No changes as far as I know. Use pconvolve all the time, mostly in  
realtime. What is the ksmps value?

Victor
On 1 May 2011, at 23:54, Alex Weiss wrote:

> Hi group
>
> I just (finally) downloaded csound 5.13, and I was wondering if  
> there were any changes to pconvolve in this version. I am trying to  
> convolve a 30s sound sample with a 10s impulse response; it's been 3  
> hours and my machine is still rendering. Now, I used to do things  
> like that with csound 5.12 and older versions, so I know that it  
> takes some time. But it never took even close to this long! Any  
> suggestions or pointers what could be wrong here?
>
> Thanks,
>
> Alex

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie





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Forgive my ignorance, but what is a denormals issue? Also, are you running from the terminal or are you using a front-end?

On Mon, May 2, 2011 at 2:57 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

In fact, the size of the IR does not seem to matter too much; I just used another stereo file from my disk, that is 30 s and it is still running in RT.

Make sure this is not a denormals issue.

Victor

On 2 May 2011, at 10:47, Alex Weiss wrote:

Seriously? In that case something must be _seriously_ wrong with my system. Again, it took me between 1 and 3 hours (several tries) to convolve a sample of 30 secs with an IR of 10 secs. And I'm on a fairly new MBP...

Any ideas where/how I could start troubleshooting?

On Mon, May 2, 2011 at 2:43 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Around 10 secs

Victor

On 2 May 2011, at 10:40, Alex Weiss wrote:

Thanks for letting me know. I guess it's a problem on my end then. How long are your IRs usually when you perform convolution in realtime?

Alex

On Mon, May 2, 2011 at 2:37 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Well, I tested pconvolve and it ran in realtime as usual (with ksmps=10).

Victor

On 2 May 2011, at 00:36, Alex Weiss wrote:

ksmps is set to 100 right now, and sr is 48000. Strange...

On Sun, May 1, 2011 at 4:00 PM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

No changes as far as I know. Use pconvolve all the time, mostly in realtime. What is the ksmps value?

Victor

On 1 May 2011, at 23:54, Alex Weiss wrote:

Hi group

I just (finally) downloaded csound 5.13, and I was wondering if there were any changes to pconvolve in this version. I am trying to convolve a 30s sound sample with a 10s impulse response; it's been 3 hours and my machine is still rendering. Now, I used to do things like that with csound 5.12 and older versions, so I know that it takes some time. But it never took even close to this long! Any suggestions or pointers what could be wrong here?

Thanks,

Alex

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie





Send bugs reports to the Sourceforge bug tracker
          https://sourceforge.net/tracker/?group_id=81968&atid=564599
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Yes I had to deal with that too at some point. Check this:

http://csound.1045644.n5.nabble.com/normalization-issue-and-f-sig-td1121983.html

P


On 02/05/2011 11:12, Alex Weiss wrote:

Forgive my ignorance, but what is a denormals issue? Also, are you running from the terminal or are you using a front-end?

On Mon, May 2, 2011 at 2:57 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

In fact, the size of the IR does not seem to matter too much; I just used another stereo file from my disk, that is 30 s and it is still running in RT.

Make sure this is not a denormals issue.

Victor

On 2 May 2011, at 10:47, Alex Weiss wrote:

Seriously? In that case something must be _seriously_ wrong with my system. Again, it took me between 1 and 3 hours (several tries) to convolve a sample of 30 secs with an IR of 10 secs. And I'm on a fairly new MBP...

Any ideas where/how I could start troubleshooting?

On Mon, May 2, 2011 at 2:43 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Around 10 secs

Victor

On 2 May 2011, at 10:40, Alex Weiss wrote:

Thanks for letting me know. I guess it's a problem on my end then. How long are your IRs usually when you perform convolution in realtime?

Alex

On Mon, May 2, 2011 at 2:37 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Well, I tested pconvolve and it ran in realtime as usual (with ksmps=10).

Victor

On 2 May 2011, at 00:36, Alex Weiss wrote:

ksmps is set to 100 right now, and sr is 48000. Strange...

On Sun, May 1, 2011 at 4:00 PM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

No changes as far as I know. Use pconvolve all the time, mostly in realtime. What is the ksmps value?

