Nabble - CCRMA

Re: OT?: Endless increasing pitch: How?

2009-12-17T20:32:00Z

http://en.wikipedia.org/wiki/Shepard_tone

On 12/17/09, meino.cramer@... <meino.cramer@...> wrote:

>
> Hi,
>
> long time ago I had an audio file, which I think it was
> generate via csound, which plays a tone pitch, which /seems/
> to increase endlessly. It was the audible counterpart of an
> optical illusion.
>
> I like to know, how this "trick" was constructed and how I
> can rebuild the effect ?
>
> Thank you very much in advance for your help!
>
> Best regards,
> mcc
>
>
> --
> Please don't send me any Word- or Powerpoint-Attachments
> unless it's absolutely neccessary. - Send simply Text.
> See http://www.gnu.org/philosophy/no-word-attachments.html
> In a world without fences and walls nobody needs gates and windows.
>
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From forum: CCRMA - CMdist

OT?: Endless increasing pitch: How?

2009-12-17T19:41:51Z

Hi,

long time ago I had an audio file, which I think it was
generate via csound, which plays a tone pitch, which /seems/
to increase endlessly. It was the audible counterpart of an
optical illusion.

I like to know, how this "trick" was constructed and how I
can rebuild the effect ?

Thank you very much in advance for your help!

Best regards,
mcc

--
Please don't send me any Word- or Powerpoint-Attachments
unless it's absolutely neccessary. - Send simply Text.
See http://www.gnu.org/philosophy/no-word-attachments.html
In a world without fences and walls nobody needs gates and windows.

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From forum: CCRMA - CMdist

Re: iterating over a hash table

2009-12-16T14:16:23Z

Thanks Bill,

I am eventually going to do entropy rates across high order markov rates
which will get hair. That is why I originally wanted to use a hash-table and
will replace it now that you have added for-each.

Best,

Mike

On 12/16/09 4:43 AM, "Bill Schottstaedt" <bil@...> wrote:

> If you're concerned about speed, it might be faster to use a
> vector instead:

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From forum: CCRMA - CMdist

Re: iterating over a hash table

2009-12-16T12:14:33Z

2009/12/16 Bill Schottstaedt <bil@...>:
>> In the s-7 documentation, it says that a hash-table is a vector of
>> alists and can be iterated over by vector-ref.
>
> oops -- thanks for pointing this out. Now I can't decide whether to
> re-enable vector-ref of a hash-table or provide hash-table-for-each --
> any strong opinions?

hash-table-for-each would be the Schemely way. Overlading vector-ref
would be the CL way. You takes your pick, you get yer choice...

david rush
--
who prefers *Scheme*

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From forum: CCRMA - CMdist

Re: iterating over a hash table

2009-12-16T12:03:04Z

I added hash-table-for-each to s7.

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From forum: CCRMA - CMdist

Re: How does pam.d security settings work?

2009-12-16T10:45:40Z

Hello Fernando

Thanks for your quick reply, based on your advice I have removed all users from the jackuser group, as the users should get access to the rt-scheduler over the wild-card.

Simon

Am 14.12.2009 20:59, schrieb Fernando Lopez-Lezcano:

> On Sun, 2009-12-13 at 09:32 +0100, Simon Lewis wrote:
>
>> This is not a bug request - I would simply like to know how the planet
>> ccrma configuration works.
>>
>> I have installed the planet.rpm from the core repo on Fedora 12
>> (x86-64). The rt-kernel boots without errors or warnings. I can use
>> qjackctl to start jackd in real-time. All-in-all a perfectly working
>> system.
>>
>> I noticed that etc/security/limits.conf was modified - the rtprio
>> settings for jackuser and pulse-rt
>>
> (they were not replaced, they are no longer in that file but
> in /etc/security/limits.d/, I was not aware of the change when I
> released my jack package).
>
>
>> were replaced with the following lines.
>>
>> ## Automatically appended by the Planet CCRMA
>> jack-audio-connection-kit
>> * - rtprio 99
>> * - memlock 4194304
>> * - nice -10
>>
>> How does the wildcard * work?
>>
>> Does this mean that all programs multimedia and non-multimedia can run
>> with rt-prio? When used by any user?
>>
> The "*" means any user can use the rt scheduler. It is not related to
> applications but rather to groups of users. Fedora is more restrictive,
> it requires users to be in a specific group.
>
>
>> What other settings were changed to improve rt-performance?
>>
> If you installed planetccrma-core (or planetccrma-core-PAE) you will
> have the rtirq activated to run on boot. That will reorder the
> priorities of irq's and other processes to optimize performance. That
> should be used with Planet CCRMA's jack package which has the priority
> of jackd also changed to match what rtirq does.
>
>
>> I would be grateful for any feedback to these questions, Simon
>>
> Hope this clarifies things a bit.
> -- Fernando
>
>
>
>

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Nabble - CCRMA

Re: OT?: Endless increasing pitch: How?

OT?: Endless increasing pitch: How?

Re: iterating over a hash table

Re: iterating over a hash table

Re: iterating over a hash table

Re: How does pam.d security settings work?

guile gone

Re: iterating over a hash table

Re: iterating over a hash table

Re: iterating over a hash table

iterating over a hash table

Re: rtirq and suspend

Re: rtirq and suspend

rtirq and suspend

Edirol FA-101--Anyone know of any special constraints--firewire chip-set

Re: Questions that might be able to be added to the FAQs

Re: How does pam.d security settings work?

Re: rezound

Re: rezound

rezound

Questions that might be able to be added to the FAQs

[CfP] European Lisp Symposium 2010

How does pam.d security settings work?

Heads up. Fluidsynth with pulseaudio

Common Music 3.4.0

Re: Real-time kernel wont boot (F12 x64)

fomus release and cm patches

Re: CLM-4 Mac OS 10.6 libclm.so problem

Re: CLM-4 Mac OS 10.6 libclm.so problem

Re: Real-time kernel wont boot (F12 x64)

CLM-4 Mac OS 10.6 libclm.so problem

Re: setting local network

Re: [rt-kernel] dubugging mode?

Fedora 12, real-time kernel and Nvidia : yes we can

setting local network