Search found 6 matches

by applelow
Wed Aug 20, 2008 5:27 am
Forum: General Audio Programming
Topic: Tone Generator Frequency Resolution
Replies: 6
Views: 5173

Re: Tone Generator Frequency Resolution

I'm trying to generate a wav encoded in aac format which will eventually combine with my progressive 59Hz video frame and output seamlessly. So, timing of the audio frame is important for me to have a seamless output. Meaning, the total time of audio and video frames matches. Still complicated? :idea:
by applelow
Wed Aug 20, 2008 2:56 am
Forum: General Audio Programming
Topic: Tone Generator Frequency Resolution
Replies: 6
Views: 5173

Re: Tone Generator Frequency Resolution

When you mentioned that the tone generator is accurate to at least 0.001Hz and probably much more, what does much more means? If I tried to key anything more than 0.001Hz on the audiocity, it will always round off, so I have no way to check how much more it can generate? The reason I'm asking is I w...
by applelow
Thu Jul 31, 2008 10:29 am
Forum: General Audio Programming
Topic: Tone Generator Frequency Resolution
Replies: 6
Views: 5173

Tone Generator Frequency Resolution

Can anyone tell me what is the frequency resolution for the Tone Generate?
Can audiocity generate this signal example: 1001.123456Hz?
by applelow
Thu Jul 31, 2008 10:12 am
Forum: General Audio Programming
Topic: mpeg-1, mpeg-2 audio samples.
Replies: 4
Views: 3476

Re: mpeg-1, mpeg-2 audio samples.

You can use the audiocity mpeg-2 audio encoder, this is working.

Go File> Export> Option to set the MP2 bit rate

Save the file and congrads: You just created your first MPEG-2 audio format.
by applelow
Thu Jul 31, 2008 10:05 am
Forum: General Audio Programming
Topic: Tone Generator Amplitude Setting
Replies: 2
Views: 3153

Re: Tone Generator Amplitude Setting

Hi, For those actually interested in the setting of audio level, the following is the conversion. 20log ( x/refrence) = 0dBu First step is to find the reference level If supposing 0dBu also equivalent to -24dBFS We will get 20log (x/reference) = -24dBFS (x/reference) = inverse log (-24/20) (x/refere...
by applelow
Thu May 08, 2008 6:52 am
Forum: General Audio Programming
Topic: Tone Generator Amplitude Setting
Replies: 2
Views: 3153

Tone Generator Amplitude Setting

Hi,

I would like to set seperately two stereo track of sinewave 1kHz with 0dBu & 10dBu level. But, the amplitude setting in the tone generator is from 0 to 1. How can I configure this 0dBu & 10dBu level. Take note 0dBu is equivalent to 0.7746v. Thank you.

Apple