Qwen-Audio-3.x-ASR-Flash-Filetrans/Fun-ASR non-real-time speech recognition Android SDK

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Quick start

1. Get an API key: Obtain an API key. For better security, store the API key in an environment variable.
2. Download the SDK and run the sample code:
   • Download the latest SDK package.
   • Extract the ZIP package. Find the AAR-format SDK in the app/libs directory and add it to your project dependencies. For Android C++ integration, use android_libs and android_include in the ZIP package to get the dynamic libraries and header files.
   • Open the project in Android Studio. The sample code is in DashFunAsrFileTranscriberActivity.java. Replace the API key, then try out the feature.

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Call procedure

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Request parameters

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Connection and control parameters

• Parameter example: The following JSON string is an example and does not list every parameter. Add the parameters you need when you write your code:

{
    "url": "wss://dashscope.aliyuncs.com/api/v1/services/audio/asr/transcription",
    "apikey": "st-****",
    "device_id": "my_device_id",
    "service_mode": "1"
}

• Parameter description

  Parameter	Type	Required	Description
  url	String	Yes	Service endpoints: wss://dashscope.aliyuncs.com/api/v1/services/audio/asr/transcription China (Beijing): wss://{WorkspaceId}.cn-beijing.maas.aliyuncs.com/api/v1/services/audio/asr/transcription Singapore: wss://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1/services/audio/asr/transcription Replace {WorkspaceId} with your actual Workspace ID.
  apikey	String	Yes	The API key.
  service_mode	String	Yes	The run mode. Fixed to "1" for recorded speech recognition.
  device_id	String	Yes	A unique string that identifies the end user. Set it to an in-app user ID or a device identifier generated by the client. This ID is mainly used for log tracing and troubleshooting.
  debug_path	String	No	The storage path for the log file. This parameter takes effect only when save_log is set to true in the initialize interface. In that case, you must set the log file path, or an error is reported. At most two log files are kept locally.
  max_log_file_size	int	No	The maximum size of the log file, in bytes. This parameter takes effect only when save_log is set to true in the initialize interface. Default: 104857600 (100 * 1024 * 1024 bytes, that is, 100 MiB).
  log_track_level	int	No	The filter level for the log content sent through the log callback (onFileTransLogTrackCallback). Default: 2. Valid values: 0: LOG_LEVEL_VERBOSE 1: LOG_LEVEL_DEBUG 2: LOG_LEVEL_INFO 3: LOG_LEVEL_WARNING 4: LOG_LEVEL_ERROR 5: LOG_LEVEL_NONE (turns off this feature) Note: log_track_level and level (set through the initialize interface) together determine which logs are ultimately sent to the callback. A log is sent to the callback only when its level value is greater than or equal to both log_track_level and level. For example, if log_track_level is set to 2 (INFO) and level is set to 3 (WARNING), only logs at WARNING level or higher (value >= 3) are sent to the callback.

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Speech recognition parameters

• Parameter example: The following JSON string is an example and does not list every parameter. Add the parameters you need when you write your code:

{
    "apikey": "st-****",
    "file_urls": [
        "{YOUR_AUDIO_URL}"
    ],
    "async_request": false,
    "nls_config": {
        "model":"qwen-audio-3.0-asr-flash-filetrans",
        "diarization_enabled": false
    }
}

