Re: Sync Issues (was Re: External MIDI Sync using OSS/Free)

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Subject: Re: Sync Issues (was Re: External MIDI Sync using OSS/Free)
From: Jaroslav Kysela (perex_AT_suse.cz)
Date: la loka   30 1999 - 14:05:27 EDT

On Sat, 30 Oct 1999, Billy Biggs wrote:

> On Sat, 30 Oct 1999, Jaroslav Kysela wrote:
>
> > On Fri, 29 Oct 1999, Benno Senoner wrote:
> >
> > > > For MIDI I'm using a Roland MPU-IPC-T card. MPU-401.
> > >
> > > Jaroslav do you know if there are similar problems on this card with
> > > too little MIDI TX/RX FIFO size, and/or lack of an IRQ connected to
> > > it ?
> >
> > Yes, the problem is in the MPU-401 hardware specification. This hardware
> > haven't the TX interrupt. Every soundcard with the standard MPU-401
> > emulation has this problem.
>
> What card would you recommend for responsive MIDI then? Or, should I
> not care, and just make sure I code to be as low-latency as possible?

Chipsets with full IRQ based RX & TX:

Trident 4DWave DX or NX
Creative Ensoniq AudioPCI (ES1370,ES1371,ES1373)
Gravis UltraSound

                                                        Jaroslav

-----
Jaroslav Kysela <perex_AT_suse.cz>
SuSE Linux http://www.suse.com
ALSA project http://www.alsa-project.org

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