Search Response

Interpreting a Search Response

A search may result in zero or many matches. If one or more assets are matched, the search response conveys the following information:

• Matched Assets - the "provided ID" of the matched asset(s)

• Match Details - the details of the match including match duration, match segments and any modification details

Below is an example of a search response for an audio search that matched to one asset:

{
  "lookup_ids": [
    "522174538802801153"
  ],
  "query_file_duration_seconds": 158.0,
  "matches": [
    {
      "provided_id": "my_custom_asset_id_123",
      "match_details": {
        "audio": {
          "query_match_duration_seconds": 158.0,
          "query_match_percentage": 100.0,
          "asset_match_duration_seconds": 207.0,
          "asset_match_percentage": 100.0,
          "segments": [
            {
              "query_start": 0,
              "query_end": 158,
              "asset_start": 0,
              "asset_end": 207,
              "audio_pitch": 450,
              "audio_speed": 130,
              "melody_transposition": null,
              "confidence": 100
            }
          ]
        },
        "melody": null,
        "video": null
      }
    }
  ]
}

Below is an example of a search response for a melody search that matched to one asset:

{
  "lookup_ids": [
    "522174538802801153"
  ],
  "query_file_duration_seconds": 158.0,
  "matches": [
    {
      "provided_id": "my_custom_asset_id_123",
      "match_details": {
        "audio": null,
        "melody": {
          "query_match_duration_seconds": 158.0,
          "query_match_percentage": 100.0,
          "asset_match_duration_seconds": 207.0,
          "asset_match_percentage": 100.0,
          "segments": [
            {
              "query_start": 0,
              "query_end": 158,
              "asset_start": 0,
              "asset_end": 207,
              "audio_pitch": null,
              "audio_speed": null,
              "melody_transposition": 5,
              "confidence": 100
            }
          ]
        },
        "video": null
      }
    }
  ]
}

Search Response Glossary

Below is a description of the fields provided in a search response:

Field	Description
lookup_ids	Unique identifier(s) representing a particular search
query_file_duration_seconds	Total duration of the file submitted for search
matches	Match information for assets identified in the search
.provided_id	Custom ID of the identified asset
.match_details	Match details between the submitted file (query) and the identified asset
..audio (or ..melody)	Audio or Melody match details between query and identified asset
...query_match_duration_seconds	Match duration of the query that matched to the identified asset
...query_match_percentage	Match percentage (query match duration / query duration) of the query that matched to the identified asset
...asset_match_duration_seconds	Match duration of the identified asset that matched to query
...asset_match_percentage	Match percentage (asset match duration / asset duration) of the identified asset that matched to query
...segments	Details about the match segments between the submitted file (query) and the identified asset
....query_start	Start point of the query's match segment that matched to the identified asset
....query_end	End point of the query's match segment that matched to the identified asset
....asset_start	Start point of the asset's match segment that matched to the query
....asset_end	End point of the asset's match segment that matched to the query
....audio_pitch	For audio matches only: Difference in pitch (in terms of cents) between the query and the identified asset. For example a value of 0 indicates the pitch of both the query segment and the asset segment is the same. A value of 400 indicates the pitch of the query segment is 400 cents higher (or 4 semitones higher) than the speed of the asset segment
....audio_speed	For audio matches only: Difference in speed (in terms of %) between the query and the identified asset. For example a value of 100 indicates the speed of both the query segment and the asset segment is the same. A value of 125 indicates the speed of the query segment is 25% faster than the speed of the asset segment
....melody_transposition	For melody matches only: Pitch transposition (in terms of semitones) between the query and the identified asset. For example a value of 0 indicates the there is no transposition between the query segment and the asset segment. A value of -2 indicates the query segment is 2 semitones lower than the identified asset segment
....confidence	A confidence value for the identified match segment