UNIX for Advanced & Expert Users

Sorry you are not the man, you are the KING

The encoded audio data probably doesn't need byte-swapping, that's generally the codec's job. I can't tell much else without seeing it, which doesn't seem likely to happen, confidential and all that Good luck.

Hi guys

Here there is an example of audio data
After having tried a lot any form of audio codec I need to ask your help

https://www.dropbox.com/s/1l041xgxb1yucd9/input

It should be encoded in a-law but I cannot get anything useful out of it. I used both sox and audacity

Can you please help me to convert it

Thanks

a-law what, though?

This audio come out from a voice logger. The logger apparently (not totally sure) was set to compress the data in a-law. So there could be two solutions. First, the logger was not properly set (very possible) and it is not a-law. Last this data should be manipulated first and then played .... any help??

FYI this audio file should be one among the following:

G711 a-law, u-law, mu-law, g726, g729, adpcm32, adpcm16, g723, and similar. The audio is telephony audio data

In Audacity, I think can open that with project -> import raw data, telling it the type is a-law and the sample rate is 8000hz. It might be music of some sort, the audio quality isn't good enough to tell.

Trying to open it any other way just gets me near-noise, so, I guess it is a-law, or close to.

It refuses to even try as g726/g729/etc, but if the headers were stripped off, that might not mean anything.

I have tried to open it with audacity (raw data) manyyyyyyyy manyyyyy times. However, I cannot get anything except noise. I have already listened at this data using its logger, and its quality is clear enough. However, I do not have the logger anymore and the only way to open the data is by converting it (unfortunately). How do you think I should process this audio data further?