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Function
Ref. Model
I/O Data
SubAIMs
JSON MData
Profiles
Ref. Software
Conformance
Performance
1 Functions
The Generative Speech Description (MMC-GSD) AIM produces the Machine Speech Descriptors from the Text and, optionally, from a Speech Personal Status that gives the speech its expression. The Descriptors drive the synthesis of the Machine Speech. When the Speech Personal Status is absent the speech is neutral.
| Receives | Speech Personal Status | The Personal Status for the expression of the speech. |
| Text Object | The Text to be spoken. | |
| Produces | Machine Speech Descriptors | The Descriptors that drive the synthesis of the Machine Speech. |
2 Reference Model
Figure 1 depicts the Reference Model of the Generative Speech Description (MMC-GSD) AIM.

Figure 1 – Reference Model of the Generative Speech Description (MMC-GSD) AIM
3 I/O Data
Table 1 specifies the Input and Output Data of the Generative Speech Description (MMC-GSD) AIM. Links are to the Data Type specifications.
| Input | Data Type | Description |
|---|---|---|
| Speech Personal Status | Speech Personal Status (optional) | The Personal Status for the expression of the speech. |
| Text Object | Basic Text Object or Text Object | The Text to be spoken. |
| Output | Data Type | Description |
| Machine Speech Descriptors | Speech Descriptors Object | The Descriptors that drive the synthesis of the Machine Speech. |
4 SubAIMs
No SubAIMs.
5 JSON Metadata
https://schemas.mpai.community/MMC/V2.5/AIMs/GenerativeSpeechDescription.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-GSD 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.
| Receives | Speech Personal Status (Speech Personal Status) | Shall validate against the Speech Personal Status schema. |
| Text Object (Basic Text Object or Text Object) | Shall validate against the Basic Text Object or Text Object schema. | |
| Produces | Machine Speech Descriptors (Speech Descriptors Object) | Shall validate against the Speech Descriptors Object schema. |
9 Performance Assessment
Not part of this specification.