diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index b17b245de..9be489f06 100644
--- a/trunk/doc/CHANGELOG.md
+++ b/trunk/doc/CHANGELOG.md
@@ -7,6 +7,7 @@ The changelog for SRS.
 <a name="v7-changes"></a>
 
 ## SRS 7.0 Changelog
+* v7.0, 2025-10-29, AI: AAC: Fix mono audio reported as stereo in HTTP API. v7.0.112 (#3556)
 * v7.0, 2025-10-27, HLS/DASH: Fix dispose to skip unpublish when not enabled, and add forbidden directory protection to SrsPath::unlink. v7.0.111
 * v7.0, 2025-10-27, AI: HTTP-FLV: Enforce minimum 10ms sleep to prevent CPU busy-wait when mw_latency=0. v7.0.110 (#3963)
 * v7.0, 2025-10-26, AI: Edge: Fix stream names with dots being incorrectly truncated in source URL generation. v7.0.109 (#4011)
diff --git a/trunk/research/players/js/srs.sdk.js b/trunk/research/players/js/srs.sdk.js
index 34673c948..32fc69de9 100644
--- a/trunk/research/players/js/srs.sdk.js
+++ b/trunk/research/players/js/srs.sdk.js
@@ -24,7 +24,9 @@ function SrsRtcWhipWhepAsync() {
     self.constraints = {
         audio: true,
         video: {
-            width: {ideal: 320, max: 576}
+            width: {ideal: 320, max: 720},
+            //width: {ideal: 720, max: 1080},
+            //width: 1280, height: 720, frameRate: 30,
         }
     };
 
diff --git a/trunk/src/app/srs_app_rtmp_source.cpp b/trunk/src/app/srs_app_rtmp_source.cpp
index d6da4a162..96cd411e5 100644
--- a/trunk/src/app/srs_app_rtmp_source.cpp
+++ b/trunk/src/app/srs_app_rtmp_source.cpp
@@ -1008,7 +1008,17 @@ srs_error_t SrsOriginHub::on_audio(SrsMediaPacket *shared_audio)
             sample_rate = srs_audio_sample_rate_from_number(srs_aac_srates[c->aac_sample_rate_]);
         }
 
-        if ((err = stat_->on_audio_info(req_, format->acodec_->id_, sample_rate, c->sound_type_, c->aac_object_)) != srs_success) {
+        // For AAC, use aac_channels_ from AudioSpecificConfig instead of sound_type_ from FLV tag.
+        // The FLV sound_type field is often incorrect for AAC streams (e.g., FFmpeg sets it to stereo
+        // even for mono streams). The AAC AudioSpecificConfig channelConfiguration is the authoritative
+        // source: 1=mono, 2=stereo. Map to SrsAudioChannels: 0=mono, 1=stereo.
+        // For MP3 and other codecs, use sound_type_ from FLV tag.
+        SrsAudioChannels channels = c->sound_type_;
+        if (format->acodec_->id_ == SrsAudioCodecIdAAC) {
+            channels = (c->aac_channels_ == 1) ? SrsAudioChannelsMono : SrsAudioChannelsStereo;
+        }
+
+        if ((err = stat_->on_audio_info(req_, format->acodec_->id_, sample_rate, channels, c->aac_object_)) != srs_success) {
             return srs_error_wrap(err, "stat audio");
         }
 
diff --git a/trunk/src/core/srs_core_version7.hpp b/trunk/src/core/srs_core_version7.hpp
index 66d4422ac..f1801d3be 100644
--- a/trunk/src/core/srs_core_version7.hpp
+++ b/trunk/src/core/srs_core_version7.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR 7
 #define VERSION_MINOR 0
-#define VERSION_REVISION 111
+#define VERSION_REVISION 112
 
 #endif
\ No newline at end of file