Audacity Forum

Now here is a problem. When I record in Audacity, on playback, the frequency of the recorded signal is raised. I just recorded a tone at 261.62 Hz and it played back at 287 Hz. This happens in Audacity (and Richard Horne's Gram 16 as well).

I've checked the bios settings, replaced the sound card with a new one, updated the drivers -- all to no avail.

Does anyone have any ideas about how to solve this dilemma?

Thanks

Maestrogn

The ratio of those two frequencies is almost exactly the same as the ratio of 44100Hz to 48000Hz project rates.

Are you sure the project rate is the same for recording and playback? It looks very like it was recorded at 44100Hz and played back at 48000.

PO'L

It's logical, but I don't know how to cause that to happen. Audacity's project rate is 44100 -- doesn't that control both recording and playback? Gram16 is set at 44k ... so I don't know what it could be. Do you know what could be set in the computer that would cause that ratio to be expressed?

Maestrogn

Off hand, I cant think of anything.

Can you post details of your setup; computer, operating system, sound card, Audacity version, exactly how you recorded and played back the sound? The more information, the more likely someone will come up with an answer.

PO'L

<<<When I record in Audacity>>>

What exactly are you recording and how is it connected?

<<<doesn't that control both recording and playback?>>>

Not always. If Audacity can't figure out what you're recording, the output specifications could be magic. Audacity is a terrible converter. If you need to convert a sound file, do it somewhere else and then come back. It is urged strongly that if you're going to do production in Audacity, all your sound files should be the same type.

You can right-click the file > properties > advanced and see if Windows can figure out what you did. The 44100/48000 thing is probably irrelevant. All my test files are 48000 and they all play just fine on a 44100 system.

Koz