Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-14 Thread Anthony Pace
Nice catch Paul Andrews... 

When you are spreading out the frames you spread out the peaks and 
valleys in the audio sample; thus, in my understanding,  because you are 
extending time, there is no way of keeping the audio sound similar to 
the original sample without losing sync to the frames.


With regard to playing the flv in slow motion, my thoughts are:

*/_1_/.* If you are using the same flv, what you could do is calculate 
how slow you want it, say 1/2 regular speed, and then take the amount of 
frames you have per second, say 30 fps, and you know you have to play 
each frame twice (or reducing playback to 15 fps whilst still using the 
original amount of frames and audio sample), in order to extend the 1 
second sample over 2 seconds.  Typing this idea confused me for a moment.


*/_2._/* If you are using a high quality high fps video for the slow 
motion section, you might just want to stream in the entire low quality 
lower fps flv in, have the high quality slow mode flv, with double the 
frames recorded and displayable, only be called when it is needed, and 
play the lower fps flv in slow mode, using the idea above */_1_/* , 
until the high quality section has buffered enough.


What do you think?  any other ideas?

Thanks,
Anthony


Paul Andrews wrote:


- Original Message - From: Adam Duston a...@langolab.com
To: flashcoders@chattyfig.figleaf.com
Cc: Jennifer Ede jenni...@langolab.com
Sent: Friday, March 13, 2009 10:37 PM
Subject: [Flashcoders] Playing Flash video in slow-motion



Dear Flashcoders,

I must play an FLV in slow motion. After googling around for this for
several hours I've found many bad solutions. For example, the one at
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
the sound. I must play the sound slowly as well, without altering its
pitch.


Just how can you play a sound slowly without altering the pitch?


I have a solution in mind: I'm going to store each of my videos in SWF
format in one-minute segments. As each segment finishes downloading,
my custom player will start downloading the next segment, and will
play each of them back-to-back. I have proof that when a video is in
SWF format, it can be played in slow motion without noticeable
degradation in sound quality.

As you can tell, this solution is hacky and is going to take a lot of
work to implement. So, before implementing it, I wanted to make a
final check with the experts to make sure I'm not wasting my time.

Thank you,
Adam

--
Founder, langolab.com
a...@langolab.com
Skype: aduston
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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-14 Thread Adam Duston
Hi Paul,

Thank you for your reply.

 Just how can you play a sound slowly without altering the pitch?

Thanks, I overlooked this important implementation detail. Keep a
separate swf with the sound recorded slowly but with lowered pitch.
The video player loads both the video swf (with regular sound) and the
sound-only swf file (with slow sound). Then, when the slow button is
clicked, play the video swf slowly with no sound, and simultaneously
play the sound-only swf file at a synchronized location.

Maybe this would work with the flv solution so long as the sound-only
file is kept in swf format or in flv but streamed through a flash
media server instance, so that seeking could be done to non-keyframe
locations.

Thanks again,
Adam



On Fri, Mar 13, 2009 at 8:59 PM, Paul Andrews p...@ipauland.com wrote:

 - Original Message - From: Adam Duston a...@langolab.com
 To: flashcoders@chattyfig.figleaf.com
 Cc: Jennifer Ede jenni...@langolab.com
 Sent: Friday, March 13, 2009 10:37 PM
 Subject: [Flashcoders] Playing Flash video in slow-motion


 Dear Flashcoders,

 I must play an FLV in slow motion. After googling around for this for
 several hours I've found many bad solutions. For example, the one at
 http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
 choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
 the sound. I must play the sound slowly as well, without altering its
 pitch.

 Just how can you play a sound slowly without altering the pitch?

 I have a solution in mind: I'm going to store each of my videos in SWF
 format in one-minute segments. As each segment finishes downloading,
 my custom player will start downloading the next segment, and will
 play each of them back-to-back. I have proof that when a video is in
 SWF format, it can be played in slow motion without noticeable
 degradation in sound quality.

 As you can tell, this solution is hacky and is going to take a lot of
 work to implement. So, before implementing it, I wanted to make a
 final check with the experts to make sure I'm not wasting my time.

 Thank you,
 Adam

 --
 Founder, langolab.com
 a...@langolab.com
 Skype: aduston
 ___
 Flashcoders mailing list
 Flashcoders@chattyfig.figleaf.com
 http://chattyfig.figleaf.com/mailman/listinfo/flashcoders

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 Flashcoders@chattyfig.figleaf.com
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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-14 Thread Paul Andrews


- Original Message - 
From: Adam Duston a...@langolab.com

To: Flash Coders List flashcoders@chattyfig.figleaf.com
Cc: Jennifer Ede jenni...@langolab.com
Sent: Saturday, March 14, 2009 4:43 PM
Subject: Re: [Flashcoders] Playing Flash video in slow-motion



Hi Paul,

Thank you for your reply.