• Parameter description

  Parameter	Type	Required	Description
  file_urls	array[string]	Yes	A list of URLs of the audio or video files to transcribe. HTTP and HTTPS are supported. A single request supports only one URL. For input requirements such as supported audio formats, file size limits, and duration limits, see Audio specifications.If the recording is stored in Alibaba Cloud OSS, the RESTful API supports temporary URLs prefixed with oss://, whereas the SDK does not support oss://-prefixed temporary URLs. A temporary URL is valid for 48 hours and cannot be used after it expires. Do not use it in production. The upload credential interface is rate-limited to 100 QPS and cannot be scaled up. Do not use it in production, high-concurrency, or load-testing scenarios. For production, use stable storage such as Alibaba Cloud OSS to keep files available long-term and avoid rate limiting. If an audio file URL set to an OSS temporary public URL is unreachable, set X-DashScope-OssResourceResolve to enable in the request header (not recommended). The SDK does not support configuring request headers.
  async_request	boolean	No	Whether the recognition request is asynchronous.Default: false.Valid values: true: asynchronous request false: synchronous request
  apikey	string	No	If the apikey in Connection and control parameters is a temporary API key, you can update it here to avoid expiration.
  nls_config	object	Yes	The core configuration object for speech recognition. It contains key parameters such as model selection and recognition control.
  nls_config.model	string	Yes	The model used in the example. For model information, see Supported models and regions.
  nls_config.special_word_filter	object	No	The sensitive words to process during speech recognition. You can set a different handling method for each sensitive word. For details, see Sensitive word filtering.
  nls_config.channel_id	array[integer]	No	The index of the audio tracks to recognize in a multi-track audio file. The index starts at 0. For example, [0] recognizes the first track, and [0, 1] recognizes the first and second tracks at the same time. If you omit this parameter, only the first track is processed. Each specified track is billed independently. For example, requesting [0, 1] for a single file incurs two separate charges. Default value: [0].
  nls_config.diarization_enabled	boolean	No	Whether to enable speaker diarization. Disabled by default.Applies only to mono audio. Multi-channel audio does not support speaker diarization.When enabled, the recognition result includes a speaker_id field that distinguishes different speakers. When speaker diarization is enabled, keep the audio duration within 2 hours. Otherwise, recognition may fail or time out. Default: false.For an example of speaker_id, see Recognition result description.
  nls_config.speaker_count	integer	No	Takes effect only when speaker diarization is enabled (diarization_enabled is set to true). A reference value for the number of speakers. The valid range is an integer from 2 to 100 (inclusive).By default, the number of speakers is detected automatically. If you set this value, it only guides the algorithm to output the specified count when possible and does not guarantee that exact count.No default value.
  nls_config.vocabulary_id	string	No	The ID of a precompiled hot word list.Generate this ID in advance by calling the create hot word list API. Pass the ID during recognition to use the hot words in the list.Suitable for scenarios where the vocabulary is known and relatively stable, and where you need to reuse the same word list across requests.For usage details, see Precompiled hotwords.
  nls_config.input_context	array	No	A list of messages containing optional conversation context to improve recognition accuracy. Context helps improve recognition of domain-specific terms. For usage, see Context enhancement.You can include up to 5 messages of each context type: input_text and text. If this limit is exceeded, only the most recent 5 messages of each type are retained. The combined length of the text fields in the user and assistant messages in each turn must not exceed 400 characters. Each character counts as 1. Excess text is truncated from the end. When you include context, arrange messages by conversation turn. In each turn, the user message (input_text type) must precede the corresponding assistant message (text type). The user message containing input_audio must be the last message in the messages array. Copy [ { "role": "user", "content": [ { "type": "input_text", "text": "你好啊，我是通义千问，有什么可以帮助你的？" } ] } ]
  nls_config.instant_vocabulary	object	No	Instant hotwords, passed as key-value pairs. Each key is the hotword text (string), and each value is its weight (integer). No precompiled hotword list is required. Use this parameter for temporary, session-level hotwords.Valid weights are integers from 1 to 5, or 50. A higher weight from 1 to 5 makes the model more likely to output the hotword. A weight of 50 defines a super hotword and significantly improves recall. You can specify up to 50 super hotwords.If you also configure precompiled hotwords, the two sets are merged. If the merged set exceeds 2000 hotwords, 2000 are selected at random. For usage, see Instant hotwords. For models and limits that apply to instant hotwords, see Instant hotwords. Copy { "张三": 5, "李四": 5 }
  nls_config.language_hints	array[string]	No	The language codes to recognize. If you can't determine the language in advance, leave it unset and the model detects the language automatically.For Qwen-Audio-3.x-ASR-Flash-Filetrans models, you can set up to 4 values; any values beyond the first 4 are ignored. For Fun-ASR models, you can set only 1 value; if you set multiple, only the first takes effect. Click to view the supported language codes Qwen-Audio-3.x-ASR-Flash-Filetrans, fun-asr, fun-asr-2025-11-07, fun-asr-mtl, fun-asr-mtl-2025-08-25: zh: Chinese en: English ja: Japanese ko: Korean vi: Vietnamese th: Thai id: Indonesian ms: Malay tl: Filipino hi: Hindi ar: Arabic fr: French de: German es: Spanish pt: Portuguese ru: Russian it: Italian nl: Dutch sv: Swedish da: Danish fi: Finnish no: Norwegian el: Greek pl: Polish cs: Czech hu: Hungarian ro: Romanian bg: Bulgarian hr: Croatian sk: Slovak fun-asr-2025-08-25: zh: Chinese en: English

