Podonos
This is a base module. You can import:python
init()
Initialize the module and return an instance ofClient.
string
API key you obtained from the workspace. For details, see the Get API key.
If this is not set, the package tries to read
PODONOS_API_KEY from the environment variable.
Throws an error if both of them are not available.string
default:"https://prod.podonosapi.com"
API base URL. You usually do not need to set this unless you are using a private, staging, or development API endpoint.
Client.
python
Client
Client manages one or more Evaluator instances and evaluation history.
create_evaluator()
Create a new instance ofEvaluator. One evaluator supports a single type of evaluation throughout its life cycle.
If you want multiple types of evaluation, create multiple evaluators by calling create_evaluator() multiple times.
string
Name of this evaluation session. If empty, a random name is automatically generated and used.
string
Description of this evaluation session. This field is for your records, so later you can see how you generated the output files or trained your model.
string
default:"NMOS"
Evaluation type. One of the following:
string
default:"en-us"
Specific language and locale of the speech. Currently we support:
We will add more soon. Please check later again.
float
default:"1.0"
Granularity of evaluation scales. Supported values are
1.0 and 0.5.int
default:"10"
Number of evaluations per sample. For example, if this is 10 for NMOS type evaluation, each audio file will be assigned to 10 humans, and the statistics of the evaluation output will be computed and presented in the final report.
int
default:"12"
Expected due time of the final report in hours. Must be at least
12. Depending on the hours, the pricing may change.bool
default:"False"
Enable annotation to collect free-form text feedback from evaluators.
bool
default:"True"
Enable loudness normalization to ensure consistent audio volume levels during evaluation.
bool
default:"False"
If True, the evaluation automatically starts when you finish uploading the files. If False, you go to Workspace, confirm the evaluation session, and manually start the evaluation.
int
default:"20"
Maximum number of upload worker threads. If you experience a slow upload, please increase the number of workers.
int
default:"100"
Batch size for file verification API calls. Must be between
1 and 1000.tuple[float, float]
default:"(5, 30)"
Timeout tuple for API requests, in seconds.
tuple[float, float]
default:"(5, 120)"
Timeout tuple for file verification requests, in seconds.
tuple[float, float]
default:"(10, 300)"
Timeout tuple for direct file upload requests, in seconds.
bool
default:"False"
Enable SDK-local upload ledger/resume support. The ledger records upload progress and the original evaluation contract so interrupted uploads can be resumed safely.
string
default:"None"
Optional SQLite upload ledger path when
resume_upload=True. Use the same path with resume_evaluator() if the upload is interrupted.Evaluator.
resume_evaluator()
Resume uploads for an existing evaluation using an SDK upload ledger. Add files again in the same order as the interrupted run so the ledger can recover each file’s remote object identity.Resume is safety-checked against the local ledger. The ledger must contain the original evaluation contract and session configuration for
evaluation_id; otherwise the SDK refuses to resume. The SDK restores the original session details from the ledger where available, so do not use resume_evaluator() to change the evaluation type, language, template, batch size, or file identities.During resume, completed ledger rows are reused only when the current local file still matches the recorded path, content hash, size, and upload manifest. If a completed metadata or verification row no longer matches the local file, start a fresh evaluation or remove the stale ledger row before resuming.string
required
Evaluation ID to resume.
string
required
Path to the SDK upload ledger created by a previous upload run. It must contain the original evaluation contract for
evaluation_id.string
Optional session name.
string
Optional session description.
string
default:"NMOS"
Evaluation type. Uses the same supported values as
create_evaluator().string
default:"en-us"
Language code. Uses the same supported values as
create_evaluator().float
default:"1.0"
Granularity of evaluation scales.
int
default:"10"
Number of evaluations per sample.
int
default:"12"
Expected due time of the final report in hours.
bool
default:"False"
Enable annotation to collect free-form text feedback from evaluators.
bool
default:"True"
Enable loudness normalization for evaluation.
