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Re: [fluid-dev] fluidsynth with realtime kernel

From: David Henningsson
Subject: Re: [fluid-dev] fluidsynth with realtime kernel
Date: Mon, 11 Oct 2010 02:51:02 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100922 Thunderbird/3.1.4

On 2010-10-08 23:15, Pedro Lopez-Cabanillas wrote:
Anyway, even if you use the same operating system, kernel version, priority
settings, environment, processor, etc. a critical factor is the audio hardware
device. Professional or good quality audio interfaces typically allow much
smaller buffers, and lower latency as a consequence than cheap/low quality
devices. If your laptop has an HDA sound hardware, it is probably the culprit.

Do you know if there are any specific HDA controllers and/or codecs that work better or worse in this regard? I'd be very interesting to know. My experience differs from yours - on my HDA here, I can run with driver=alsa, 4 x 64 buffers quite stable (as in, if there are xruns, I can't hear them). Something I consider OK, especially given the fact that I don't run any special rt kernel (just Ubuntu's standard one, called "generic"), and haven't done the limits.conf stuff either.

// David

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