May 4th, 2021, 17:57
May 4th, 2021, 18:50
May 8th, 2021, 11:06
May 8th, 2021, 15:07
May 8th, 2021, 15:18
May 10th, 2021, 15:27
May 10th, 2021, 15:29
May 23rd, 2021, 8:03
May 23rd, 2021, 20:08
May 24th, 2021, 6:03
fzabkar wrote:I have extracted all the MP3 files. The included text file identifies the absolute offset and size of each MP3 file.
May 24th, 2021, 14:44
May 24th, 2021, 15:01
May 24th, 2021, 22:22
May 25th, 2021, 0:13
The solution is based on AK1052/AK1161 and Spotlight Micro RAM System. The applications, controller and Bluetooth protocol stack run in one system, which is stable, reliable, fully functional and with good expansibility.
The solution is compatible with various Bluetooth cell phones and Bluetooth devices through actual connection test. Anyka can provide Bluetooth modules with BQB authentication. Customers' products can be listed on EPL free of test and charge, which is cost-effective and time-efficient.
The solution has excellent sound quality comparable with that of the professional audio players. With good audio decoding capability enhanced by ARM 9, the solution supports various audio formats such as MP3, WMA, APE, FLAC, OGG and WAV.
May 25th, 2021, 0:28
May 25th, 2021, 1:00
May 25th, 2021, 4:39
HaQue wrote:I encoded an .mp3 and the output in HEX editor looks nothing like the supplied BT files. Also the decode.exe outputs that it is not a Speex file.
So the BT speaker has a Anyka MCU?
I don't know if this helps further in any way:
http://www.anyka.com/en/productInfo.aspx?id=94The solution is based on AK1052/AK1161 and Spotlight Micro RAM System. The applications, controller and Bluetooth protocol stack run in one system, which is stable, reliable, fully functional and with good expansibility.
The solution is compatible with various Bluetooth cell phones and Bluetooth devices through actual connection test. Anyka can provide Bluetooth modules with BQB authentication. Customers' products can be listed on EPL free of test and charge, which is cost-effective and time-efficient.
The solution has excellent sound quality comparable with that of the professional audio players. With good audio decoding capability enhanced by ARM 9, the solution supports various audio formats such as MP3, WMA, APE, FLAC, OGG and WAV.
Possible the speex encoded files are further encoded with a XOR key? the view in HxD looks differrent, as I would expect a few 00's in the header and at the end of the file
finally: https://www.zixinhualang.com/productinfobc58-2.html?id=78 may or may not add something to this quest.
based on the above, you may be able to disassemble the firmware knowing the actual processor to plug into the disassembler
May 25th, 2021, 4:41
fzabkar wrote:I have extracted and attached the voice MP3s in one of the updates. Unfortunately they are all Chinese.
May 25th, 2021, 9:26
After all of that I have no clue what would make someone create such horrible protocol for a commercial product. Why not just follow standards? The AK3918 SDK has a RTSP example which a nice configuration page. What the HELL was the developer was thinking when doing that? Obfuscating stuff? I’m pretty sure he failed in that too.
May 25th, 2021, 10:08
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