-n is an option to stop writing the main audio out to disk.

On 10 Oct 2012, at 13:48, c.m.bryan wrote:

> Hi all,
> 
> First of all, apologies for taking any attention away from Csound6 development! :)
> 
> As I mentioned before, I'm hoping that the plugins and utilities will be integrated into the csoundandroid library in the future. In the meantime, I'm attempting to find a way to pre-process audio at maximum speed before realtime processing.
> 
> It occurred to me that I could run a non-realtime instance of csound with an instrument that makes use of 'pvsfwrite' to generate the analysis file. This does work-- analysing 10 seconds of audio takes about 7. Better than realtime, but I'm wondering if it can be optimised.
> 
> 1) I wonder if much time is wasted writing the (useless) audio output to disk, and whether anyone knows of a hack to get around this?
> 2) I wonder if there are any ndk compiler options that will speed it up? I'll run some benchmarks with different settings just for fun and let you know if I find anything. I'm not an expert on C compiler flags... yet!
> 
> I'm just working out loud in case someone may be able to chime in with any advice... :)
> 
> -Chris Bryan
> ------------------------------------------------------------------------------
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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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Ah! RTFM, right?? Thanks-- will post benchmarks, in case anyone else
is interested...

-Chris


On 10 October 2012 17:26, Victor Lazzarini  wrote:
> -n is an option to stop writing the main audio out to disk.
>
> On 10 Oct 2012, at 13:48, c.m.bryan wrote:
>
>> Hi all,
>>
>> First of all, apologies for taking any attention away from Csound6 development! :)
>>
>> As I mentioned before, I'm hoping that the plugins and utilities will be integrated into the csoundandroid library in the future. In the meantime, I'm attempting to find a way to pre-process audio at maximum speed before realtime processing.
>>
>> It occurred to me that I could run a non-realtime instance of csound with an instrument that makes use of 'pvsfwrite' to generate the analysis file. This does work-- analysing 10 seconds of audio takes about 7. Better than realtime, but I'm wondering if it can be optimised.
>>
>> 1) I wonder if much time is wasted writing the (useless) audio output to disk, and whether anyone knows of a hack to get around this?
>> 2) I wonder if there are any ndk compiler options that will speed it up? I'll run some benchmarks with different settings just for fun and let you know if I find anything. I'm not an expert on C compiler flags... yet!
>>
>> I'm just working out loud in case someone may be able to chime in with any advice... :)
>>
>> -Chris Bryan
>> ------------------------------------------------------------------------------
>> Don't let slow site performance ruin your business. Deploy New Relic APM
>> Deploy New Relic app performance management and know exactly
>> what is happening inside your Ruby, Python, PHP, Java, and .NET app
>> Try New Relic at no cost today and get our sweet Data Nerd shirt too!
>> http://p.sf.net/sfu/newrelic-dev2dev_______________________________________________
>> Csound-devel mailing list
>> Csound-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/csound-devel
>
> Dr Victor Lazzarini
> Senior Lecturer
> Dept. of Music
> NUI Maynooth Ireland
> tel.: +353 1 708 3545
> Victor dot Lazzarini AT nuim dot ie
>
>
>
>
> ------------------------------------------------------------------------------
> Don't let slow site performance ruin your business. Deploy New Relic APM
> Deploy New Relic app performance management and know exactly
> what is happening inside your Ruby, Python, PHP, Java, and .NET app
> Try New Relic at no cost today and get our sweet Data Nerd shirt too!
> http://p.sf.net/sfu/newrelic-dev2dev
> _______________________________________________
> Csound-devel mailing list
> Csound-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-devel

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