India, Sept. 9 -- You save a video, open it later, and the picture plays fine while nothing comes out of the speaker. It is one of the more irritating outcomes on Android, partly because the file looks completely normal until you press play.

The good news is that the cause is usually one of four things, and three of them take about a minute to sort out. If you would rather skip the diagnosis entirely, Snaptube is the short answer: it combines video and audio into one finished file at every quality setting, so the most common reason downloads come back silent never applies to it. The longer answer, cause by cause, is below.

Four Reasons the Audio Went Missing

The most common cause has nothing to do with your phone. Many browser-based do...