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Key interfaces

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NativeNui

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initialize

• Method signature

public synchronized int initialize(final INativeFileTransCallback callback,
                                   String parameters,
                                   final Constants.LogLevel level,
                                   final boolean save_log)

• Parameter description

  Parameter	Type	Description
  callback	INativeFileTransCallback	The implementation of the event and data callback interface.
  parameters	String	A JSON string that contains the authentication, connection, and debugging parameters. See Connection and control parameters.
  level	Constants.LogLevel	Controls the print level of the SDK's own logs.
  save_log	boolean	Whether to save logs locally. If true, specify the path with debug_path in Connection and control parameters, and optionally set the file size with max_log_file_size.

• Return value Returns an error code. See Error code reference.

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setParams

• Method signature

public synchronized int setParams(String params);

• Parameter description

  Parameter	Type	Description
  params	String	The nls_config parameter in Speech recognition parameters. Parameters other than nls_config cannot be set through this method.Example: Copy { "nls_config": { "model":"qwen-audio-3.0-asr-flash-filetrans", "diarization_enabled": false } }

• Return value Returns an error code. See Error code reference.

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startFileTranscriber

• Method signature

public synchronized int startFileTranscriber(String params, byte[] task_id)

• Parameter description

  Parameter	Type	Description
  params	String	Speech recognition parameters.Example: Copy { "file_urls": [ "{YOUR_AUDIO_URL}" ], "async_request": false, "nls_config": { "model":"qwen-audio-3.0-asr-flash-filetrans", "diarization_enabled": false } }
  task_id	byte[]	The task ID. The SDK generates a random string internally. You get the task_id after this interface returns successfully.

• Return value Returns an error code. See Error code reference.

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queryFileTranscriber

• Method signature

public synchronized int queryFileTranscriber(String task_id)

• Parameter description

  Parameter	Type	Description
  task_id	String	The ID of the task to query, obtained from the EVENT_FILE_TRANS_UPLOADED event.

• Return value Returns an error code. See Error code reference.

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cancelFileTranscriber

• Method signature

public synchronized int cancelFileTranscriber(String task_id)

• Parameter description

  Parameter	Type	Description
  task_id	String	The ID of the task to cancel, obtained from the EVENT_FILE_TRANS_UPLOADED event.

• Return value Returns an error code. See Error code reference.

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release

• Method signature

public synchronized int release();

• Return value Returns an error code. See Error code reference.

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GetVersion

• Method signature

public synchronized String GetVersion();

• Return value The current SDK version information.

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INativeFileTransCallback: listener callbacks

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onFileTransEventCallback: listen for events and recognition results

• Method signature

void onFileTransEventCallback(NuiEvent event, final int resultCode, final int arg2, AsrResult asrResult, String taskId);

• Parameter description

  Parameter	Type	Description
  event	NuiEvent	The callback event.
  resultCode	int	The error code. Valid when the EVENT_ASR_ERROR event occurs.
  asrResult	AsrResult	The speech recognition result.
  taskId	String	The task ID.
  arg2	int	A reserved parameter.

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onFileTransLogTrackCallback: listen for trace logs

default void onFileTransLogTrackCallback(Constants.LogLevel level, String log)

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NuiEvent: event types