Just how can you play a sound slowly without altering the pitch?


Thanks, I overlooked this important implementation detail. Keep a
separate swf with the sound recorded slowly but with lowered pitch.
The video player loads both the video swf (with regular sound) and the
sound-only swf file (with slow sound). Then, when the slow button is
clicked, play the video swf slowly with no sound, and simultaneously
play the sound-only swf file at a synchronized location.

Maybe this would work with the flv solution so long as the sound-only
file is kept in swf format or in flv but streamed through a flash
media server instance, so that seeking could be done to non-keyframe
locations.


I would be amazed if it would work. Does anyone on the list know of any site 
with slow-motion playback where the sound has retained the original pitch?


The only way I can imagine it working is to raise the sound pitch of the 
clip in proportion to the slowdown to try and retain the original pitch. I 
have no idea if it's possible.


Good luck.


Thanks again,
Adam



On Fri, Mar 13, 2009 at 8:59 PM, Paul Andrews p...@ipauland.com wrote:


- Original Message - From: Adam Duston a...@langolab.com
To: flashcoders@chattyfig.figleaf.com
Cc: Jennifer Ede jenni...@langolab.com
Sent: Friday, March 13, 2009 10:37 PM
Subject: [Flashcoders] Playing Flash video in slow-motion



Dear Flashcoders,

I must play an FLV in slow motion. After googling around for this for
several hours I've found many bad solutions. For example, the one at
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
the sound. I must play the sound slowly as well, without altering its
pitch.


Just how can you play a sound slowly without altering the pitch?


I have a solution in mind: I'm going to store each of my videos in SWF
format in one-minute segments. As each segment finishes downloading,
my custom player will start downloading the next segment, and will
play each of them back-to-back. I have proof that when a video is in
SWF format, it can be played in slow motion without noticeable
degradation in sound quality.

As you can tell, this solution is hacky and is going to take a lot of
work to implement. So, before implementing it, I wanted to make a
final check with the experts to make sure I'm not wasting my time.

Thank you,
Adam

--
Founder, langolab.com
a...@langolab.com
Skype: aduston


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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-14 Thread Eric E. Dolecki
I don't know what the point of keeping the pitch the same would actually
be...

On Sat, Mar 14, 2009 at 1:11 PM, Paul Andrews p...@ipauland.com wrote:


 - Original Message - From: Adam Duston a...@langolab.com
 To: Flash Coders List flashcoders@chattyfig.figleaf.com
 Cc: Jennifer Ede jenni...@langolab.com
 Sent: Saturday, March 14, 2009 4:43 PM
 Subject: Re: [Flashcoders] Playing Flash video in slow-motion


  Hi Paul,

 Thank you for your reply.

  Just how can you play a sound slowly without altering the pitch?


 Thanks, I overlooked this important implementation detail. Keep a
 separate swf with the sound recorded slowly but with lowered pitch.
 The video player loads both the video swf (with regular sound) and the
 sound-only swf file (with slow sound). Then, when the slow button is
 clicked, play the video swf slowly with no sound, and simultaneously
 play the sound-only swf file at a synchronized location.

 Maybe this would work with the flv solution so long as the sound-only
 file is kept in swf format or in flv but streamed through a flash
 media server instance, so that seeking could be done to non-keyframe
 locations.


 I would be amazed if it would work. Does anyone on the list know of any
 site with slow-motion playback where the sound has retained the original
 pitch?

 The only way I can imagine it working is to raise the sound pitch of the
 clip in proportion to the slowdown to try and retain the original pitch. I
 have no idea if it's possible.

 Good luck.


  Thanks again,
 Adam



 On Fri, Mar 13, 2009 at 8:59 PM, Paul Andrews p...@ipauland.com wrote:


 - Original Message - From: Adam Duston a...@langolab.com
 To: flashcoders@chattyfig.figleaf.com
 Cc: Jennifer Ede jenni...@langolab.com
 Sent: Friday, March 13, 2009 10:37 PM
 Subject: [Flashcoders] Playing Flash video in slow-motion


  Dear Flashcoders,

 I must play an FLV in slow motion. After googling around for this for
 several hours I've found many bad solutions. For example, the one at
 http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
 choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
 the sound. I must play the sound slowly as well, without altering its
 pitch.


 Just how can you play a sound slowly without altering the pitch?

