Re: [music-dsp] dB decrease

[Volkan Ozyilmaz]

Hi,

Thank you for the answers. It helped us.

Regards,


On Thu, Oct 20, 2011 at 2:03 AM, Luke Drummond lukedrumm...@gmail.com wrote:
 Hi Vokan,

 Yes, Chuck is correct.  As far as I am aware, this is the method used
 in professional audio applications.  The audio data is almost always
 converted into a floating point value between -1.0 - +1.0 and then
 multiplied by the constant obtained from chuck's derivation.

 If you use C, here is a simple function for doing what you want
 (WARNING it overwrites the original floating point audio stream).
 Because most systems interleave the channels, this will work for
 multichannel streams, though as can be seen, all channels will receive
 the attenuation/gain

 void gain(float * audioData, int streamLen, float dbGain)
 {
 /*
        if(!audioData)
        {
                fprintf(stderr, void audio track passed\n);
                fprintf(stderr, doing nothing...\n);
                return;
        }

        float gainConstant;
        int i;

 /* calculate gain constant */
        gainConstant = powf(10, dbGain / 20);

 /* apply gain proper */
        for(i = 0; i  streamLen; i++)
        {
                *(audioData+i) = gainConstant * (*(audioData+i));
        }
        return;
 }
 Hope that helps

 Luke

 On 19 October 2011 15:24, Charles Henry czhe...@gmail.com wrote:
 Hi, Vokan

 Yes, it really is that simple.  You probably also want to know how to
 calculate the gain factory (number to multiply by ).

 dB are a logarithmic scale for power--10 dB corresponds to a 10-fold
 increase in power

 The amplitude of your signals is not the same as power.  Power is
 proportional to the amplitude squared.  So, a different factor is used
 when working with amplitude.

 20 dB corresponds to a 10-fold increase in signal amplitude

 So, to calculate your gain factor:

 G = 10 ^ ( X / 20)

 Where X is the number of decibels you want to increase (+dB) or
 decrease (-dB) by.

 Chuck


 On Wed, Oct 19, 2011 at 5:38 AM, Volkan Ozyilmaz vol...@volkoaudio.com 
 wrote:
 Hi,

 I don't know more about dsp and I need to write a dB decrease algorithm.

 Firstly, I thought I don't increase volume and I don't need a special
 algorithm.
 Can I just multiply the values and that's it? For example:

 If I need to decrease volume %10 I just need to multiply it with 0.9,
 I mean all the wave file.

 I am curious if this technique is good or bad? The quality is important for 
 me.
 I don't want to increase the volume, I just need to decrease it.
 With this technique would I lose the quality?

 Regards,


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---
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vol...@volkoaudio.com
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[music-dsp] New License Manager, Keyzy

[Volkan Ozyilmaz]

 Hi Guys,

We had lots of problems in Volko Audio  in the
past for licensing our plugins. There was no affordable and practical
service/product on the market, none of them was right for Volko. Then, I've
created a new service called Keyzy . Keyzy is a very
practical license manager. It creates, deposits and activates serial
numbers for your products. If someone is interested, please freely contact
me or our support system (supp...@keyzy.io). www.keyzy.io

Volkan
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Re: [music-dsp] New License Manager, Keyzy

[Volkan Ozyilmaz]

Thank you for your interest Bastian, will fix the contact issue soon.

On Tue, Feb 20, 2018 at 5:54 PM, Bastian Schnuerle <
bastian.schnue...@silberstein.de> wrote:

> hey volkan,
>
> your pricing is quite high but acceptable compared to the industry
> standard. your website though is faulty. i tried to contact you via email
> from your site but there is no addressant stated once clicked the link.
>
> can you contact me at bast...@axisplugins.com and clarify questions
> regarding the implementation of your code base into commercial products ?
>
> thanks,
> bzt
>
>
> Am 20.02.2018 um 11:17 schrieb Volkan Ozyilmaz:
>
> Hi Guys,
>>
>> We had lots of problems in Volko Audio in the past for licensing our
>> plugins. There was no affordable and practical service/product on the
>> market, none of them was right for Volko. Then, I've created a new service
>> called Keyzy. Keyzy is a very practical license manager. It creates,
>> deposits and activates serial numbers for your products. If someone is
>> interested, please freely contact me or our support system (
>> supp...@keyzy.io). www.keyzy.io
>>
>> Volkan
>>
>> ___
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>>
>
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>
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Re: [music-dsp] ASPiK Plugin Framework is now on GitHub

[Volkan Ozyilmaz]

Congratulations and happy to see that.

Volkan


On Mon, Jun 10, 2019 at 11:01 PM Pirkle, William C 
wrote:

> Hi All
>
> Just a note to let you know that the ASPiK plugin framework, released in
> January 2019, is now hosted on GitHub.
>
> ASPiK (Audio Specific PlugIn Kernel) is open source and 100% free to use
> for both commercial and non-commercial products; ASPiK generates AAX, AU
> and VST3 plugins for MacOS and Windows using a C++ plugin kernel, including
> complete GUI support and a built-in drag and drop GU designer - zero GUI
> coding (unless you are into that kind of thing). It was built from the
> ground up with cross platform audio plugin development in mind.
>
> GitHub:
> https://github.com/willpirkleaudio/ASPiK
>
> Please feel free to fork a copy, collaborate, and perhaps contribute new
> features or issue fixes.
>
> You can find video tutorials and more information at the ASPiK website:
> https://www.aspikplugins.com/
>
> All the best, and happy summer!!!
>
> Will Pirkle
> www.willpirkle.com
>
>
>
>
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Re: [music-dsp] Browser Audio Latency Test

[Volkan Ozyilmaz]

Great test!
I can see the other results and it's also nice but the results are not good
:( Mine was 68ms.


On Tue, Jan 21, 2020 at 6:41 AM Patrick Vlaskovits 
wrote:

> Hi there,
>
> As WebAssembly support improves across browsers, watch native apps migrate
> to the web. In terms of real-time audio functionality, we just launched an
> easy way to test browser audio latency here:
>
> https://superpowered.com/webbrowserlatency
>
> Check it out, see some data and play with it.
>
> Patrick Vlaskovits
> Superpowered Inc.
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