Since 2016 WhatsApp has changed the audio format for its voice notes to the opus format. Opus Player was born as a simple audio player for this format but now it is something more.
As most audio players you can start it in your file manager but differently from the others you can choose the audio output selecting the main speaker or the earpiece (the speaker for the voice call). It is useful if you don't have a headphone with you.
Opus Player is compatible with most file explorers on Google Play.
Moreover it provides a lot of features for managing your audio messages such as deleting sharing and organizing that make it the best audio manager for WhatsApp's voice notes.

Features:

-CHOOSE THE AUDIO OUTPUT: you can switch your audio output between the standard multimedia and the voice call's speaker. It is very useful if you are in a silent environment (like libraries or classrooms) and it is easy like pressing a button.

-USE IT WITH WHATSAPP: if you don't trust in the Whatsapp's sensor system for switching the audio output you can use Opus Player exploiting the simple user interface provided by it. Just long press on the WhatsApp VNs press on the share button and select Opus Player.

-WHATSAPP VOICE NOTES HISTORY: Opus Player takes a history of all your voice messages received and sent through WhatsApp and it shows them to you in order of date giving you the possibility to easily find an old voice note and share it with other apps.

-ORGANIZE IN CATEGORY: you can create a category giving it a name and an image and associate to it all the audio messages you want. After created the categories you can filter the voice notes choosing to show only those belonging to one or more categories. Moreover you can delete all the voice notes in a category with only click.

-RENAME THE VOICE NOTES: you can change the name to each audio message without worrying about the compatibility with WhatsApp: the name is stored and shown only in Opus Player without modifying the file in order to avoid problems while running on WhatsApp.

-SET A TEXT NOTE: you can relate each vNote to a text note maybe for summarizing the content of the audio or for taking note of who is the sender.

-MULTIPLE SELECTION: one of the new feature is the multiple selection. You can select multiple voice messages received in a day and you can perform different actions on them:
-delete
-share
-add to a category
-set an icon
-set a text note

-SELECT THE FOLDER : starting from the 2.1 version you can manually select the folder in which Opus Player must search the .opus files. You can select the Telegram folder (TelegramTelegram Audio) as well. Just remember to select the "select the ogg files" option because it uses the .ogg extension instead of .opus and "use file's date" because it doesn't save the date in the name as WhatsApp does.

Why download Opus Player:

- it save you time when you need to find old voice messages;
- listening the new received voice notes directly from the app WhatsApp will not be notified and the blue ticks will not be shown;
- you can privately listen your voice messages in a silent manner being sure that nobody else can hear them.

Follow the updates on the facebook page:
https://www.facebook.com/OpusPlayer/

If you have any problem or even any tips please contact us to [email protected] or directly write on the facebook page.

Open source libraries:
-libogg
licensed under BSD license
https://www.xiph.org/ogg/
-libopus
licensed under BSD license
https://opus-codec.org/
-glide
licensed under BSD license
https://github.com/bumptech/glide

fonts:
The Android Insomnia typeface is designed by Michael Moss (whitespirals.com) and the font is available via the Creative Commons Attribution 4.0 International License.

Spanish translation by:
Maria Teresa Tartaglione
Juan Camilo Ramirez Orozco
Japanese translation by:
Saverio Picozzi