luxohifi's dashboard

Chris Liscio replied on September 24, 2008 11:38 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

I've not done anything new that affects device correction specifically. I will try and re-test today, though I expect it to work again just as it did for 3.1b1.

Have you tried 3.1b3 on your own yet? Also, what happens now when you do the loopback test with and without correction?

luxohifi replied on September 24, 2008 06:18 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

Ping

luxohifi replied on August 30, 2008 06:20 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

I see you have another build, have you addressed the loopback issue?

luxohifi replied on August 20, 2008 13:40 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

The version has been verified as the latest beta build 3.1b1. What should the corrected graph look like? How can I capture a screen and post it?

Chris Liscio replied on August 14, 2008 13:40 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

Can you verify what version you're running? Let me know what you see in the About box. I'll test it again on my end to be triple-sure this is working. :)

luxohifi replied on August 14, 2008 13:35 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

Chris I am still not able to get auto correction to work with the latest build. Does it work for you or anyone else using the internal MBP card?

Chris Liscio replied on July 02, 2008 15:35 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

This problem should be addressed in the 3.1b1 that I posted today. Check out the latest builds page for more details.

luxohifi replied on June 30, 2008 17:36 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

Chris, is it possible to notify me when this is corrected?

luxohifi replied on June 25, 2008 08:14 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

I will quit wearing out the mini jacks on my new MBP until you advise :)

Chris Liscio replied on June 24, 2008 20:03 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

Hmm. I just double-checked this on my own MBP, and it does appear to be acting strange.

In the past I used to limit device correction to only operate when the input and output devices matched. I have since removed that restriction (since 'built-in output' and 'line-in' don't match on the MBP despite being on the same physical device), but it appears there is now a bug lurking in the correction code that only affects this specific case.

Note that correction works (and has always worked) fine on outboard USB and Firewire devices.

Hopefully I'll be able to get a fix together soon.

luxohifi replied on June 24, 2008 18:00 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

I am using mini plug to RCA adaptors with a cable left on channel 2. Channel 1 is driven by an external mic. The connections on channel 1 must be correct since the speaker measurements are valid with device correction turned off.

Step one of testing the loopback on channel 2 is done with correction turned off and there is a curve similar to the one in the manual. Step 2 is to turn on device correction and that produces a straight line that is basically a blank graph. The loopback cable remains connected.

Now back to channel 1 for mic measuring, I get a jaggy noise graph that increases with frequency. I have to go back and uncheck device correction to get a valid mic measurement.

Chris Liscio replied on June 24, 2008 12:04 to the discussion "Loopback on internal card" in SuperMegaUltraGroovy:

Can you give me a detailed description of how you've set up the loopback and measurement connections?

Are you using minijack -> RCA converters so you can split out the loopback channel from the measurement channel? Also, are you doing this with an external microphone?

More details will help me determine what's going on here.

luxohifi started a conversation in SuperMegaUltraGroovy on June 24, 2008 10:53:

Loopback on internal card

Chris you told me earlier that loopback would now work for the MacBook Pro internal card. I'm using the latest rev but still having trouble. The loopback seems to work on channel 2 in that the before and after results in a dead straight line with correction turned on. The problem is that measurements on channel 1 no longer work unless I turn off device correction. I believe that all channels are connected properly.

luxohifi replied on June 24, 2008 10:43 to the question "Meaning of the Harmonic Distortion plots in FuzzMeasure?" in SuperMegaUltraGroovy:

I was looking for this info also. It should be noted in the manual or app. I would prefer the traces in different colors rather than just darkness of the same color with a legend onscreen.