Convert audio time to MM:SS

Question

I am trying to convert seconds to MM:SS and for some reason it is not showing correctly.

jQuery('#player-recorded-call').get(0).currentTime; is to get <audio> current time position.

For example

audioCurrentTime was set to 326.459368 which SHOULD be 05:26 (MM:SS) but for some reason it has been calculated to 05:84 (var dur)

    var audioCurrentTime = jQuery('#player-recorded-call').get(0).currentTime;

    var minutes = "0" + Math.floor(audioCurrentTime / 60);
    var seconds = "0" + (audioCurrentTime - minutes * 60);
    var dur = minutes.substr(-2) + ":" + seconds.substr(-2);

    $(".criteria-duration").html(dur);

I got this math example from https://stackoverflow.com/a/26206645/791022

score 3 · Accepted Answer · answered Jun 30 '15 at 23:03

3

Since audioCurrentTime isn’t a whole number, (audioCurrentTime - minutes * 60) won’t be either, and you’ll end up with a string like "0326.4593684". Taking the last two characters of that, you get 05:84.

You can truncate audioCurrentTime first:

var seconds = "0" + (Math.floor(audioCurrentTime) - minutes * 60);

The % (modulus) operator is also nice:

var seconds = "0" + Math.floor(audioCurrentTime % 60);

answered Jun 30 '15 at 23:03

Ry-

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Thank you! Is it possible to include HH: only if been over 60 minutes? – I'll-Be-Back Jun 30 '15 at 23:06
1

@I'll-Be-Back: Divide seconds by 3600 to get hours and check whether that’s `>= 1` before prepending it. – Ry- Jun 30 '15 at 23:08

score 3 · Answer 2 · answered Jun 30 '15 at 23:04

Your are missing the Math.floor call for seconds and get the last 2 digit of it, that is 84.

Updated code shall be :

var audioCurrentTime = jQuery('#player-recorded-call').get(0).currentTime;

var minutes = "0" + Math.floor(audioCurrentTime / 60);
var seconds = "0" +  Math.floor(audioCurrentTime - minutes * 60);
var dur = minutes.substr(-2) + ":" + seconds.substr(-2);

$(".criteria-duration").html(dur);

Convert audio time to MM:SS

2 Answers2