MUMBLE ECHO 32 BIT

Mumble's signal path is partly 16 bit and partlyįloat, so remember to select 32 bit float if you move the tap points to some float part of the Mumble audio path.

Encoding is Signed 16 bit PCM in the default tap point (i.e.

Since there's no metadata, Audacity will ask you what's in those files:

To open the raw files, you can use Audacity. This makes the dumping code as simple as possible, and you also don't have to change the header every time you tap a point with a different sample These files contain the raw PCM streams that have been sampled. Wizard clears your files, terminate Mumble with Ctrl-C at any moment and the files won't be erased. If you find it difficult to get the data you want, such as because closing the audio Reinstantiated, such as when going though the audio wizard. Also, those files are overwritten whenever the AudioInput class is Please note that if you run Mumble again, those files will be overwritten. Like playing the same video or speaking the same phrase, so as to compare results.Īfter closing Mumble, there should be 3 new files in the directory you launched it from: It's also best to make reproducible tests, Happens only after some time or occurs at random, there's no need to accumulate gigabytes of dumped audio. It's usually good enough to just run it for 10/20 seconds and then quit.

Then log into a server as usual, and start using Mumble. You'll need to run Mumble from the command line, and the directory from where you run it will be where the dumped files will be written.

MUMBLE ECHO HOW TO

To debug some C++ code, you should not have problems moving a write() to an ofstream here and there should you need to, right? How to use -dump-input-streams It a bit like the digital equivalent of probing with an oscilloscope the signal path of an analog audio gear.Īs the option was introduced to debug the echo canceller, the default tap points are at the input and output of that algorithm, but if you are going Mumble does quite a bit of signal processing on the raw microphone input, so if something breaks it may not be immediately apparent where it breaks.įor this reason, the -dump-input-streams option was added, to help tap into various parts of the DSP chain, and find where the issue is.

Mumble echo