How do pulseaudio and ALSA compare in regard to latency?

Art Hunkins

----- Original Message ----- 
From: "Andres Cabrera" 
To: 
Sent: Monday, September 07, 2009 10:18 PM
Subject: [Csnd] Re: Re: csound on Fedora 11 and rawhide


Won't pulseaudio give unacceptable latency for tamtam?

Cheers,
Andrés

On Mon, Sep 7, 2009 at 8:54 PM, Felipe Sateler  wrote:
> Peter told me that TamTam needs to be rebuilt, but I do not know if that
> is related to the problem you are experiencing.
>
> Can you play sounds through any other PulseAudio application?
>
> On Mon, 2009-09-07 at 20:46 -0400, Art Hunkins wrote:
>> I'm really excited that Csound now seems to be working on 
>> Sugar-on-a-Stick.
>>
>> I'm getting sound written to -odac, but unfortunately am still not 
>> hearing
>> audio. I imagine my problem is my audio setup.
>>
>> My  are:
>> -odac -m0d --expression-opt -b128 -B2048
>>
>> This set of options work fine on the XO-1, which is of course Csound5.08
>> with alsa as default rtaudio.
>>
>> SoaS default is now Pulseaudio, about which I know nothing; my log shows 
>> it
>> is being used, as expected.
>>
>> I noted that there were also "updates" available for pulseaudio and
>> pulseaudio-libs. (I don't believe they were part of Soas Strawberry.) Not
>> knowing whether these are now needed, I installed them as well. Still no
>> audio.
>>
>> FWIW, I'm on my WindowsXP system, which has several audio drivers 
>> installed
>> on it along with a specified (Windows) default. I've no idea if this
>> matters.
>>
>> What am I missing? I assume it's something in .
>>
>> I'm hoping that for purposes of my Sugar activity, that the additional
>> pulseaudio files will not need to be installed. For kids and their 
>> teachers
>> and support people, the less that needs to be done the better.
>>
>> Art Hunkins
>>
>> ----- Original Message -----
>> From: "Peter Robinson" 
>> To: "Art Hunkins" ; "Felipe Sateler" 
>> 
>> Cc: ; "Sugar devel"
>> 
>> Sent: Sunday, September 06, 2009 5:12 PM
>> Subject: csound on Fedora 11 and rawhide
>>
>>
>> > Hi All,
>> >
>> > I think (with the help of Felipe) and after around a million test
>> > recompiles :-) I've finally fixed the issues with the csound python
>> > bindings on Fedora. The build is now in rawhide and fedora-testing for
>> > Fedora 11 as of today. The build that your after is 5.10.1-12. For me
>> > at least it seems to work OK on Fedora 11 rawhide. PulseAudio is set
>> > as the default. I would like to know how it looks to everyone else.
>> >
>> > Cheers,
>> > Peter
>>
>

Badly.
----- Original Message ----- 
From: "Art Hunkins" 
To: 
Sent: Tuesday, September 08, 2009 3:48 AM
Subject: [Csnd] Re: Re: Re: csound on Fedora 11 and rawhide


> How do pulseaudio and ALSA compare in regard to latency?
>
> Art Hunkins
>
> ----- Original Message ----- 
> From: "Andres Cabrera" 
> To: 
> Sent: Monday, September 07, 2009 10:18 PM
> Subject: [Csnd] Re: Re: csound on Fedora 11 and rawhide
>
>
> Won't pulseaudio give unacceptable latency for tamtam?
>
> Cheers,
> Andrés
>
> On Mon, Sep 7, 2009 at 8:54 PM, Felipe Sateler  wrote:
>> Peter told me that TamTam needs to be rebuilt, but I do not know if that
>> is related to the problem you are experiencing.
>>
>> Can you play sounds through any other PulseAudio application?
>>
>> On Mon, 2009-09-07 at 20:46 -0400, Art Hunkins wrote:
>>> I'm really excited that Csound now seems to be working on 
>>> Sugar-on-a-Stick.
>>>
>>> I'm getting sound written to -odac, but unfortunately am still not 
>>> hearing
>>> audio. I imagine my problem is my audio setup.
>>>
>>> My  are:
>>> -odac -m0d --expression-opt -b128 -B2048
>>>
>>> This set of options work fine on the XO-1, which is of course Csound5.08
>>> with alsa as default rtaudio.
>>>
>>> SoaS default is now Pulseaudio, about which I know nothing; my log shows 
>>> it
>>> is being used, as expected.
>>>
>>> I noted that there were also "updates" available for pulseaudio and
>>> pulseaudio-libs. (I don't believe they were part of Soas Strawberry.) 
>>> Not
>>> knowing whether these are now needed, I installed them as well. Still no
>>> audio.
>>>
>>> FWIW, I'm on my WindowsXP system, which has several audio drivers 
>>> installed
>>> on it along with a specified (Windows) default. I've no idea if this
>>> matters.
>>>
>>> What am I missing? I assume it's something in .
>>>
>>> I'm hoping that for purposes of my Sugar activity, that the additional
>>> pulseaudio files will not need to be installed. For kids and their 
>>> teachers
>>> and support people, the less that needs to be done the better.
>>>
>>> Art Hunkins
>>>
>>> ----- Original Message -----
>>> From: "Peter Robinson" 
>>> To: "Art Hunkins" ; "Felipe Sateler" 
>>> 
>>> Cc: ; "Sugar devel"
>>> 
>>> Sent: Sunday, September 06, 2009 5:12 PM
>>> Subject: csound on Fedora 11 and rawhide
>>>
>>>
>>> > Hi All,
>>> >
>>> > I think (with the help of Felipe) and after around a million test
>>> > recompiles :-) I've finally fixed the issues with the csound python
>>> > bindings on Fedora. The build is now in rawhide and fedora-testing for
>>> > Fedora 11 as of today. The build that your after is 5.10.1-12. For me
>>> > at least it seems to work OK on Fedora 11 rawhide. PulseAudio is set
>>> > as the default. I would like to know how it looks to everyone else.
>>> >
>>> > Cheers,
>>> > Peter
>>>
>>
>
>
>
> -- 
>
>
> Andrés
>
>
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