[PD] Fw: Latency

[Ed Kelly]

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" devicesPlanned

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 ->
>>>> 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
>>>
>>
>>
>>
>> --
>> 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 


      
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