> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # toggleEchoCancellation > Toggles echo cancellation on the audio input. ```ts toggleEchoCancellation(): Promise ``` Toggles echo cancellation on the audio input. ## **Returns** `Promise` ## **Examples** ```ts await participant.toggleEchoCancellation(); ``` ## **See** * [`echoCancellation$`](/docs/browser-sdk/v4/reference/participant/echo-cancellation\$) — reactive state pair. * [`toggleAudioInputAutoGain`](/docs/browser-sdk/v4/reference/participant/toggle-audio-input-auto-gain) / [`toggleNoiseSuppression`](/docs/browser-sdk/v4/reference/participant/toggle-noise-suppression). * [`SelfParticipant.enableStudioAudio`](/docs/browser-sdk/v4/reference/self-participant/enable-studio-audio) — disable all three at once. > Toggles echo cancellation on the audio input.