GNU Octave duplex audio

[BlacK_Chicken]

I have used and still use MATAA with Octave 4.2.1 and greater on various Win7 and Win10 machines. It should work.

 

[scott wurcer]

I have used and still use MATAA with Octave 4.2.1 and greater on various Win7 and Win10 machines. It should work.

Working isn't the question, last weekend I was helping someone who recorded a short demo piece at 24/96 (and the file said, actually, 32bit/96K) but was brickwall filtered at 22.05KHz and was 16bit (but it was 96k). Sound stuff under Win gives a lot of folks problems without giving any warnings.

Don't get me wrong lots of things might work but there are some that have gone months and even years under an illusion of working.

 

[davidsrsb]

MATAA on Ubuntu has the problem with Latency. You have to set it to eg 0.1mS in mataa_measure_IR.
The default does not work

 

[mbrennwa]

MATAA on Ubuntu has the problem with Latency. You have to set it to eg 0.1mS in mataa_measure_IR.
The default does not work

Latency is happening "outside" of MATAA, depends on the operating system and audio driver software. Take a look at the mataa_audio_guess_latency function to figure out the latency of your set up.

 

[flexus]

when there seems to be a problem with recording, do you know if its possible to import .frd or other text data in octave/mataa?

 

[mbrennwa]

when there seems to be a problem with recording,

...then you fix it 😀

do you know if its possible to import .frd or other text data in octave/mataa?

Sure, mataa_import_FRD does it. In fact, *.frd files are just an ASCII, so importing to Octave is trivial.

 

[mbrennwa]

i think it had to do with the working directory of octave not finding Testone. i somehow remember that octave could start the scripts.

Then something was wrong with your configuration. Take a look at the manual. And check your set up using the mataa_selftest function.

which version of octave do you recommend?

Anything recent will do. I am usually running 4.0 or 4.2, but I started MATAA development with 2.x.

for me the 16bit limit is not so bad at the moment, maybe in the future someone will start working on the 24bit feature.

Not sure what you're referring to. MATAA+TestTone will do 24 bit out of the box. Or 32 bit.

TestTone might be good enough for me and there is no reason atm to change to PlayRec.

Depends on how you define "good enough". The data quality (sample rate, sample depth) are the same with TestTone or PlayRec. TestTone is a bit slower, because it shuffles data between Octave and the audio hardware by writing/reading to/from files on disk. That's slow, but works very reliably on all kinds of different platforms.

I guess it would be best to stop these off-topic disucssions in this thread. Please either start a new thread about MATAA (let me know!), or go to the MATAA mailing list. Let's focus this thread to the OP question.

 

[flexus]

just found it 🙂 thx