Victor

On 1 May 2011, at 23:54, Alex Weiss wrote:

Hi group

I just (finally) downloaded csound 5.13, and I was wondering if there were any changes to pconvolve in this version. I am trying to convolve a 30s sound sample with a 10s impulse response; it's been 3 hours and my machine is still rendering. Now, I used to do things like that with csound 5.12 and older versions, so I know that it takes some time. But it never took even close to this long! Any suggestions or pointers what could be wrong here?

Thanks,

Alex

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie





Send bugs reports to the Sourceforge bug tracker
          https://sourceforge.net/tracker/?group_id=81968&atid=564599
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Thanks, that's very interesting. But how do I avoid denormals in my case? I don't have access to the intermediate computations of pconvolve... 

Sent from my iPhone

On May 2, 2011, at 3:17 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

Yes I had to deal with that too at some point. Check this:

http://csound.1045644.n5.nabble.com/normalization-issue-and-f-sig-td1121983.html

P


On 02/05/2011 11:12, Alex Weiss wrote:

Forgive my ignorance, but what is a denormals issue? Also, are you running from the terminal or are you using a front-end?

On Mon, May 2, 2011 at 2:57 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

In fact, the size of the IR does not seem to matter too much; I just used another stereo file from my disk, that is 30 s and it is still running in RT.

Make sure this is not a denormals issue.

Victor

On 2 May 2011, at 10:47, Alex Weiss wrote:

Seriously? In that case something must be _seriously_ wrong with my system. Again, it took me between 1 and 3 hours (several tries) to convolve a sample of 30 secs with an IR of 10 secs. And I'm on a fairly new MBP...

Any ideas where/how I could start troubleshooting?

On Mon, May 2, 2011 at 2:43 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Around 10 secs

Victor

On 2 May 2011, at 10:40, Alex Weiss wrote:

Thanks for letting me know. I guess it's a problem on my end then. How long are your IRs usually when you perform convolution in realtime?

Alex

On Mon, May 2, 2011 at 2:37 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Well, I tested pconvolve and it ran in realtime as usual (with ksmps=10).

Victor

On 2 May 2011, at 00:36, Alex Weiss wrote:

ksmps is set to 100 right now, and sr is 48000. Strange...

On Sun, May 1, 2011 at 4:00 PM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

No changes as far as I know. Use pconvolve all the time, mostly in realtime. What is the ksmps value?

Victor

On 1 May 2011, at 23:54, Alex Weiss wrote:

Hi group

I just (finally) downloaded csound 5.13, and I was wondering if there were any changes to pconvolve in this version. I am trying to convolve a 30s sound sample with a 10s impulse response; it's been 3 hours and my machine is still rendering. Now, I used to do things like that with csound 5.12 and older versions, so I know that it takes some time. But it never took even close to this long! Any suggestions or pointers what could be wrong here?

Thanks,

Alex

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie





Send bugs reports to the Sourceforge bug tracker
          https://sourceforge.net/tracker/?group_id=81968&atid=564599
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

The real solution is to use an AMD processor.........


