> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs-staging.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Asps Asr Usecase API

> This file contains ASR Usecase ID specific APIs.

**Header:** `spf/api/asps/asps_asr_usecase_api.h`

## Structures

### `asps_asr_usecase_register_payload_t`

ASR usecase(ASPS\_USECASE\_ID\_ASR) specific payload.

**Members**

<ParamField path="frame_length_ms" type="uint32_t">
  Frame length in milliseconds for ASR processing Range: 100..20000, Default: 3000.
</ParamField>

<ParamField path="language_code" type="uint32_t">
  Language code for ASR output Range: Language enum values, Default: ASPS\_ASR\_LANG\_EN\_US (0)
</ParamField>

<ParamField path="enable_sdz" type="uint32_t">
  Flag to enable Speaker Diarization along with ASR Range: 0..1, Default: 0.
</ParamField>

### `asps_asr_usecase_register_ack_payload_t`

ASR usecase (ASPS\_USECASE\_ID\_ASR) specific ACK Payload structure.

**Members**

<ParamField path="asr_module_instance_id" type="uint32_t">
  ASR Module instance ID which is configured with the ASR settings.
</ParamField>

<ParamField path="sdz_module_instance_id" type="uint32_t">
  SDZ Module instance ID (valid only if SDZ is enabled) Set to 0 if SDZ is not enabled.
</ParamField>

## Type Definitions

### `asps_asr_usecase_register_payload_t`

```cpp theme={null}
typedef struct asps_asr_usecase_register_payload_t asps_asr_usecase_register_payload_t
```

### `asps_asr_usecase_register_ack_payload_t`

```cpp theme={null}
typedef struct asps_asr_usecase_register_ack_payload_t asps_asr_usecase_register_ack_payload_t
```

## Macros

### `ASPS_USECASE_ID_ASR`

```c theme={null}
#define ASPS_USECASE_ID_ASR 0x0B001011
```