diff --git a/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp b/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp
index 31904b0c5..602d531cf 100644
--- a/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp
+++ b/core/libs/prx/libSceAudioPropagation/AudioPropagation.hpp
@@ -81,6 +81,7 @@ std::int32_t APS5_VABI sceAudioPropagationSourceGetAudioPath(AudioPropagationHan
 std::int32_t APS5_VABI sceAudioPropagationSourceGetRays(AudioPropagationHandle source, void* rays, std::uint32_t* count);
 std::int32_t APS5_VABI sceAudioPropagationSourceCalculateAudioPaths(AudioPropagationHandle source, const void* rays, std::uint32_t rayCount, std::uint32_t flags, void* paths, std::uint32_t pathCount);
 std::int32_t APS5_VABI sceAudioPropagationSourceSetAudioPaths(AudioPropagationHandle source, const void* entries, std::uint32_t count);
+std::int32_t APS5_VABI sceAudioPropagationSourceSetAudioPath(AudioPropagationHandle path, const void* data, float gain);
 std::int32_t APS5_VABI sceAudioPropagationSourceRender(AudioPropagationHandle system, const AudioPropagation::RenderInfo* infos, std::uint32_t count);
 
 }
diff --git a/core/libs/prx/libSceAudioPropagation/Export.cpp b/core/libs/prx/libSceAudioPropagation/Export.cpp
index 59e0a7b18..c3cdff194 100644
--- a/core/libs/prx/libSceAudioPropagation/Export.cpp
+++ b/core/libs/prx/libSceAudioPropagation/Export.cpp
@@ -291,6 +291,14 @@ std::int32_t APS5_VABI sceAudioPropagationSourceSetAudioPaths(AudioPropagationHa
     return 0;
 }
 
+std::int32_t APS5_VABI sceAudioPropagationSourceSetAudioPath(AudioPropagationHandle path, const void* data, float gain) {
+    static_cast<void>(path);
+    static_cast<void>(data);
+    static_cast<void>(gain);
+    NotImplemented_nid_no_patch(__func__);
+    return 0;
+}
+
 std::int32_t APS5_VABI sceAudioPropagationSourceRender(AudioPropagationHandle system, const RenderInfo* infos, std::uint32_t count) {
     require(infos != nullptr && count != 0, __func__);
     auto& state = registry();
diff --git a/docs/dev/TechnicalDebt.md b/docs/dev/TechnicalDebt.md
index 29cfa2b3a..037cdf3f1 100644
--- a/docs/dev/TechnicalDebt.md
+++ b/docs/dev/TechnicalDebt.md
@@ -42,6 +42,7 @@ Throughout the project, every function at every stage either **does exactly what
 
 - [getuid, geteuid, getgid, getegid and issetugid](../../core/libs/prx/libkernel/System/src/Process.cpp) (libkernel) report the root identity (0) and a process that never changed credentials (`issetugid` 0), as a jailbroken process has; the host user and group are not exposed to the guest. The values a title sees on a console are unverified
 - [Packed pixel ancillary word](../../core/shader/recompiler/Optimization/src/ConstantFolder.cpp) (shader recompiler) - the sample index at bits 8-11 and the render target index at bits 16-28 follow #295, and their equality with the SampleId and Layer builtins is inferred, not measured. A value passed through a select or move is rebuilt from those two fields with bits 0-7, 12-15 and 29-31 zero. That is exact only because every read of the word must be an extract inside one modelled field; any other read throws. The other bits are unmodelled and their RDNA 2 layout is unknown: the RDNA 3.5 ISA is reported to give prim type at bits 0-1, VRS rates at bits 2-5 and eye id at bit 7, which was not checked against RDNA 2
+- [sceAudioPropagationSourceSetAudioPath](../../core/libs/prx/libSceAudioPropagation/Export.cpp) (libSceAudioPropagation, NID `tKSmk2JsMAA`) - `(uint64_t path, const void* data, float gain)` follows [SharpProspero](https://github.com/SvenGDK/SharpProspero/blob/5dfdb4b0b166e83dc9ae275001afb695f12c7174/src/SharpProspero/Interop/Audio/AudioPropagation.cs) and SAROS's call, which passes a handle from `sceAudioPropagationSourceGetAudioPath`, path data and gain 1.0. Path updates are unsupported and every call throws without reading or writing caller memory. The no-propagation model yields no path handles; path allocation, ownership, rendering and console error codes remain unknown.
 - [sceNpEntitlementAccessGetEntitlementKey](../../core/libs/prx/libSceNpEntitlementAccess/Export.cpp) - the three-argument signature, 16-byte key and errors `0x817D0002`/`0x817D0007` follow [KytyPS5](https://github.com/KytyPS5/KytyPS5/blob/main/src/libs/libNet.cpp); PPSA01521 passes a service label, entitlement label and output pointer. Only the no-key path is implemented: local entitlement labels carry no keys, and the output is untouched on failure. Console error precedence and key provisioning are unverified
 - [sceNpEntitlementAccess{Request,Poll}{Unified,Service}EntitlementInfoList](../../core/libs/prx/libSceNpEntitlementAccess/Export.cpp) - signatures unknown; no reference implements them, so they are declared without parameters. Like the consume requests in the same library, they report the signed-out NP state with `SCE_NP_ERROR_SIGNED_OUT` (`0x80550006`) and write nothing. PPSA15657 calls the unified request during start-up and continues past the error. Whether the console fails at the request or at the poll when signed out is unverified
 - [sceRudpGetStatus](../../core/libs/prx/libSceRudp/Export.cpp) - PPSA01521 passes an output pointer and byte count `0xF8`; the status layout and size rules are unknown, so the buffer is zeroed like `sceRudpGetContextStatus` (state 0 = idle, no connections) and the size is not validated. It returns `RUDP_ERROR_NOT_INITIALIZED` before initialization and 0 otherwise, as `sceRudpGetContextStatus` does. [shadPS4](https://github.com/shadps4-emu/shadPS4/blob/main/src/core/libraries/rudp/rudp.cpp) declares it without arguments and returns success without writing status