Recent content by arivel

Hi everyone. I'd like to know what limitations and advantages FireWire 400 has over USB 2. If I decide to buy a sound card with this port, what compatibility issues might I encounter? Its primary use is for measurements, but I'm not averse to other secondary uses, such as audio playback through...

I did it. I used flexASIO instead of ASIO4all because the latter conflicted with the original ASIO driver of e-mu0404. in the measurement graph you can see three SPL responses. the one in blue is the response without any type of EQ applied. the one in green is a test that I wanted to do to see...

why it works well on win7

update . I managed to get sweep wav to work with VLC together with REW but the measurement stops and freezes when it reaches 4% exactly like before. I installed asio4all v2 and also hi-fi asio bridge. This time the signal is reproduced correctly by the speaker but the microphone does not record...

@sm52 I can't use java because I need asio to make e-mu 0404 work. @John Mulcahy at this point I don't understand anything anymore and my head is in a mess. let's try to take it one step at a time, can you please explain to me who or what has to play the wav file created by the REW generator...

let's see if I understood correctly. are you saying that you have to load the sweep file on REW and then play the same file with a player such as VLC or others of this type?. if this is what you have to do, in my case it doesn't work because REW takes possession of the output becoming its sole...

hi . so why nothing comes out of the speaker ?. i also tried to change the input thinking it was a mistake in selecting the input for the microphone and output for the power amplifier instead nothing changes . thanks anyway for the answers .

hi . there are two timing references .the first is that of the sweep generator (sweep A) the second is that of the measurement (sweep B) but in this case it is disabled . so in sweep A what value should I insert ?

yes exactly. I tried both with a REW generated measurement sweep file (wav) and also with third party sweep files played with VLC. What do you mean by feeling the time reference? . if you mean the speaker playing, no, I don't hear anything . if I have REW do the sweep instead, it works

I also tried to play a sweep file using VLC but nothing happens either

hello everyone . I can't get the sweep to work after creating the wav file with REW. I want to pass the sweep through the AQUA-controlled Equalizer APO in order to apply EQ in real time and get a flat SPL response that I can check via a graph created by REW. I tried changing the timing value but...

I have the possibility to buy used sound cards at a very low price (saffire, steimberg, ultralite etc.) but I have to choose between USB2 or FireWire 400. They are not recent because they are devices that are about 10 years old but even the emu0404 that I already have is not young. It remains to...

It seems that the box you propose uses the power amplifier and this is dangerous because it could burn the inputs of the sound card. I instead prefer to use the headphone output and be more relaxed.

hi. i solved the problem on the impedance measurement but after this i have to face another problem. every time i switch from the impedance measurement via headphone output-resistor to the SPL measurement in frequency via power amplifier, i have to change the circuit. instead of building the box...

hello everyone. I created the RIG to make the impedance measurement. I need this to subsequently obtain the small-thiele parameters via the known volume method. Evidently I must have done something wrong. I made two measurements, one of these was made before the three calibrations, the other...