bool
default:"False"
If True, the evaluation automatically starts after files are uploaded.
int
default:"20"
Maximum number of upload worker threads.
int
default:"100"
Batch size for file verification API calls.
tuple[float, float]
default:"(5, 30)"
Timeout tuple for API requests, in seconds.
tuple[float, float]
default:"(5, 120)"
Timeout tuple for file verification requests, in seconds.
tuple[float, float]
default:"(10, 300)"
Timeout tuple for direct file upload requests, in seconds.
python
create_evaluator_from_template()
When you create an evaluation using a template, all the questions and options defined in the template are automatically assigned to the new evaluation. This ensures consistency and saves time by reusing pre-defined content.string
required
Name of this evaluation session. Required and must be non-empty.
string
required
The unique identifier of the template to base the new evaluation on.
string
Description of this evaluation session. This field is for your records.
int
default:"10"
Number of evaluations per sample.
bool
default:"False"
Enable annotation to collect free-form text feedback from evaluators. Cannot be used together with an
annotations array in template JSON.bool
default:"True"
Enable loudness normalization to ensure consistent audio volume levels during evaluation.
bool
default:"False"
If True, the evaluation automatically starts when you finish uploading the files.
int
default:"20"
Maximum number of upload worker threads.
int
default:"100"
Batch size for file verification API calls.
tuple[float, float]
default:"(5, 30)"
Timeout tuple for API requests, in seconds.
tuple[float, float]
default:"(5, 120)"
Timeout tuple for file verification requests, in seconds.
tuple[float, float]
default:"(10, 300)"
Timeout tuple for direct file upload requests, in seconds.
bool
default:"False"
Enable SDK-local upload ledger/resume support. The ledger records upload progress and the original evaluation contract so interrupted uploads can be resumed safely.
string
default:"None"
Optional SQLite upload ledger path when
resume_upload=True. Use the same path with resume_evaluator() if the upload is interrupted.create_evaluator_from_template_json()
Create a new evaluation using a JSON template. This allows you to define custom evaluation structures programmatically.Dict
Template JSON as a dictionary. Optional if
json_file is provided.string
Path to the JSON template file. Optional if
json is provided.string
Name of this evaluation session. Optional; if omitted, the SDK generates a name.
string | CustomType
default:"SINGLE"
Type of evaluation. Accepts either a string or
CustomType enum value.You can use string values (
"SINGLE", "DOUBLE", "SINGLE_REF", "RANKING") or the CustomType enum from podonos.common.enum:string
Description of this evaluation session. Optional.
string
default:"en-us"
Language for evaluation. See supported languages in
create_evaluator().int
default:"10"
Number of evaluations per sample.
bool
default:"False"
Enable annotation to collect free-form text feedback from evaluators. Cannot be used together with an
annotations array in template JSON. When using custom annotation questions, define them in the annotations array instead.bool
default:"True"
Enable loudness normalization to ensure consistent audio volume levels during evaluation.
bool
default:"False"
If True, the evaluation automatically starts when you finish uploading the files.
int
default:"20"
Maximum number of upload workers. Must be a positive integer.
int
default:"100"
Batch size for file verification API calls.
tuple[float, float]
default:"(5, 30)"
Timeout tuple for API requests, in seconds.
tuple[float, float]
default:"(5, 120)"
Timeout tuple for file verification requests, in seconds.
tuple[float, float]
default:"(10, 300)"
Timeout tuple for direct file upload requests, in seconds.
bool
default:"False"
Enable SDK-local upload ledger/resume support. The ledger records upload progress and the original evaluation contract so interrupted uploads can be resumed safely.
string
default:"None"
Optional SQLite upload ledger path when
resume_upload=True. Use the same path with resume_evaluator() if the upload is interrupted.Evaluator.
