[mythtv-users] Removing laugh tracks from recordings

Brad Fuller bradallenfuller at yahoo.com
Thu May 4 18:39:16 EDT 2006


Brad DerManouelian wrote:
> On May 4, 2006, at 2:12 PM, Brian Wood wrote:
>
>   
>> On May 4, 2006, at 12:04 PM, Anu Mathew wrote:
>>
>>     
>>> No, I was not. It is more like a wish, which many people (I spoke to)
>>> seem to share.
>>>
>>> Years ago, ripping ads was almost impossible, but it is possible
>>> now...
>>>
>>> Hopefully, one day...!! :)
>>>
>>> Thanks..!!
>>>
>>> On 5/4/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
>>>
>>>
>>>       
>> There is equipment available that purports to remove vocal tracks
>> from music, for "Karaoke applications. I have no idea how well it  
>> works.
>>
>> Theoretically an application of the same technology might at least
>> reduce the level of the offending laugh track, it would be harder
>> because the content is similar to dialog which you would want to keep.
>>
>> Probably beyond anything we can economically do right now, but as you
>> say today's impossibility might be tomorrow's Blue Light Special at K-
>> Mart.
>>     
>
> All that equipment can do is give you some EQ presets that reduce the  
> volume of frequency ranges that vocals typically fall in. It ends up  
> making all the audio sound very bad. The only way it would sound  
> acceptable as a "karaoke track" is to crank the vocals on whomever is  
> singing over it so you don't notice how bad the music is - you can  
> concentrate on how bad the vocals are. ;) I would find it more  
> annoying to watch a program that is constantly going into/coming out  
> of mute because of laugh tracks. In fact, it would make laugh tracks  
> even more noticeable since the volume would constantly be dipping and  
> coming back.
hmmm, since laff tracks are canned material (a lot of them, I know). if
you had the right track you could use it as a filter and timebase of
what to filter out. The problem would be to find the exact canned
laughter and to start process at the exact time.
(e.g. noise cancellation)


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