GES and audiodynamic

[David Ing]

I forgot the link that shows how "audiodynamic" would compress the dynamic
range:
https://en.wikipedia.org/wiki/Dynamic_range_compression#/media/File:Compression_knee.svg

On Wed, Dec 2, 2020 at 7:59 PM David Ing <ding at panopto.com> wrote:

> Thanks.  I have a followup question (below).
>
> I want to increase the audio signal gain (a.k.a. volume), but I need to
> guard against clipping the waveform (when it gets up-scaled past the
> dynamic range).  So I should probably avoid the GESAudioSource "volume" [1].
>
> *Question:*  Do you think the following approach would work instead?
>
> Create 2 GESEffects (in this order).
>
>    1. Use GESEffect "audiodynamic" to compress the dynamic range of the
>    audio signal as shown here.
>    2. Use GESEffect "volume" to make the signal louder.
>
>
> [1]
> https://gstreamer.freedesktop.org/documentation/gst-editing-services/gesaudiosource.html?gi-language=c
>
> On Wed, Dec 2, 2020 at 7:21 PM Thibault Saunier <tsaunier at gnome.org>
> wrote:
>
>> Hello,
>>
>> You can use that element as an effect[0]  as any other filter.
>>
>>
>> Br,
>>
>> - Thibault
>>
>> [0]
>> https://gstreamer.freedesktop.org/documentation/gst-editing-services/geseffect.html?gi-language=c#GESEffect
>>
>> Le mer. 2 déc. 2020 à 23:21, David Ing <ding at panopto.com> a écrit :
>>
>>> I am using GES to compose meeting-style and lecture-style content.  I am
>>> hoping to make speech easier to hear and understand by applying a dynamic
>>> audio filter.
>>>
>>> Is it possible to use the "audiodynamic" filter to modify the audio
>>> signal coming from a GESClip?  Does GES support that?
>>>
>>> I am using the C-language API for GES.
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
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>>
>
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