> Hello,
>
> You can try using the denorm opcode on your input sound. I am not sure
> if it will help but worth trying.
>
> Best,
>
> Peiman
>
> On 02/05/2011 11:37, Alex Weiss wrote:
>> Thanks, that's very interesting. But how do I avoid denormals in my
>> case? I don't have access to the intermediate computations of
>> pconvolve...
>>
>> Sent from my iPhone
>>
>> On May 2, 2011, at 3:17 AM, peiman khosravi > > wrote:
>>
>>> Yes I had to deal with that too at some point. Check this:
>>>
>>> http://csound.1045644.n5.nabble.com/normalization-issue-and-f-sig-td1121983.html
>>>
>>> P
>>>
>>>
>>> On 02/05/2011 11:12, Alex Weiss wrote:
>>>> Forgive my ignorance, but what is a denormals issue? Also, are you
>>>> running from the terminal or are you using a front-end?
>>>>
>>>> On Mon, May 2, 2011 at 2:57 AM, Victor Lazzarini
>>>> > wrote:
>>>>
>>>>     In fact, the size of the IR does not seem to matter too much; I
>>>>     just used another stereo file from my disk, that is 30 s and it
>>>>     is still running in RT.
>>>>
>>>>     Make sure this is not a denormals issue.
>>>>
>>>>     Victor
>>>>
>>>>     On 2 May 2011, at 10:47, Alex Weiss wrote:
>>>>
>>>>>     Seriously? In that case something must be _seriously_ wrong
>>>>>     with my system. Again, it took me between 1 and 3 hours
>>>>>     (several tries) to convolve a sample of 30 secs with an IR of
>>>>>     10 secs. And I'm on a fairly new MBP...
>>>>>     Any ideas where/how I could start troubleshooting?
>>>>>
>>>>>     On Mon, May 2, 2011 at 2:43 AM, Victor Lazzarini
>>>>>     >
>>>>> wrote:
>>>>>
>>>>>         Around 10 secs
>>>>>
>>>>>         Victor
>>>>>
>>>>>         On 2 May 2011, at 10:40, Alex Weiss wrote:
>>>>>
>>>>>>         Thanks for letting me know. I guess it's a problem on my
>>>>>>         end then. How long are your IRs usually when you perform
>>>>>>         convolution in realtime?
>>>>>>
>>>>>>         Alex
>>>>>>
>>>>>>         On Mon, May 2, 2011 at 2:37 AM, Victor Lazzarini
>>>>>>         >>>>>         > wrote:
>>>>>>
>>>>>>             Well, I tested pconvolve and it ran in realtime as
>>>>>>             usual (with ksmps=10).
>>>>>>
>>>>>>             Victor
>>>>>>
>>>>>>             On 2 May 2011, at 00:36, Alex Weiss wrote:
>>>>>>
>>>>>>>             ksmps is set to 100 right now, and sr is 48000.
>>>>>>>             Strange...
>>>>>>>
>>>>>>>             On Sun, May 1, 2011 at 4:00 PM, Victor Lazzarini
>>>>>>>             >>>>>>             > wrote:
>>>>>>>
>>>>>>>                 No changes as far as I know. Use pconvolve all
>>>>>>>                 the time, mostly in realtime. What is the ksmps
>>>>>>>                 value?
>>>>>>>
>>>>>>>                 Victor
>>>>>>>
>>>>>>>                 On 1 May 2011, at 23:54, Alex Weiss wrote:
>>>>>>>
>>>>>>>                     Hi group
>>>>>>>
>>>>>>>                     I just (finally) downloaded csound 5.13, and
>>>>>>>                     I was wondering if there were any changes to
>>>>>>>                     pconvolve in this version. I am trying to
>>>>>>>                     convolve a 30s sound sample with a 10s
>>>>>>>                     impulse response; it's been 3 hours and my
>>>>>>>                     machine is still rendering. Now, I used to do
>>>>>>>                     things like that with csound 5.12 and older
>>>>>>>                     versions, so I know that it takes some time.
>>>>>>>                     But it never took even close to this long!
>>>>>>>                     Any suggestions or pointers what could be
>>>>>>>                     wrong here?
>>>>>>>
>>>>>>>                     Thanks,
>>>>>>>
>>>>>>>                     Alex
>>>>>>>
>>>>>>>
>>>>>>>                 Dr Victor Lazzarini
>>>>>>>                 Senior Lecturer
>>>>>>>                 Dept. of Music
>>>>>>>                 NUI Maynooth Ireland
>>>>>>>                 tel.: +353 1 708 3545 
>>>>>>>                 Victor dot Lazzarini AT nuim dot ie
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>                 Send bugs reports to the Sourceforge bug tracker
>>>>>>>                 https://sourceforge.net/tracker/?group_id=81968&atid=564599
>>>>>>>                 
>>>>>>>                 Discussions of bugs and features can be posted here
>>>>>>>                 To unsubscribe, send email sympa@lists.bath.ac.uk
>>>>>>>                  with body
>>>>>>>                 "unsubscribe csound"
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>             Dr Victor Lazzarini
>>>>>>             Senior Lecturer
>>>>>>             Dept. of Music
>>>>>>             NUI Maynooth Ireland
>>>>>>             tel.:+353 1 708 3545 
>>>>>>             Victor dot Lazzarini AT nuim dot ie
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>         Dr Victor Lazzarini
>>>>>         Senior Lecturer
>>>>>         Dept. of Music
>>>>>         NUI Maynooth Ireland
>>>>>         tel.:+353 1 708 3545 
>>>>>         Victor dot Lazzarini AT nuim dot ie
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>     Dr Victor Lazzarini
>>>>     Senior Lecturer
>>>>     Dept. of Music
>>>>     NUI Maynooth Ireland
>>>>     tel.:+353 1 708 3545 
>>>>     Victor dot Lazzarini AT nuim dot ie
>>>>
>>>>
>>>>
>>>>
>>>
>
>
> Send bugs reports to the Sourceforge bug tracker
>             https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>
>




