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how extract music files from apk files

i need to rip the ost from dbz dokkan battle (a movile game) but idk how..

Re: how extract music files from apk files

Reply #1 –
You can extract an apk with any unzip program (i used 7zip).
In dragon-ball-z-dokkan-battle-4-5-3.apk I only found one music file called bgm_009.awb in assets\bgm\.
Install foobar2000 and install the the vgmstream decoder by Kode54.
Then you should be able to play the bgm_009.awb file.
According to foobar/vgmstream it is this format: CRI ADX 4-bit ADPCM (type 9 encryption).

I do not know the game, but i suspect there should be more music than this one. So either i missed it in the apk.
Or maybe the game download additional data file. Then you should search that.

Re: how extract music files from apk files

Reply #3 –
Quote from: Mark7 on
You can extract an apk with any unzip program (i used 7zip).
In dragon-ball-z-dokkan-battle-4-5-3.apk I only found one music file called bgm_009.awb in assets\bgm\.
Install foobar2000 and install the the vgmstream decoder by Kode54.
Then you should be able to play the bgm_009.awb file.
According to foobar/vgmstream it is this format: CRI ADX 4-bit ADPCM (type 9 encryption).

I do not know the game, but i suspect there should be more music than this one. So either i missed it in the apk.
Or maybe the game download additional data file. Then you should search that.
yeah i dont know if the sound files are getting by actualization or if i need to install the game in my phone and then seach the files

Re: how extract music files from apk files

Reply #4 –
According to Wikipedia, ADX is a variant of MPEG2 audio. So mpg123 should be able to play the demuxed stream. But it says the file is encrypted and without a (legal) key, your are out of luck. Probably easier to grab the analog signal with an ADC.

Re: how extract music files from apk files

Reply #5 –
ADX is an ADPCM format owned by CRI Middleware, not an mpeg derivative.

Re: how extract music files from apk files

Reply #6 –
Quote from: kode54 on
ADX is an ADPCM format owned by CRI Middleware, not an mpeg derivative.

My mistake, the MPEG2 audio derivative is AHX.

Re: how extract music files from apk files

Reply #7 –
Quote from: tehabe on
According to Wikipedia, ADX is a variant of MPEG2 audio. So mpg123 should be able to play the demuxed stream. But it says the file is encrypted and without a (legal) key, your are out of luck. Probably easier to grab the analog signal with an ADC.
how i can get the files then? i dont know how to grab the signal with adc

Re: how extract music files from apk files

Reply #10 –
Quote from: tiffaff on
they didnt answer me

well i will try for my own... but if someone can help me it will be great too

You posted in the wrong section, didn't provide any useful information (url, not a single awb file) and despite this you got an answer.
Did you even try extracting the awb files with QuickBMS with the proper script?

Re: how extract music files from apk files

Reply #11 –
Quote from: Thundik81 on
Quote from: tiffaff on
they didnt answer me

well i will try for my own... but if someone can help me it will be great too

You posted in the wrong section, didn't provide any useful information (url, not a single awb file) and despite this you got an answer.
Did you even try extracting the awb files with QuickBMS with the proper script?
i tried but idk how

Re: how extract music files from apk files

Reply #12 –
can make a request? i only needs 3 themes from this game

kid goku theme
title theme
title 8 bit theme

Re: how extract music files from apk files

Reply #14 –
Yes, but that file at least have 3 re-encoding, i want it in his true quality
 
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