[kdenlive] Speed Filter for Video and Audio

[Nicolas Göddel]

Hi Evert,

I know this option. But this way you only can export a whole clip to audio.
I need an option to export only a part of a clip (a slice) to audio.
If I speed up/down video I mostly want to use only a part of a whole clip not
the whole clip itself.


Am 23.10.2015 um 21:57 schrieb Evert Vorster:
> Hi there, Nicolas.
>
> In the project bin, when you right-click on a clip, the top option on
> the context menu is "extract audio"
>
> Choosing this option extracts a .wav file, which can be edited
> seperately. I use audacity to do audio editing.
> Quite often, though, the audio from the video cameras are terrible and
> it just gets cut altogether.
>
> I hope this helps?
> Kind regards,
> Evert
>
> On 23 October 2015 at 16:38, Nicolas Göddel
> <mailinglists at freakscorner.de> wrote:
>> Hi Simon,
>>
>> as a suggestion one could add some checkboxes to the speed filter which define
>> if pitch should be maintained or not.
>> As I know there are three different audio pitch filters, which could be used for
>> that purpose. I assume there are also time stretch audio filters in the same
>> library which is used for audio pitching.
>>
>> Alternatively it would be nice to be able to split audio from a selected video
>> slice and save that as a new audio file which can be edited externally.
>>
>> BTW: Where can I help developing?
>>
>> Regards,
>> Nicolas
>>
>> Am 23.10.2015 um 13:07 schrieb Simon Eugster:
>>> Hi Nicolas,
>>>
>>> yes, there is certainly a reason; nobody had time to do it yet. Except
>>> for this: Changing speed is not so trivial depending on what result
>>> you expect (i.e. whether you want to maintain pitch or not). Mainly
>>> the resources are just not there.
>>>
>>> Simon
>>>
>>>
>>> 2015-10-11 21:23 GMT+02:00 Nicolas Göddel <mailinglists at freakscorner.de>:
>>>> Hi there,
>>>>
>>>> when do you think will it be possible to speed down/up video and audio at the
>>>> same time. At the moment I somehow extract the audio track of a part of my
>>>> video, open it with audacity, change the speed, save it, and import it to
>>>> Kdenlive again. It's very uintuitive.
>>>> Is there a reason why this is not implemented yet?
>>>>
>>>> Best regards,
>>>> Nicolas Göddel
>>>>
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