Voice agent latency: how to investigate slow responses

Listen for where the wait occurs

To investigate voice agent latency, identify the waiting interval: end of caller speech to response start, duration of an external lookup or total call duration. Compare an informational question with a tool-dependent request. If only the lookup is slow, investigate the integration before changing instructions or turn controls.

Distinguish a late response start from a lengthy answer. The former can involve processing; the latter may need clearer instructions to speak in short steps.

Test when to listen and when to respond

Tigy's conversation settings control silence, turn start and stop, interruptions and duration. Pause halfway through a sentence and observe whether the agent waits for completion.

Adjust one control and repeat the sentence. Shortening a wait without accounting for natural speech can cause interruptions that lose important information.

Reduce unnecessary lookups without losing confirmation

An integration should return the information required for the task in a predictable format. The technical team can review redundant queries and slow operations in the service behind the tool.

A short explanation can orient the caller during a noticeable wait. It should not announce success before a result or fill the pause with promises the system has not verified.

Compare the experience in realistic conditions

Use similar questions, the same channel and comparable connection conditions. Record pauses, overlapping speech, misunderstandings and task completion.

Tigy manages transcription and voice providers. Focus available adjustments on instructions, conversation settings and integrations. Faster conversation is an improvement only when the person can complete the task.

Record your own timeline

Use the worksheet to record caller speech ending and response audio starting on one time base. Perceived wait is the difference between these points. Record each timestamp’s source: recording, manual observation or integration logs.

When a tool participates, record start and end only when externally evidenced. Do not subtract unsynchronized clocks or attribute all delay to the model. Keep internal components unknown when verifiable events are absent.

Repeat identical requests under similar conditions and record channel, connection and prompt version. Fill the worksheet with times observed in your tests; blank fields are collection spaces, not performance results. Do not publish illustrative numbers as Tigy latency results.

Investigate slow segments before changing components

For specific slow lookups, inspect network, authentication, external processing and return size. If all answers pause, inspect turn detection and audio conditions. Record channels and settings.

Brief truthful waiting messages can help; repetitive or invented progress cannot. Distinguish ongoing lookup from failure.

Rerun both fast and slow cases after changes. Inspect distributions and very slow calls rather than averages alone. Worksheets are evaluation methods, not previously measured Tigy performance.

Fast calls still need to complete the task

Do not remove necessary confirmation to shorten calls. Extra seconds can prevent an entire interaction about the wrong record. Evaluate time alongside accuracy and rework.

Remove repetitive introductions, long lists and internal messages. Give the main answer and offer detail when requested.

Check repeat contacts and abandonment. Hanging up during long silence is not efficient completion. Explain relationships among delay, language and actual outcomes.

Choose the interval you are measuring

Latency can describe different intervals. Waiting after the caller finishes speaking is not the same as external retrieval time or total call duration. Before comparing configurations, define measurement boundaries. One useful experience interval runs from the perceived end of customer speech to the beginning of audible response, but observations should state how those moments were identified.

This definition introduces a challenge: the end of speech is not always obvious. A caller may pause to remember a number or breathe midway through a sentence. Answering earlier can reduce apparent waiting while interrupting necessary information. Waiting longer can preserve the sentence while making service feel slow. Adjustment requires observing audience patterns and the data being collected.

Separate cases without tools from cases requiring retrieval. An opening-hours answer may come from available content; verifying a purchase depends on another operation. Combining everything into one average can lead to shortening responses without fixing the system responsible for most waiting. Decomposition identifies where changes can have an effect.

Use the same question and comparable conditions when investigating a change. Different networks, devices and tasks introduce variation. Do not convert one quick execution into a general performance promise. Record a sequence of trials and examine slower cases for causes. A small group of very long waits may damage experience more than a modest shift in the average.

In manual review, listen to the complete segment. A record may show that speech started early, but the first sentence could be an empty expression before useful information. Distinguish audio onset from relevant content onset. That prevents optimizing an indicator while the caller still waits for the requested answer.

Explain waiting without creating false confirmation

During slow retrieval, a short message can explain task state. “I am checking the order” describes an action in progress when retrieval actually started. “Everything is confirmed” is not a waiting message: it asserts an outcome. Choose wording that does not confuse progress, acceptance and completion.

Avoid filling every silence with another sentence. Frequent messages can make interruption difficult, especially when tool results arrive during an explanation. Use communication proportional to the wait and information value. A brief lookup may need no commentary; a noticeably long one can justify a short explanation and an alternative after the approved limit.

Consider a fictional reservation. The agent submitted a request but has not received confirmation. The caller asks, “So it is booked now?” The answer must preserve uncertainty. If the system confirms only after processing, explain that state and offer the available next step. Maintaining conversational fluidity does not authorize claiming an outcome that does not yet exist.

Also consider cancellation during waiting. A caller changing their mind does not establish that a previously submitted operation can be undone. Conversation must follow the integration contract. For retrieval, stopping presentation may suffice; for writes, it may require checking status and using a specific cancellation operation where available. Plan that case before the pilot.

External failure requires a useful alternative. Do not extend waiting indefinitely or announce automatic follow-up nobody monitors. Establish an operational limit and approved alternative channel. If a second attempt is permitted, distinguish operations without effects from those that may create duplicate records.

Listen to waiting messages in the selected voice. Suitable written language may sound overly formal or take too long aloud. Use simple vocabulary and leave room for the caller. Waiting quality includes clear task state and interruption opportunities alongside the measured interval.

Reduce listening effort before removing information

A long response can make service feel heavy even with little initial waiting. Organize speech around the customer's decision. Give the main result first, then the necessary condition and a question or next step. Add detail when requested. This reduces how much the listener must retain at once.

Do not remove important conditions solely to shorten speech. A delivery estimate without “estimated” changes meaning. A price without units or billing period can confuse. Preserve elements affecting decisions and remove repetition, excessive greetings and internal explanations customers need not hear.

Test answers containing names, dates and numbers. Slightly slower speech may support correct confirmation. Evaluate comprehension rather than duration alone. If callers repeatedly request repetition, a fast response may create more work across the whole call.

After adjusting, compare task success, interruptions and collection errors. A useful configuration preserves understanding and outcome under audience conditions. Faster responses accompanied by more wrong-record lookups require review even when waiting metrics improve.

Keep these observations tied to the tested channel. A quiet browser session cannot establish the same experience on a telephone call with background noise. Validate the actual channel and explain remaining variation rather than promising one fixed response time for every task.

Compare speed with information accuracy

Include a task requiring the agent to hear a correction fully. The caller supplies a code, pauses and replaces a digit. If configuration responds during that pause, record whether retrieval uses the old code. This identifies shorter waiting that compromises the task rather than merely measuring when speech begins.

Then repeat the task with a short sentence and no correction. The comparison shows whether the change preserves both the simple case and the one needing more listening time. Consider both outcomes when adjusting.

For a practical comparison sheet, record the task, channel, perceived end of speech, audible response start, any tool wait and whether the final value was correct. Use this sheet to explain why one configuration is preferable. If timestamps are unavailable, manual review can still establish recurring interruption patterns, but describe that observation honestly rather than claiming precise timing. A useful conclusion connects speed to task accuracy and gives the team a repeatable case for the next change.