  I have a solution in mind: I'm going to store each of my videos in SWF
 format in one-minute segments. As each segment finishes downloading,
 my custom player will start downloading the next segment, and will
 play each of them back-to-back. I have proof that when a video is in
 SWF format, it can be played in slow motion without noticeable
 degradation in sound quality.

 As you can tell, this solution is hacky and is going to take a lot of
 work to implement. So, before implementing it, I wanted to make a
 final check with the experts to make sure I'm not wasting my time.

 Thank you,
 Adam

 --
 Founder, langolab.com
 a...@langolab.com
 Skype: aduston


 ___
 Flashcoders mailing list
 Flashcoders@chattyfig.figleaf.com
 http://chattyfig.figleaf.com/mailman/listinfo/flashcoders




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Interactive design and development
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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-14 Thread Matthew Muller
2 videos, 1 slowed in after effects, both streamed, do the math to  
jump to the appropriate timecode.


Sent from my iPhone

On 14 Mar 2009, at 17:49, Paul Andrews p...@ipauland.com wrote:


- Original Message - From: Adam Duston a...@langolab.com
To: Flash Coders List flashcoders@chattyfig.figleaf.com
Sent: Saturday, March 14, 2009 5:37 PM
Subject: Re: [Flashcoders] Playing Flash video in slow-motion


I don't know what the point of keeping the pitch the same would  
actually

be...


Suppose you are learning a foreign language, and the video contains
somebody speaking quickly. It might be useful to slow down the video
to hear them.


Most language video of this type is purpose made with people who  
speak at an appropriate speed for the learner. I guess that such  
projects will just exclude video that has people speaking too quickly.


If that is the basis for the slow-motion requirement, my opinion is  
that the slow-motion reuirement is pointless and counter-productive.


Paul

On Sat, Mar 14, 2009 at 12:25 PM, Eric E. Dolecki  
edole...@gmail.com wrote:
I don't know what the point of keeping the pitch the same would  
actually

be...

On Sat, Mar 14, 2009 at 1:11 PM, Paul Andrews p...@ipauland.com  
wrote:




- Original Message - From: Adam Duston  
a...@langolab.com

To: Flash Coders List flashcoders@chattyfig.figleaf.com
Cc: Jennifer Ede jenni...@langolab.com
Sent: Saturday, March 14, 2009 4:43 PM
Subject: Re: [Flashcoders] Playing Flash video in slow-motion


Hi Paul,


Thank you for your reply.

Just how can you play a sound slowly without altering the pitch?




Thanks, I overlooked this important implementation detail. Keep a
separate swf with the sound recorded slowly but with lowered  
pitch.
The video player loads both the video swf (with regular sound)  
and the
sound-only swf file (with slow sound). Then, when the slow  
button is
clicked, play the video swf slowly with no sound, and  
simultaneously

play the sound-only swf file at a synchronized location.

Maybe this would work with the flv solution so long as the sound- 
only

file is kept in swf format or in flv but streamed through a flash
media server instance, so that seeking could be done to non- 
keyframe

locations.



I would be amazed if it would work. Does anyone on the list know  
of any
site with slow-motion playback where the sound has retained the  
original

pitch?

The only way I can imagine it working is to raise the sound pitch  
of the
clip in proportion to the slowdown to try and retain the original  
pitch. I

have no idea if it's possible.

Good luck.


Thanks again,

Adam



On Fri, Mar 13, 2009 at 8:59 PM, Paul Andrews  
p...@ipauland.com wrote:




- Original Message - From: Adam Duston a...@langolab.com 


To: flashcoders@chattyfig.figleaf.com
Cc: Jennifer Ede jenni...@langolab.com
Sent: Friday, March 13, 2009 10:37 PM
Subject: [Flashcoders] Playing Flash video in slow-motion


Dear Flashcoders,


I must play an FLV in slow motion. After googling around for  
this for
several hours I've found many bad solutions. For example, the  
one at
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is  
extremely
choppy, whereas the one at http://richapps.de/?p=36 doesn't  
also play
the sound. I must play the sound slowly as well, without  
altering its

pitch.



Just how can you play a sound slowly without altering the pitch?

I have a solution in mind: I'm going to store each of my videos  
in SWF
format in one-minute segments. As each segment finishes  
downloading,
my custom player will start downloading the next segment, and  
will
play each of them back-to-back. I have proof that when a video  
is in

SWF format, it can be played in slow motion without noticeable
degradation in sound quality.

As you can tell, this solution is hacky and is going to take a  
lot of
work to implement. So, before implementing it, I wanted to  
make a
final check with the experts to make sure I'm not wasting my  
time.


