Speaking speed
How fast the agent talks. Normal is1. Lower is slower and calmer, higher is
quicker.
- Slow down for older audiences, and for anything with numbers in it: prices, addresses, appointment times.
- Speed up only a little, if at all. Fast talkers are hard to trust.
Expressiveness
How much the voice varies its tone. A little variation sounds alive. Too much sounds theatrical, which reads as a performance rather than a person. A middle setting is usually the safe, natural choice.Background sound
By default the call is clean and quiet. You can add a light ambience, a soft call centre or a coffee shop, so it feels less sterile. Volume runs from 0 to 100, where 50 is the standard level and 0 is silent. 50 is not half of anything: it is the level the platform plays when nobody has chosen one, which is why it sits in the middle of the slider. Above 50 the bed is louder than normal, and 100 is roughly double. The volume only does anything while a background sound is selected. Turning the sound off leaves the volume where it was rather than resetting it. This is optional and easy to overdo. If it is distracting to you on a quiet listen, it is worse on a phone speaker in a supermarket. When in doubt, leave it off.Noise handling
Real calls are noisy on the caller’s end, not yours. This setting, shown as Denoising mode, decides how the agent cleans up what it hears. There are three choices:- Remove noise is the default and suits most calls. It filters out background noise before the agent hears the caller.
- Remove noise + background speech also drops other people talking near the caller. Try it if your leads often call from busy places, but it is stronger and can clip the caller’s own voice on a noisy line.
- No denoising passes the audio through unchanged. Use it when your calls are usually clean.
Do and don’t
- Do listen to the agent out loud before going live. Your ear catches things a settings page never will.
- Do match the pace to the audience, slower for detail heavy calls.
- Don’t push expressiveness to the top. Natural beats dramatic.
- Don’t add a busy background. If it distracts you, it distracts the caller.
In the API
- Update agent sets
voiceSpeed,voiceTemperature,backgroundSound,backgroundSoundVolumeanddenoisingMode - Get agent reads the current values first
- How your agent sounds covers the voice itself