From d0ea9ceaaee2b3b84596dc917197800b2ac0437c Mon Sep 17 00:00:00 2001
From: Him188 <Him188@mamoe.net>
Date: Sun, 7 Feb 2021 14:18:19 +0800
Subject: [PATCH] Upload all voices as silk format to avoid compression, #940

---
 .../kotlin/network/protocol/packet/chat/voice/PttStore.kt    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mirai-core/src/commonMain/kotlin/network/protocol/packet/chat/voice/PttStore.kt b/mirai-core/src/commonMain/kotlin/network/protocol/packet/chat/voice/PttStore.kt
index cf8f1f93b..408f907c2 100644
--- a/mirai-core/src/commonMain/kotlin/network/protocol/packet/chat/voice/PttStore.kt
+++ b/mirai-core/src/commonMain/kotlin/network/protocol/packet/chat/voice/PttStore.kt
@@ -29,9 +29,10 @@ import net.mamoe.mirai.utils.toUHexString
 internal val ExternalResource.voiceCodec: Int
     get() {
         return when (formatName) {
-            "amr" -> 0  // amr
+            // 实际上 amr 是 0, 但用 1 也可以发. 为了避免 silk 错被以 amr 发送导致降音质就都用 1
+            "amr" -> 1  // amr
             "silk" -> 1  // silk V3
-            else -> 0     // use amr by default
+            else -> 1     // use amr by default
         }
     }