Thank you,
Adam

--
Founder, langolab.com
a...@langolab.com
Skype: aduston




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[Flashcoders] Playing Flash video in slow-motion

2009-03-13 Thread Adam Duston
Dear Flashcoders,

I must play an FLV in slow motion. After googling around for this for
several hours I've found many bad solutions. For example, the one at
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
the sound. I must play the sound slowly as well, without altering its
pitch.

I have a solution in mind: I'm going to store each of my videos in SWF
format in one-minute segments. As each segment finishes downloading,
my custom player will start downloading the next segment, and will
play each of them back-to-back. I have proof that when a video is in
SWF format, it can be played in slow motion without noticeable
degradation in sound quality.

As you can tell, this solution is hacky and is going to take a lot of
work to implement. So, before implementing it, I wanted to make a
final check with the experts to make sure I'm not wasting my time.

Thank you,
Adam

-- 
Founder, langolab.com
a...@langolab.com
Skype: aduston
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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-13 Thread Andy Andersson
Why not just re-export the videos in a slow motion format? Unless  
there are a specific funcion that are needed


Andy
Sent from my iPhone

On Mar 13, 2009, at 3:37 PM, Adam Duston a...@langolab.com wrote:


Dear Flashcoders,

I must play an FLV in slow motion. After googling around for this for
several hours I've found many bad solutions. For example, the one at
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
the sound. I must play the sound slowly as well, without altering its
pitch.

I have a solution in mind: I'm going to store each of my videos in SWF
format in one-minute segments. As each segment finishes downloading,
my custom player will start downloading the next segment, and will
play each of them back-to-back. I have proof that when a video is in
SWF format, it can be played in slow motion without noticeable
degradation in sound quality.

As you can tell, this solution is hacky and is going to take a lot of
work to implement. So, before implementing it, I wanted to make a
final check with the experts to make sure I'm not wasting my time.

Thank you,
Adam

--
Founder, langolab.com
a...@langolab.com
Skype: aduston
___
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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-13 Thread Patrick Matte
What you will get if you put your videos on the timeline will be similar to
what you can see on the MGM Grand website http://www.mgmgrand.com/

After you enter the experience, click on the round navigation and the video
will fastforward and then slow down at the end with some easing. That's how
your video is going to sound like.

-- 



 From: Adam Duston a...@langolab.com
 Reply-To: a...@langolab.com, Flash Coders List
 flashcoders@chattyfig.figleaf.com
 Date: Fri, 13 Mar 2009 17:37:16 -0500
 To: flashcoders@chattyfig.figleaf.com
 Cc: Jennifer Ede jenni...@langolab.com
 Subject: [Flashcoders] Playing Flash video in slow-motion
 
 Dear Flashcoders,
 
 I must play an FLV in slow motion. After googling around for this for
 several hours I've found many bad solutions. For example, the one at
 http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
 choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
 the sound. I must play the sound slowly as well, without altering its
 pitch.
 
 I have a solution in mind: I'm going to store each of my videos in SWF
 format in one-minute segments. As each segment finishes downloading,
 my custom player will start downloading the next segment, and will
 play each of them back-to-back. I have proof that when a video is in
 SWF format, it can be played in slow motion without noticeable
 degradation in sound quality.
 
 As you can tell, this solution is hacky and is going to take a lot of
 work to implement. So, before implementing it, I wanted to make a
 final check with the experts to make sure I'm not wasting my time.
 
 Thank you,
 Adam
 
 -- 
 Founder, langolab.com
 a...@langolab.com
 Skype: aduston
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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-13 Thread Adam Duston
Andy,

This is an excellent suggestion. However, there is a detail that I
failed to share at first which results in a couple of disadvantages:
the video must play at normal speed usually and have a slow button
that slows down playing. The resulting disadvantages:

1. When the slow button is clicked, the player needs to load the slow
FLV, so it will have to buffer for a few seconds first.
2. When the slow button is clicked and the slow FLV finishes loading
and buffering, the player will need to seek to the nearest keyframe.
So the user will click the slow button and, depending on the
keyframe metadata, the video might end up playing in slow motion
starting from a few seconds earlier.

Any ideas about circumventing these downsides?

Thanks again for your suggestion. In spite of its obviousness I
honestly hadn't thought of it before.

Adam

On Fri, Mar 13, 2009 at 5:45 PM, Andy Andersson awebme...@sbcglobal.net wrote:
 Why not just re-export the videos in a slow motion format? Unless there are
 a specific funcion that are needed

 Andy
 Sent from my iPhone

 On Mar 13, 2009, at 3:37 PM, Adam Duston a...@langolab.com wrote:

 Dear Flashcoders,

 I must play an FLV in slow motion. After googling around for this for
 several hours I've found many bad solutions. For example, the one at
 http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
 choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
 the sound. I must play the sound slowly as well, without altering its
 pitch.

