Get duration of audio file Android

Question

I have a ListView with several audio files. For each one I have to get the duration in order to display it in the list.

This is what I have tried yet:

MediaPlayer getDuration() -> takes about 1 sec for 13 items

MediaStore and Cursor -> takes about 2 sec for 13 items

This is way too much for displaying the ListView.

So I have thought of this:

creating a database with file-names and duration when recording the audio files

-> this leads to a data inconsistency, because files could have been deleted

Is there a alternative way to achieve this?

Thanks in advance

Check this answer https://stackoverflow.com/questions/15394640/get-duration-of-audio-file — Agustin Pazos, Mar 25 '19 at 17:50

N-JOY · Answer 1 · 2019-10-14T16:08:23.843

3

MediaMetadataRetriever can be used to get meta data related to media files

MediaMetadataRetriever mediaMetadataRetriever= new MediaMetadataRetriever();
 mediaMetadataRetriever.setDataSource(filePath);

String duration = mediaMetadataRetriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION));

extractMetadata(int) method can be used above Android API level 10.

duration will be in millisecs.

edited Oct 14 '19 at 16:08

answered Mar 27 '19 at 07:13

N-JOY

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it should be "METADATA_KEY_DURATION" – Padma Kumar Oct 07 '19 at 11:02

score 2 · Answer 2 · answered Mar 27 '19 at 01:51

MediaMetaDataRetriever is what I use to collect metadata of an audio or video file, including video preview frames, check out https://developer.android.com/reference/android/media/MediaMetadataRetriever to see what type of meta data you can retrieve from a media file. You should be able to use

extractMetaData(MediaMetadataRetriever.METADATA_KEY_DURATION)

to get the duration of the audio/video file.

Vijay · Answer 3 · 2020-10-08T13:03:49.713

I had the same problem (in 2020), the number of audio files in my case is about 4000-5000 files (of 5-10 minutes each). So in my case, it was taking too long. So I created an SQLite database and after that filtering, the files was a work of milliseconds. Here multithreading can't help because it is a disk task, not a computation. I did same as @N-JOY told but it was taking long (in minutes). Still, I wanted to make it fast.

My solution - After recording the audio file, add the length in AudioFile name and extracting the length of the file is a very easy task from its name. In this way, my recycler view is faster. Hope it helps someone.

But in case you have a lot of files created already then the database is the best option.

Get duration of audio file Android

3 Answers3