Here’s the JSON template for reference:
- Question
- Option
- Anchor Label
- Instruction
- Annotation
Question: Represents the main question posed to evaluators about the audio being assessed. It guides evaluators on the specific aspect of the audio they should focus on during the evaluation.Important Notes:
SCOREDandNON_SCOREDquestions can have a maximum of 9 options.NON_SCOREDquestions must specifyallow_multiple.COMPARISONtype questions must have a scale between 2 and 9.related_modelconsists ofALL,MODEL_AandMODEL_B. Default isALL. Therelated_modelis only used for the question (not for instructions).
flash_eval()
Run automatic evaluation on an audio file and return aFlashEvalResult.
string
required
Path to the audio file to evaluate.
string
Language code for model routing. Currently available:
en-us, es-es. When omitted, the default en-us model is used. Ignored when category="noise_quality".string
Evaluation category. Defaults to
naturalness when omitted. Currently available: naturalness, noise_quality.FlashEvalResult with these fields:
python
get_evaluation_list()
Returns a JSON containing all your evaluations.get_eval_template_info()
Gets detailed information about an evaluation template by its ID.string
The unique identifier of the evaluation template to retrieve information for.
get_stats_json_by_id()
Returns a list of JSONs containing the statistics of each stimulus for the evaluation referenced by theid.
string
Evaluation id. See
get_evaluation_list().string
default:"question"
Group by criteria. Options are “question”, “script”, or “model”. Default is “question”. Note that “script” and “model” are only available for single-question evaluations.
For NON_SCORED questions:
- The integer value is the number of evaluators who selected the option.
- All options are included in the response regardless of their value
- Single
- Double (including CSMOS)
You can get the statistics of each question by calling
get_stats_json_by_id() with group_by set to question, script, or model.download_evaluation_files_by_evaluation_id()
Download all files associated with a specific evaluation, identified by itsevaluation_id, from the Podonos evaluation service. It saves these files to a specified directory on the local file system and generates a metadata file describing the downloaded files.
Return a string indicating the status of the download operation. This could be a success message or an error message if the download fails.
string
Evaluation id. See
get_evaluation_list().string
The directory path where the downloaded files will be saved. This should be a valid path on the local file system where the user has write permissions.
File Naming Convention:Each downloaded file is saved in the format
{output_dir}/{model_tag}/{file_name}. This means that files are organized into subdirectories named after their model_tag, and the original file name is hashed formatted.File
A class representing one file, used for adding files inEvaluator.
string
required
Path to the file to evaluate. For audio files, we support
wav, mp3, and flac formats.string
required
Name of your model (e.g.,
WhisperTTS) or any unique name (e.g., human).list[string]
A list of string tags for the file designated by
path. You can use this field as properties of the file such as original, synthesized, tom, maria, and so on. Later you can look up or group files with particular tags in the output report.string
Text script of the input audio file.
bool
default:"False"
True if this file works as a reference in a comparative evaluation.
Dict[str, str | int | float | bool | None]
Optional metadata dictionary for the file. Keys must be strings, and values must be JSON-primitive values.
list[string]
Optional tags for the script. These are useful for ranking and script-level grouping.
python
Evaluator
Evaluator manages a single type of evaluation.
add_file()
Add one file to evaluate in a single evaluation question. For a single file evaluation likeNMOS, one file to evaluate is added.
File
required
Input
File. This field is required if type is NMOS, QMOS, P808, or CUSTOM_SINGLE.add_files()
Add multiple files for evaluations that require comparison.File
required
First input file.
File
required
Second input file.
File
Optional third input file. Used for
CSMOS evaluations with one reference and two stimuli.add_ranking_set()
Add one ranking set for aRANKING evaluation.
list[File]
required
Ordered candidate files for one ranking group. Files must be stimuli, not references.
- All groups must have the same number of files.
- The order of
model_tagmust be identical across groups. - Files must be stimuli; do not set
is_ref=True.
python
close()
Close the evaluation session. Once this function is called, all the evaluation files will be sent to the Podonos evaluation service, the files will go through a series of processing, and delivered to evaluators. Returns a JSON object containing the uploading status.python

