I hear a clicking sound that interrups the audio stream of a smooth tone playing. I am testing the sound from the test audio and midi help patch. I tried to play just a regular CD which plays fine from the CD application on Linux so I believe the sound card to be working properly. I am on a Dell laptop with Planet CCRMA Fedora Core install.

This is how I start PD:

<################################################# [root@localhost root]# pd -rt -listdev input devices:

1. ESS Maestro3 PCI (hardware)
2. ESS Maestro3 PCI (plug-in)

output devices:

1. ESS Maestro3 PCI (hardware)
2. ESS Maestro3 PCI (plug-in)

API number 1

no midi input devices found no midi output devices found priority 2 scheduling enabled. memory locking enabled. priority 4 scheduling enabled. memory locking enabled. couldn't open MIDI input device 0 couldn't open MIDI output device 0 opened 0 MIDI input device(s) and 0 MIDI output device(s). Sample width set to 2 bytes ################################################>

The DIO errors button will light up red which I assume is a bad thing?? here is what I got when I clicked the DIO button.

<################################################# audio I/O error history: seconds ago error type 0.08 data late 0.08 data late 0.08 data late 0.08 data late 0.09 data late 0.09 data late 0.09 data late 0.09 data late 0.09 data late 0.09 data late 0.09 data late 0.10 data late 0.10 data late 0.10 data late 0.10 data late 0.10 data late 0.10 data late 0.10 data late 0.11 data late 0.11 data late

audio I/O error history: seconds ago error type 0.10 DAC blocked 0.10 A/D/A sync 0.51 data late 0.51 data late 0.51 data late 0.51 data late 0.52 data late 0.52 data late 0.52 data late 0.52 data late 0.52 data late 0.52 data late 0.52 data late 0.53 data late 0.53 data late 0.53 data late 0.53 data late 0.53 data late 0.53 data late 0.53 data late #############################################>

I read something in CCRMA about tuning the scheduler to run the audio aplication as SCHED_FIFO so it will have a higher priority? I do not know anything about this? I am running PD with the -rt flag and assume that it is running at highest priority and have tested the kernel for lowlatency by:

<################################################ [root@localhost /]# cat /proc/sys/kernel/lowlatency 1 #################################################>

What can I do to to test what is going wrong or to fix this???

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