON response following this format without deviation.
+Do not include markdown code blocks in your response.
+Remove the ```json markdown from the output.
+Here is the JSON Schema instance your output must adhere to:
+```{
+  "$schema" : "https://json-schema.org/draft/2020-12/schema",
+  "type" : "object",
+  "properties" : {
+    "actionItems" : {
+      "type" : "array",
+      "items" : {
+        "type" : "object",
+        "properties" : {
+          "due" : {
+            "type" : "string"
+          },
+          "owner" : {
+            "type" : "string"
+          },
+          "task" : {
+            "type" : "string"
+          }
+        },
+        "required" : [ "due", "owner", "task" ],
+        "additionalProperties" : false
+      }
+    },
+    "decisions" : {
+      "type" : "array",
+      "items" : {
+        "type" : "string"
+      }
+    },
+    "title" : {
+      "type" : "string"
+    }
+  },
+  "required" : [ "actionItems", "decisions", "title" ],
+  "additionalProperties" : false
+}```
+
+
+parsed: Falcon weekly sync
+  decisions   : 2
+  action item : Rahul  | Fix the login timeout bug | due: before the release on the fourteenth of November
+  action item : Priya  | Send the revised budget to finance | due: Friday
+  action item : Sana   | Open tickets for both export endpoint issues | due: today
+
+spoken form:
+  Falcon weekly sync. 2 decisions. Ship version 2.4 on the fourteenth of November. The data pipeline migrates to the new cluster next sprint. 3 action items. Rahul: Fix the login timeout bug, due before the release on the fourteenth of November. Priya: Send the revised budget to finance, due Friday. Sana: Open tickets for both export endpoint issues, due today.