Send bugs reports to the Sourceforge bug tracker
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To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Thanks, that's very interesting. But how do I avoid denormals in my case? I don't have access to the intermediate computations of pconvolve... 

Sent from my iPhone

On May 2, 2011, at 3:17 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

Yes I had to deal with that too at some point. Check this:

http://csound.1045644.n5.nabble.com/normalization-issue-and-f-sig-td1121983.html

P


On 02/05/2011 11:12, Alex Weiss wrote:

Forgive my ignorance, but what is a denormals issue? Also, are you running from the terminal or are you using a front-end?

On Mon, May 2, 2011 at 2:57 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

In fact, the size of the IR does not seem to matter too much; I just used another stereo file from my disk, that is 30 s and it is still running in RT.

Make sure this is not a denormals issue.

Victor

On 2 May 2011, at 10:47, Alex Weiss wrote:

Seriously? In that case something must be _seriously_ wrong with my system. Again, it took me between 1 and 3 hours (several tries) to convolve a sample of 30 secs with an IR of 10 secs. And I'm on a fairly new MBP...

Any ideas where/how I could start troubleshooting?

On Mon, May 2, 2011 at 2:43 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Around 10 secs

Victor

On 2 May 2011, at 10:40, Alex Weiss wrote:

Thanks for letting me know. I guess it's a problem on my end then. How long are your IRs usually when you perform convolution in realtime?

Alex

On Mon, May 2, 2011 at 2:37 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Well, I tested pconvolve and it ran in realtime as usual (with ksmps=10).

Victor

On 2 May 2011, at 00:36, Alex Weiss wrote:

ksmps is set to 100 right now, and sr is 48000. Strange...

On Sun, May 1, 2011 at 4:00 PM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

No changes as far as I know. Use pconvolve all the time, mostly in realtime. What is the ksmps value?

Victor

On 1 May 2011, at 23:54, Alex Weiss wrote:

Hi group

I just (finally) downloaded csound 5.13, and I was wondering if there were any changes to pconvolve in this version. I am trying to convolve a 30s sound sample with a 10s impulse response; it's been 3 hours and my machine is still rendering. Now, I used to do things like that with csound 5.12 and older versions, so I know that it takes some time. But it never took even close to this long! Any suggestions or pointers what could be wrong here?

Thanks,

Alex

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie





Send bugs reports to the Sourceforge bug tracker
          https://sourceforge.net/tracker/?group_id=81968&atid=564599
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

probably it's to do with partition size.

On 2 May 2011, at 19:59, Alex Weiss wrote:

Hm, it must have something to do with pconvolve itself. I tried denorming pretty much every signal I had in the chain, with no luck. Just out of curiosity, I tried ftconv instead of pconvolve. And voila: immediate real-time output.

Very, very strange...

On Mon, May 2, 2011 at 3:57 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

Also maybe make sure that your impulse response file has no silences in it. Maybe pass it through the denorm opcode, bounce it to disk and then use it. Just a guess though.

P

On 02/05/2011 11:37, Alex Weiss wrote:

Thanks, that's very interesting. But how do I avoid denormals in my case? I don't have access to the intermediate computations of pconvolve... 

Sent from my iPhone

On May 2, 2011, at 3:17 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:

Yes I had to deal with that too at some point. Check this:

http://csound.1045644.n5.nabble.com/normalization-issue-and-f-sig-td1121983.html

P


On 02/05/2011 11:12, Alex Weiss wrote:

Forgive my ignorance, but what is a denormals issue? Also, are you running from the terminal or are you using a front-end?

On Mon, May 2, 2011 at 2:57 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

In fact, the size of the IR does not seem to matter too much; I just used another stereo file from my disk, that is 30 s and it is still running in RT.

Make sure this is not a denormals issue.

