Audio Dropouts with J3

[Ralph @ Rayzoon]

Please send me rzdlog.txt from My Documents\jamstix3 and tell me your OS version, host version and audio driver.

[dancerchris]

BTW. Do you have a minimum host plug-in buffer size. I am currently using a value that is equal to my latency buffer. What do you suggest for JS3?

[Ralph @ Rayzoon]

The log shows you are running at 96 samples latency. Please increase to 128 and see if the dropouts stop.

[netandif_2008]

Yes, I am using 3.0.1.

[...] Personally I would just say that mouse actions cause video actions that create problems with the audio in the form of dropouts or pops. I am using an NVidia video PCIe card and a firewire audio box. I am running total latency cycles of about 10 ms.
[...]
Chris

Hi, i may not be able to help alot here, even thoug i will suggest something. I'm also using a firewire interface, running at 256 buffer size at around 16ms overal latency without any droputs or something in Live (i have another issue with JS, but as for that, no problems).
If i go to 128 buffer size, i have 7.7ms overall latency.
So i honestly think that something with your system is wrong. It's either a problem with your graphics card or your chipset. Especially your mouse issues and hardware acceleration points remind me of some systems with bad chipsets or graphics cards.

NetAndif

[dancerchris]

Hi, i may not be able to help alot here, even thoug i will suggest something. I'm also using a firewire interface, running at 256 buffer size at around 16ms overal latency without any droputs or something in Live (i have another issue with JS, but as for that, no problems).
If i go to 128 buffer size, i have 7.7ms overall latency.
So i honestly think that something with your system is wrong. It's either a problem with your graphics card or your chipset. Especially your mouse issues and hardware acceleration points remind me of some systems with bad chipsets or graphics cards.

NetAndif

NetAndif: I don't quite understand your point. You mention two buffer sizes and two overall latency values. Each hardware driver will provide hardware latency compensation in addition to the 2x the buffer size selected for use. The result is something like:

Latency_total = 2*buffer_samples+hardware_compensation

I don't believe that you can relate my buffer size and latency to your relative values. For example RME interfaces have the lowest hardware compensation in the home studio/semi-pro business and so when selecting the same buffer size they will generally have a lower overall latency. I happen to be using a PreSonus Firepod with relatively poor hardware latency.

Perhaps I don't get what you are getting at.

My point in bringing up the NVidia card and mouse effects was to point out that I had some hardware issues when I upsized my screen to 1920x1080) but I believe that they are worked out. (A google search will reveal all kinds of ASIO audio issues with NVidia cards.) I wanted Ralph to have as much information at his disposal to make some informed evaluations. I know that many supprot issues are on the user end.

[dancerchris]

Ralph I emailed you the results of your suggestion.

[Ralph @ Rayzoon]

Jamstix 3.1 Beta 9 should reduce or eliminate ASIO overloads.