Audacity Forum

By default, Audacity uses 32-bit float format, and always uses 32-bit float for processing (sample values are 32-bit floating point numbers). One of the main benefits of 32-bit float over 'normal' formats (such as 16 or 24-bit integer) is that values beyond 0 dB are supported. To demonstrate this (a...

The choice of default window size is a compromise between frequency resolution and processing speed. For long tracks with a large window size, calculating the spectrogram can be very slow. I agree that for modern machines, 256 is a bit small as the default, but I think that 4096 would be too large f...

Audacity provides 4 resampling settings which can be selected in "Preferences >Quality > High-quality Sample Rate Converter". For detailed specifications of the resampling algorithms, please refer to SoX documentation (Audacity uses the soxr resampling library). Two additional algorithms a...

You can generate fractional frequencies using the Nyquist Prompt effect http://manual.audacityteam.org/man/nyquist_prompt.html The simplest way to do this, for example a 27.52 Hz sine wave is: 1) Select a region of an audio track (mono or stereo) that is the length (duration) that you require. 2) Ty...

See if this helps (from the FAQ): http://manual.audacityteam.org/man/faq_ ... k.html#usb

"Markers" in Audacity are called "Labels". What they are and how to use them is documented in the manual here: http://manual.audacityteam.org/man/label_tracks.html

LivingInternet wrote:the effect would presumably be very small.

Yes. The length error is typically less than 1/10th of a second, which is likely to be insignificant on longer tracks (but unsuitable if you want to tune a single note in a piece of music).

Do you own a metronome? If so, try recording it. Does it play back at the correct speed?

As I wrote in the last post, responding to Gale, I would like to program new plugins in Audacity for personal testing. Possible ways to follow to do this? See here: http://wiki.audacityteam.org/wiki/Creating_your_own_Plug-in and more generally, here: http://wiki.audacityteam.org/wiki/Category:For_D...

correct me, that suite won't help at all this this show. In that show, steps 1 to 3 will do nothing except select all the tracks. Step 4 puts the cursor position at the start (of all tracks) Step 5 inserts a couple of seconds of silence at the start of all tracks. All tracks now have a start time o...