Victor

On 2 May 2011, at 10:47, Alex Weiss wrote:

Seriously? In that case something must be _seriously_ wrong with my system. Again, it took me between 1 and 3 hours (several tries) to convolve a sample of 30 secs with an IR of 10 secs. And I'm on a fairly new MBP...

Any ideas where/how I could start troubleshooting?

On Mon, May 2, 2011 at 2:43 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Around 10 secs

Victor

On 2 May 2011, at 10:40, Alex Weiss wrote:

Thanks for letting me know. I guess it's a problem on my end then. How long are your IRs usually when you perform convolution in realtime?

Alex

On Mon, May 2, 2011 at 2:37 AM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

Well, I tested pconvolve and it ran in realtime as usual (with ksmps=10).

Victor

On 2 May 2011, at 00:36, Alex Weiss wrote:

ksmps is set to 100 right now, and sr is 48000. Strange...

On Sun, May 1, 2011 at 4:00 PM, Victor Lazzarini <Victor.Lazzarini@nuim.ie> wrote:

No changes as far as I know. Use pconvolve all the time, mostly in realtime. What is the ksmps value?

Victor

On 1 May 2011, at 23:54, Alex Weiss wrote:

Hi group

I just (finally) downloaded csound 5.13, and I was wondering if there were any changes to pconvolve in this version. I am trying to convolve a 30s sound sample with a 10s impulse response; it's been 3 hours and my machine is still rendering. Now, I used to do things like that with csound 5.12 and older versions, so I know that it takes some time. But it never took even close to this long! Any suggestions or pointers what could be wrong here?

Thanks,

Alex

Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie





Send bugs reports to the Sourceforge bug tracker
          https://sourceforge.net/tracker/?group_id=81968&atid=564599
Discussions of bugs and features can be posted here
To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Dr Victor Lazzarini

Senior Lecturer

Dept. of Music

NUI Maynooth Ireland

tel.: +353 1 708 3545

Victor dot Lazzarini AT nuim dot ie

Can you post your files+csd? I'll be happy to test them.

