diff --git a/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp b/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp
index 99db7ef6e3..8323b813c9 100644
--- a/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp
+++ b/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp
@@ -47,8 +47,49 @@ static_assert(sizeof(SystemOptions) == SystemOptionsSize);
 static_assert(offsetof(SystemOptions, frameSamples) == 32);
 static_assert(offsetof(SystemOptions, flags) == 44);
 
-struct SourceInfo;
-struct SystemInfo;
+struct SourceInfo {
+    AudioPropagationHandle system;
+    float position[3];
+    std::uint32_t reserved20;
+    float direction[3];
+    std::uint32_t reserved36;
+    std::uint32_t attribute2Mode;
+    float attribute2Values[3];
+    float attribute3Values[4];
+    std::uint32_t pathCapacity;
+    std::uint32_t parameter76;
+};
+
+struct SystemInfo {
+    void* cpuMemory;
+    std::size_t cpuMemorySize;
+    std::uint32_t index;
+    std::uint32_t frameSamples;
+    std::uint32_t parameter24;
+    std::uint32_t maxSources;
+    std::uint32_t maxMaterials;
+    std::uint32_t pathCapacityPerSource;
+    float propagationSpeed;
+    std::uint32_t reserved44;
+};
+
+static_assert(sizeof(SourceInfo) == 80);
+static_assert(offsetof(SourceInfo, position) == 8);
+static_assert(offsetof(SourceInfo, direction) == 24);
+static_assert(offsetof(SourceInfo, attribute2Mode) == 40);
+static_assert(offsetof(SourceInfo, attribute2Values) == 44);
+static_assert(offsetof(SourceInfo, attribute3Values) == 56);
+static_assert(offsetof(SourceInfo, pathCapacity) == 72);
+static_assert(offsetof(SourceInfo, parameter76) == 76);
+static_assert(sizeof(SystemInfo) == 48);
+static_assert(offsetof(SystemInfo, cpuMemorySize) == 8);
+static_assert(offsetof(SystemInfo, index) == 16);
+static_assert(offsetof(SystemInfo, frameSamples) == 20);
+static_assert(offsetof(SystemInfo, parameter24) == 24);
+static_assert(offsetof(SystemInfo, maxSources) == 28);
+static_assert(offsetof(SystemInfo, maxMaterials) == 32);
+static_assert(offsetof(SystemInfo, pathCapacityPerSource) == 36);
+static_assert(offsetof(SystemInfo, propagationSpeed) == 40);
 struct ReportRegistration;
 
 struct ReportArguments {
diff --git a/docs/dev/debt/libSceAudioPropagation.md b/docs/dev/debt/libSceAudioPropagation.md
index 501b37adab..cff417667f 100644
--- a/docs/dev/debt/libSceAudioPropagation.md
+++ b/docs/dev/debt/libSceAudioPropagation.md
@@ -7,5 +7,5 @@
 ### Unknown function info
 
 - [sceAudioPropagationSourceSetAudioPath](../../../core/libs/prx/libSceAudioPropagation/Export.cpp): the native path lookup and update confirm a 64-bit path handle, a read-only 224-byte path description and a float gain in XMM0. The description contains four 48-byte points, a point count and flags; each point contains a descriptor, room handle, gain and three position floats. The last eight bytes of each point and of the description are not consumed by these paths and remain opaque. Protected implementation remains unchanged; allocation, ownership and rendering are not implemented.
-- [libSceAudioPropagation](../../../core/libs/prx/libSceAudioPropagation/Export.cpp): system options use a recovered 56-byte record; the field at byte 24 and final eight bytes remain semantically unresolved. CPU memory requirements and option limits are recovered; GPU memory queries throw because their platform-specific runtime condition is unresolved. Descriptor validation, ray ownership and path generation are unimplemented. Native rendering accepts multiple mutable records; the host supports only format 2 and writes one silent frame without native accumulation. Frame capacity and source-count limits follow the recovered options. Other formats and native validation precedence remain unimplemented. Source/system diagnostic fields still need reconstruction.
-- [Initialization exports](../../../core/libs/prx/libSceAudioPropagation/Export.cpp) ending in `Init`, plus `sceAudioPropagationSystem`, are absent from the supplied native module and retain unresolved signatures. Query, locking, enumeration and report callback signatures are recovered; source/system diagnostic fields still need reconstruction.
+- [libSceAudioPropagation](../../../core/libs/prx/libSceAudioPropagation/Export.cpp): system options use a recovered 56-byte record; the field at byte 24 and final eight bytes remain semantically unresolved. CPU memory requirements and option limits are recovered; GPU memory queries throw because their platform-specific runtime condition is unresolved. Descriptor validation, ray ownership and path generation are unimplemented. Native rendering accepts multiple mutable records; the host supports only format 2 and writes one silent frame without native accumulation. Frame capacity and source-count limits follow the recovered options. Other formats and native validation precedence remain unimplemented.
+- [Initialization exports](../../../core/libs/prx/libSceAudioPropagation/Export.cpp) ending in `Init`, plus `sceAudioPropagationSystem`, are absent from the supplied native module and retain unresolved signatures. Query, locking, enumeration and report callback signatures are recovered; diagnostic layouts are recovered, but source attributes 2/3 and the constant-one fields still lack semantic names. The final system word and the fourth position/direction words have no confirmed semantics.