Audio Settings

Noise Gate

MobileConnect uses a built-in noise gate to effectively reduce background noise and significantly improve your end users hearing experience. In some cases, for example in a theater with silent background chatter or environmental sounds, the noise gate may cut off quite passages which were intended to be heard by the audience. To allow such desired background sounds to reach your MobileConnect users, you can adjust the noise gate settings for each MobileConnect channel separately.

Navigate to the channel settings page using the Local Admin interface or MobileConnect Manager and adjust the noise gate threshold according to your needs. You can always switch back to default settings using the ‘Reset’ button. Moving the slider left allows subtle sounds to pass through, moving the slider right reduces noise. Use these setting scarefully, as having the slider too low will allow every background noise to be heard, while having it too high might cut off parts of the speech and thus cause audible artifacts in the transmitted signal. These can be very uncomfortable to listen to, especially when using headphones or hearing aids.

Latency

MobileConnect is made for streaming live audio to mobile devices. Besides its very high audio quality, MobileConnect tries to achieve the lowest delay in audio transmission possible. In default configuration, our algorithm optimizes audio delay for each end device, which means that it will vary per end device. Hence, high quality mobile devices will most likely show lower audio delay than lower quality devices.

Note

Please keep in mind that your network configurations have the highest impact on audio quality and delay. Check out our Guidelines & Whitepapers section for more info.

In some cases, you might wish to sacrifice on audio delay for the sake of higher audio transmission stability. For example, when transmitting audio of a simultaneous interpreter or a TV, it might make sense to set a higher manual latency value, to achieve the best possible audio stability while forcing all connected end devices to show the same audio latency. You should use this functionality with care, as too low manual values will lead to audio dropouts on some lower quality devices, for example on some Huawei or Motorola phones. We recommend using the ‘Optimised’ configuration or a manual configuration with a target latency above 150 milliseconds.