P

On 3 May 2011 12:23, Victor Lazzarini  wrote:
> It changes the delay and cost of computation only (provided the algorithm is
> implemented properly, which I take it is)
> Victor
> On 3 May 2011, at 11:44, Alex Weiss wrote:
>
> Does the partition size have any effect on the quality of the sound, or does
> it only change the delay?
> Alex
>
>
> On May 2, 2011, at 12:40 PM, Victor Lazzarini 
> wrote:
>
> probably it's to do with partition size.
> On 2 May 2011, at 19:59, Alex Weiss wrote:
>
> Hm, it must have something to do with pconvolve itself. I tried denorming
> pretty much every signal I had in the chain, with no luck. Just out of
> curiosity, I tried ftconv instead of pconvolve. And voila: immediate
> real-time output.
> Very, very strange...
>
> On Mon, May 2, 2011 at 3:57 AM, peiman khosravi 
> wrote:
>>
>> Also maybe make sure that your impulse response file has no silences in
>> it. Maybe pass it through the denorm opcode, bounce it to disk and then use
>> it. Just a guess though.
>>
>> P
>>
>> On 02/05/2011 11:37, Alex Weiss wrote:
>>
>> Thanks, that's very interesting. But how do I avoid denormals in my case?
>> I don't have access to the intermediate computations of pconvolve...
>>
>> Sent from my iPhone
>> On May 2, 2011, at 3:17 AM, peiman khosravi 
>> wrote:
>>
>> Yes I had to deal with that too at some point. Check this:
>>
>>
>> http://csound.1045644.n5.nabble.com/normalization-issue-and-f-sig-td1121983.html
>>
>> P
>>
>>
>> On 02/05/2011 11:12, Alex Weiss wrote:
>>
>> Forgive my ignorance, but what is a denormals issue? Also, are you running
>> from the terminal or are you using a front-end?
>>
>> On Mon, May 2, 2011 at 2:57 AM, Victor Lazzarini
>>  wrote:
>>>
>>> In fact, the size of the IR does not seem to matter too much; I just used
>>> another stereo file from my disk, that is 30 s and it is still running in
>>> RT.
>>> Make sure this is not a denormals issue.
>>>
>>> Victor
>>> On 2 May 2011, at 10:47, Alex Weiss wrote:
>>>
>>> Seriously? In that case something must be _seriously_ wrong with my
>>> system. Again, it took me between 1 and 3 hours (several tries) to convolve
>>> a sample of 30 secs with an IR of 10 secs. And I'm on a fairly new MBP...
>>> Any ideas where/how I could start troubleshooting?
>>>
>>> On Mon, May 2, 2011 at 2:43 AM, Victor Lazzarini
>>>  wrote:
>>>>
>>>> Around 10 secs
>>>> Victor
>>>> On 2 May 2011, at 10:40, Alex Weiss wrote:
>>>>
>>>> Thanks for letting me know. I guess it's a problem on my end then. How
>>>> long are your IRs usually when you perform convolution in realtime?
>>>> Alex
>>>>
>>>> On Mon, May 2, 2011 at 2:37 AM, Victor Lazzarini
>>>>  wrote:
>>>>>
>>>>> Well, I tested pconvolve and it ran in realtime as usual (with
>>>>> ksmps=10).
>>>>> Victor
>>>>> On 2 May 2011, at 00:36, Alex Weiss wrote:
>>>>>
>>>>> ksmps is set to 100 right now, and sr is 48000. Strange...
>>>>>
>>>>> On Sun, May 1, 2011 at 4:00 PM, Victor Lazzarini
>>>>>  wrote:
>>>>>>
>>>>>> No changes as far as I know. Use pconvolve all the time, mostly in
>>>>>> realtime. What is the ksmps value?
>>>>>>
>>>>>> Victor
>>>>>> On 1 May 2011, at 23:54, Alex Weiss wrote:
>>>>>>
>>>>>>> Hi group
>>>>>>>
>>>>>>> I just (finally) downloaded csound 5.13, and I was wondering if there
>>>>>>> were any changes to pconvolve in this version. I am trying to convolve a 30s
>>>>>>> sound sample with a 10s impulse response; it's been 3 hours and my machine
>>>>>>> is still rendering. Now, I used to do things like that with csound 5.12 and
>>>>>>> older versions, so I know that it takes some time. But it never took even
>>>>>>> close to this long! Any suggestions or pointers what could be wrong here?
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Alex
>>>>>>
>>>>>> Dr Victor Lazzarini
>>>>>> Senior Lecturer
>>>>>> Dept. of Music
>>>>>> NUI Maynooth Ireland
>>>>>> tel.: +353 1 708 3545
>>>>>> Victor dot Lazzarini AT nuim dot ie
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Send bugs reports to the Sourceforge bug tracker
>>>>>>           https://sourceforge.net/tracker/?group_id=81968&atid=564599
>>>>>> Discussions of bugs and features can be posted here
>>>>>> To unsubscribe, send email sympa@lists.bath.ac.uk with body
>>>>>> "unsubscribe csound"
>>>>>>
>>>>>
>>>>>
>>>>> Dr Victor Lazzarini
>>>>> Senior Lecturer
>>>>> Dept. of Music
>>>>> NUI Maynooth Ireland
>>>>> tel.: +353 1 708 3545
>>>>> Victor dot Lazzarini AT nuim dot ie
>>>>>
>>>>>
>>>>
>>>>
>>>> Dr Victor Lazzarini
>>>> Senior Lecturer
>>>> Dept. of Music
>>>> NUI Maynooth Ireland
>>>> tel.: +353 1 708 3545
>>>> Victor dot Lazzarini AT nuim dot ie
>>>>
>>>>
>>>
>>>
>>> Dr Victor Lazzarini
>>> Senior Lecturer
>>> Dept. of Music
>>> NUI Maynooth Ireland
>>> tel.: +353 1 708 3545
>>> Victor dot Lazzarini AT nuim dot ie
>>>
>>>
>>
>>
>>
>
>
> Dr Victor Lazzarini
> Senior Lecturer
> Dept. of Music
> NUI Maynooth Ireland
> tel.: +353 1 708 3545
> Victor dot Lazzarini AT nuim dot ie
>
>
>
> Dr Victor Lazzarini
> Senior Lecturer
> Dept. of Music
> NUI Maynooth Ireland
> tel.: +353 1 708 3545
> Victor dot Lazzarini AT nuim dot ie
>
>
>


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