Re: FLASH: Compressing voice audio for flash?

[Marc Hoffman, Poison Dart Frog Media]

At 10:45 AM 4/1/00 , you wrote:


>There are a lot of approaches to audio compression - The first standard

>method is to use dynamic compression  - not data compression, to increase

>signal to noise ratio.

>

>I wonder if it's a really good idea to whack somethng down to 8 bit though

>before Flash takes it down to 5, 4 or whatever lowly bits are left.

>Theoretically, if you have more bits to throw away during the final

>compression, you will get fewer noticeable artifacts.

>Cutting to 8 bit and

>then compressing again in Flash is going to give you more garbage in, and

>hence more garbage out. At least it seems that it would.


This is my understanding, too.


Reminder to all: 8 bit and 8kHz refer to separate things. Bit is bit-depth 

(same concept as in color bit-depth) and refers to the range of values that 

can be assigned to a single sample (measurement of a sound at a single 

point in time). The 8(kHz) that's been discussed in this thread refers to 

how frequently the sound was sampled (measured) when converting it to its 

current digital format. I'm not saying you're confused, Stace, I just know 

many others don't realize the difference.


-Marc





Marc Hoffman


Poison Dart Frog Media

http://www.dartfrogmedia.com



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