AudioDelay

AudioDelay[audio,delay] creates audio by adding repeated decaying echos to audio spaced by the specified delay.

AudioDelay[audio,delay,feedback] uses the specified feedback as the amount of signal to preserve during each repetition.

AudioDelay[audio,delay,feedback,mix] uses mix to control the ratio between original and delayed audio.

AudioDelay[video,…] add delay to the first audio track in video.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.