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Function
Ref. Model
I/O Data
SubAIMs
JSON MData
Profiles
Ref. Software
Conformance
Performance
1 Functions
The Entity Speech Description (MMC‑ESD) AIM receives an utterance (input speech) and produces the descriptors of the utterance:
| Receives | Speech Object | From an AIM or Entity. |
| Produces | Speech Descriptors | Of the input Speech Object. |
2 Reference Model
Figure 1 depicts the Reference Model of the Entity Speech Description (MMC‑ESD) AIM.

Figure 1 – The Entity Speech Description (MMC‑ESD) AIM
3 I/O Data
Table 1 specifies the Input and Output Data of the Entity Speech Description (MMC‑ESD) AIM.
Table 1 – I/O Data of the Entity Speech Description (MMC‑ESD) AIM
| Input | Description |
|---|---|
| Speech Object | Speech of Entity or AIM. |
| Output | Description |
| Speech Descriptors | Descriptors of Entity Speech. |
4 SubAIMs
No SubAIMs.
5 JSON Metadata
https://schemas.mpai.community/MMC/V2.5/AIMs/EntitySpeechDescription.json
6 Profiles
No Profiles.
7 Reference Software
Not part of this specification.
8 Conformance Testing
Table 2 provides the Conformance Testing Method for the MMC‑ESD AIM.
If a schema contains references to other schemas, conformance of data for the primary schema implies that any data referencing a secondary schema shall also validate against the relevant schema, if present, and conform with the Qualifier, if present.
Table 2 – Conformance Testing Method for the MMC‑ESD AIM
| Input | Speech Object | Shall validate against Speech Object schema. Speech Data shall conform with Speech Qualifier. |
| Output | Speech Descriptors | Shall validate against Speech Descriptors schema. |
9 Performance Assessment
Not part of this specification.