[PD] Fw: Latency

Fri Sep 17 17:57:55 CEST 2010

My MOTU is not USB. I have firewire (only) version of Ultralite, the hybrid
USB/firewire is recent, very recent.

Additionally, MOTU complicates mapping of features, code of multitrack
driver, and so forth - better understanding is at FFADO - I'm no
expert/nor-even-amateur at this. It is not trivial USB audio driver, its
THEIR driver. Once you get a MOTU you have to use their driver for YOUR
system, and their's no Linux drivers, they don't give a damn (see official
MOTU responses and foruns). Thus, I will never buy MOTU again because
thy maintain a hostile policy against Linux/open source :)  <- personal
choice.

H2 is cool. Just like h4, except If i'm not mistaken it actually is a 4
track recorder (soundcard) while h4 is bogus 4 track, only 2 channels at a
time.... haha.

My H4 was really cheap, so I don't regret it.

best regards,
Pedro

On Fri, Sep 17, 2010 at 4:51 PM, Ed Kelly <morph_2016 at yahoo.co.uk> wrote:

> Trying to change my own subject thread...
>
>
> But this computer is great with Linux, but is the MOTU good on USB?
>
> I'm still searching for an answer other than "good USB audio is still a
> dream on Linux" as I have read on some other threads/forums
>
> Metastudio 4 for Pure Data - coming soon!!
>
>
> ------------------------------
> *From:* Pedro Lopes <pedro.lopes at ist.utl.pt>
> *To:* Bernardo Barros <bernardobarros2 at gmail.com>
> *Cc:* Ed Kelly <morph_2016 at yahoo.co.uk>; PD List <pd-list at iem.at>
> *Sent:* Fri, 17 September, 2010 16:28:15
> *Subject:* Re: [PD] Latency
>
> >some people reported good results with FFADO + MOTU on Linux.
> Not my MOTU :) I've tried FFADO but thanks for the reminder anyway. The
> previous "firmware" MOTUS definitely work on Linux, not Ultralike Mk3 still.
> The latest report (very recent) is [1]
>
> [1] Update, 2 September 2010: audio streaming has been demonstrated on
> some of these G3 interfaces over the past few months, which means jackd can
> be used to get audio into and out of these interfaces under certain
> conditions (when testing this please make sure you're using the most recent
> svn snapshot available - r1882 or later). There is a report that the
> Ultralite Mk3 and the Ultralite hybrid (in firewire mode) are mostly
> working. The 828 Mk3 streams audio for most combinations of optical port
> mode settings (although some are yet to be tested). The Traveler Mk3 streams
> audio at all sample rates so long as the optical ports are turned off. Work
> is continuing on making the optical port support better on the G3 devices
> which have optical ports. ffado-mixer currently does not work with any G3
> models. *The protocol is pretty well understood; I'm hoping to find time
> soon to start adding this to ffado.*
> *
> *
> *I wish I could help them, but my know-how is obviously limited within
> these scopes, I just hope "adding to FFADO" will arrive soon, till then I'll
> manage with H4.*
> *
> *
> *The official status for all mk3 is still:*
> **MOTUMOTU "mark 3" devices <http://www.ffado.org/?q=node/1268>Planned
> On Fri, Sep 17, 2010 at 4:23 PM, Bernardo Barros <
> bernardobarros2 at gmail.com> wrote:
>
>> some people reported good results with FFADO + MOTU on Linux.
>> Check the latest version and report back to us :-)
>>
>> 2010/9/17 Pedro Lopes <pedro.lopes at ist.utl.pt>:
>> > this sh*tty recorder =P
>> > http://www.samsontech.com/products/productpage.cfm?prodid=1901
>> > Works as soundcard, nice (low) latency. I wish I could use my Motu on
>> > Linux... wish. Bad choice for open source, MOTU is hostile.
>> >
>> > On Fri, Sep 17, 2010 at 4:08 PM, Ed Kelly <morph_2016 at yahoo.co.uk>
>> wrote:
>> >>
>> >> H4?
>> >> By whom?
>> >>
>> >> Metastudio 4 for Pure Data - coming soon!!
>> >>
>> >> ________________________________
>> >> From: Pedro Lopes <pedro.lopes at ist.utl.pt>
>> >> To: Ed Kelly <morph_2016 at yahoo.co.uk>
>> >> Cc: PD List <pd-list at iem.at>
>> >> Sent: Fri, 17 September, 2010 16:03:36
>> >> Subject: Re: [PD] Latency
>> >>
>> >> Linux-wise, quick pointers:
>> >> - rt-kernel
>> >> - jack realtime enabled (try lowering latency by manipulating audio
>> buffer
>> >> size and period)
>> >> - pd (startup flags -rt -jack)
>> >> [you should configure jack to run realtime, add audio user to the
>> >> limits.conf, etc.. etc... see the web or UbuntuStudio low latency
>> tutorial,
>> >> nice reading]
>> >> I use H4 audio sound card, native USB audio driver recognized in Linux
>> >> (Ubuntu 9.10 rt) and have really low latency.
>> >>
>> >> On Fri, Sep 17, 2010 at 3:58 PM, Ed Kelly <morph_2016 at yahoo.co.uk>
>> wrote:
>> >>>
>> >>> Hi List,
>> >>>
>> >>> What is the best recipe for low latency, using a laptop with no
>> ieee1394
>> >>> (firewire) and only USB under Windows or Linux?
>> >>>  Metastudio 4 for Pure Data - coming soon!!
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> _______________________________________________
>> >>> Pd-list at iem.at mailing list
>> >>> UNSUBSCRIBE and account-management ->
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>> >>
>> >>
>> >>
>> >> --
>> >> Pedro Lopes (ongoing MSc)
>> >> contact: pedro.lopes at ist.utl.pt
>> >> website: http://web.ist.utl.pt/Pedro.Lopes
>> >>
>> >
>> >
>> >
>> > --
>> > Pedro Lopes (ongoing MSc)
>> > contact: pedro.lopes at ist.utl.pt
>> > website: http://web.ist.utl.pt/Pedro.Lopes
>> >
>> > _______________________________________________
>> > Pd-list at iem.at mailing list
>> > UNSUBSCRIBE and account-management ->
>> > http://lists.puredata.info/listinfo/pd-list
>> >
>> >
>>
>
>
>
> --
> Pedro Lopes (ongoing MSc)
> contact: pedro.lopes at ist.utl.pt
> website: http://web.ist.utl.pt/Pedro.Lopes
>
>
>
> _______________________________________________
> Pd-list at iem.at mailing list
> UNSUBSCRIBE and account-management ->
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>
>

-- 
Pedro Lopes (ongoing MSc)
contact: pedro.lopes at ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes
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