 I have a solution in mind: I'm going to store each of my videos in SWF
 format in one-minute segments. As each segment finishes downloading,
 my custom player will start downloading the next segment, and will
 play each of them back-to-back. I have proof that when a video is in
 SWF format, it can be played in slow motion without noticeable
 degradation in sound quality.

 As you can tell, this solution is hacky and is going to take a lot of
 work to implement. So, before implementing it, I wanted to make a
 final check with the experts to make sure I'm not wasting my time.

 Thank you,
 Adam

 --
 Founder, langolab.com
 a...@langolab.com
 Skype: aduston
 ___
 Flashcoders mailing list
 Flashcoders@chattyfig.figleaf.com
 http://chattyfig.figleaf.com/mailman/listinfo/flashcoders




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a...@langolab.com
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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-13 Thread Andy Andersson
You might need to look onto a streaming option that way you can feed  
the Flv in a much better way


Andy

Sent from my iPhone

On Mar 13, 2009, at 4:08 PM, Adam Duston a...@langolab.com wrote:


Andy,

This is an excellent suggestion. However, there is a detail that I
failed to share at first which results in a couple of disadvantages:
the video must play at normal speed usually and have a slow button
that slows down playing. The resulting disadvantages:

1. When the slow button is clicked, the player needs to load the slow
FLV, so it will have to buffer for a few seconds first.
2. When the slow button is clicked and the slow FLV finishes loading
and buffering, the player will need to seek to the nearest keyframe.
So the user will click the slow button and, depending on the
keyframe metadata, the video might end up playing in slow motion
starting from a few seconds earlier.

Any ideas about circumventing these downsides?

Thanks again for your suggestion. In spite of its obviousness I
honestly hadn't thought of it before.

Adam

On Fri, Mar 13, 2009 at 5:45 PM, Andy Andersson awebme...@sbcglobal.net 
 wrote:
Why not just re-export the videos in a slow motion format? Unless  
there are

a specific funcion that are needed

Andy
Sent from my iPhone

On Mar 13, 2009, at 3:37 PM, Adam Duston a...@langolab.com wrote:


Dear Flashcoders,

I must play an FLV in slow motion. After googling around for this  
for

several hours I've found many bad solutions. For example, the one at
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
choppy, whereas the one at http://richapps.de/?p=36 doesn't also  
play
the sound. I must play the sound slowly as well, without altering  
its

pitch.

I have a solution in mind: I'm going to store each of my videos in  
SWF

format in one-minute segments. As each segment finishes downloading,
my custom player will start downloading the next segment, and will
play each of them back-to-back. I have proof that when a video is in
SWF format, it can be played in slow motion without noticeable
degradation in sound quality.

As you can tell, this solution is hacky and is going to take a lot  
of

work to implement. So, before implementing it, I wanted to make a
final check with the experts to make sure I'm not wasting my time.

Thank you,
Adam

--
Founder, langolab.com
a...@langolab.com
Skype: aduston
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--
Founder, langolab.com
a...@langolab.com
Skype: aduston

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Re: [Flashcoders] Playing Flash video in slow-motion

2009-03-13 Thread Paul Andrews


- Original Message - 
From: Adam Duston a...@langolab.com

To: flashcoders@chattyfig.figleaf.com
Cc: Jennifer Ede jenni...@langolab.com
Sent: Friday, March 13, 2009 10:37 PM
Subject: [Flashcoders] Playing Flash video in slow-motion



Dear Flashcoders,

I must play an FLV in slow motion. After googling around for this for
several hours I've found many bad solutions. For example, the one at
http://www.flashcomguru.com/index.cfm/2005/8/2/slowmo is extremely
choppy, whereas the one at http://richapps.de/?p=36 doesn't also play
the sound. I must play the sound slowly as well, without altering its
pitch.


Just how can you play a sound slowly without altering the pitch?


I have a solution in mind: I'm going to store each of my videos in SWF
format in one-minute segments. As each segment finishes downloading,
my custom player will start downloading the next segment, and will
play each of them back-to-back. I have proof that when a video is in
SWF format, it can be played in slow motion without noticeable
degradation in sound quality.

As you can tell, this solution is hacky and is going to take a lot of
work to implement. So, before implementing it, I wanted to make a
final check with the experts to make sure I'm not wasting my time.

Thank you,
Adam

--
Founder, langolab.com
a...@langolab.com
Skype: aduston
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