inquiry about audio sample, confused of recorder samples

Audio software developers forum.
Forum rules
If you require help using Audacity, please post on the forum board relevant to your operating system:
Windows
Mac OS X
GNU/Linux and Unix-like
steve
Site Admin
Posts: 81609
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: inquiry about audio sample, confused of recorder samples

Post by steve » Tue Nov 22, 2011 4:11 pm

tongyong wrote:One more question:

Do playback have the same scenario?
That we have to fed a 8bit signed(+127 to -128) also to the audio?
because I created a sine wave tone (from this formula: Amplitude*sin(2*Pi*Freq*Time)...Amplitude used was 120
currently what i did was, I cast the output of the formula to integer and added 127; and kinda have a weird unwilling noise of the tone.
I think that you need to tell us more about what you are doing.
Are you using a standard computer sound card or some other "special" hardware?
Why is your audio 96 kHz, signed 8 bit? Is this a feature of your hardware or just an arbitrary format that you decided to use?
What are you trying to achieve?
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

Post Reply