Agent
Agent is the central class for beat tracking
Constructor Summary
| Public Constructor | ||
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constructor(tempo: Number, firstBeatTime: Number, firsteventScore: Number, agentList: Array, params: Object) Constructor |
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Member Summary
| Public Members | ||
| public |
reference to the agent list |
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| public |
the current tempo hypothesis of the Agent, expressed as the beat period |
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the time of the most recent beat accepted by this Agent |
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correction factor for updating beat period |
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the array of onsets accepted by this Agent as beats, plus interpolated beats |
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the time after which an Agent that has not accepted any beat will be destroyed |
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| public |
the initial tempo hypothesis of the Agent, expressed as the beat period |
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the maximum allowed deviation from the initial tempo, expressed as a fraction of the initial beat period |
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factor for correcting score, if onset do not coincide precisely with predicted beat time |
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sum of salience values of the onsets which have been interpreted as beats by this Agent |
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the maximum time that a beat can deviate from the predicted beat time without a fork occurring |
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the maximum amount by which a beat can be later than the predicted beat time, expressed as a fraction of the beat period |
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the maximum amount by which a beat can be earlier than the predicted beat time, expressed as a fraction of the beat period |
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the number of beats found by this Agent, including interpolated beats |
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Method Summary
| Public Methods | ||
| public |
acceptEvent(eventTime: Number, eventScore: Number, err: Number, beatCount: Number) Accept the event time as a beat time, and update the state of the Agent accordingly |
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Makes a clone of the Agent |
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considerEvent(eventTime: Number, eventScore: Number): Boolean The event time is tested if it is a beat time |
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Interpolates missing beats in the Agent's beat track |
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Public Constructors
public constructor(tempo: Number, firstBeatTime: Number, firsteventScore: Number, agentList: Array, params: Object) source
Constructor
Params:
| Name | Type | Attribute | Description |
| tempo | Number | tempo hypothesis of the Agent |
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| firstBeatTime | Number | the time of the first beat accepted by this Agent |
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| firsteventScore | Number | salience value of the first beat accepted by this Agent |
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| agentList | Array | reference to the agent list |
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| params | Object |
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parameters |
| params.expiryTime | Number |
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the time after which an Agent that has not accepted any beat will be destroyed |
| params.toleranceWndInner | Number |
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the maximum time that a beat can deviate from the predicted beat time without a fork occurring |
| params.toleranceWndPre | Number |
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the maximum amount by which a beat can be earlier than the predicted beat time, expressed as a fraction of the beat period |
| params.toleranceWndPost | Number |
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the maximum amount by which a beat can be later than the predicted beat time, expressed as a fraction of the beat period |
| params.correctionFactor | Number |
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correction factor for updating beat period |
| params.maxChange | Number |
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the maximum allowed deviation from the initial tempo, expressed as a fraction of the initial beat period |
| params.penaltyFactor | Number |
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factor for correcting score, if onset do not coincide precisely with predicted beat time |
Public Members
public beatInterval: Number source
the current tempo hypothesis of the Agent, expressed as the beat period
public events: Array source
the array of onsets accepted by this Agent as beats, plus interpolated beats
public expiryTime: Number source
the time after which an Agent that has not accepted any beat will be destroyed
public initialBeatInterval: Number source
the initial tempo hypothesis of the Agent, expressed as the beat period
public maxChange: Number source
the maximum allowed deviation from the initial tempo, expressed as a fraction of the initial beat period
public penaltyFactor: Number source
factor for correcting score, if onset do not coincide precisely with predicted beat time
public score: Number source
sum of salience values of the onsets which have been interpreted as beats by this Agent
public toleranceWndInner: Number source
the maximum time that a beat can deviate from the predicted beat time without a fork occurring
public toleranceWndPost: Number source
the maximum amount by which a beat can be later than the predicted beat time, expressed as a fraction of the beat period
Public Methods
public acceptEvent(eventTime: Number, eventScore: Number, err: Number, beatCount: Number) source
Accept the event time as a beat time, and update the state of the Agent accordingly