Search found 59476 matches
- Mon Apr 15, 2013 2:38 pm
- Forum: Windows
- Topic: Help me understand spectrograms
- Replies: 14
- Views: 2305
Re: Help me understand spectrograms
It looks like the Hanning window is one of the "better" ones for making the white diagonal stripe look neat, but Blackman-Harris is "best." "Best" depends on what it's for. For making clear white lines, yes the Blackman-Harris is pretty good. The article that I posted ...
- Mon Apr 15, 2013 2:36 pm
- Forum: Windows
- Topic: Help me understand spectrograms
- Replies: 14
- Views: 2305
Re: Help me understand spectrograms
Try "Plot Spectrum" as well.
- Mon Apr 15, 2013 2:21 pm
- Forum: Windows
- Topic: Help me understand spectrograms
- Replies: 14
- Views: 2305
Re: Help me understand spectrograms
This looks to be pretty close to being centred on 172.3 Hz - perhaps it is a fraction off, but I'd have thought close enough.
- Mon Apr 15, 2013 8:04 am
- Forum: GNU/Linux
- Topic: compilation error
- Replies: 3
- Views: 11890
Re: compilation error
Check which version of FFMpeg you have installed. Currently supported versions are 0.5 through 0.8. http://manual.audacityteam.org/o/man/faq_installation_and_plug_ins.html#linff If you don't have a supported version of FFMpeg, the easiest workaround is to build Audacity without FFMpeg support. The f...
- Mon Apr 15, 2013 6:19 am
- Forum: Windows
- Topic: Help me understand spectrograms
- Replies: 14
- Views: 2305
Re: Help me understand spectrograms
Center, or bottom? 173 Hz Centre I believe (but I could be wrong ;)) This is the list of frequencies in Plot Spectrum for an FFT size of 256 and a sample rate of 44100 Hz: Frequency (Hz) 172.265625 344.531250 516.796875 689.062500 861.328125 1033.593750 1205.859375 1378.125000 1550.390625 1722.6562...
- Mon Apr 15, 2013 6:15 am
- Forum: Windows
- Topic: MP3 Recording is distorted but no red lines in Audacity
- Replies: 4
- Views: 598
Re: MP3 Recording is distorted but no red lines in Audacity
As Koz wrote, if you play in a loud band, you are probably overloading the microphone.whats that sound wrote:Recorded my band with Tascam Hand Held Recorder on lowest recording level
A low sensitivity dynamic microphone plugged into it will probably do the trick.
- Mon Apr 15, 2013 2:56 am
- Forum: Feature Request Archive
- Topic: Labels wish-list
- Replies: 67
- Views: 15846
Re: Labels wish-list
1. Ctrl-drag can move a label vertically to a different label track without changing its horizontal position. (Analogous to ctrl-drag in the time-shift tool.) There's quite an easy workaround for that: Click in the label that you want to replicate and press Enter (so that you're not in label edit) ...
- Sun Apr 14, 2013 11:02 pm
- Forum: Windows
- Topic: Help me understand spectrograms
- Replies: 14
- Views: 2305
Re: Help me understand spectrograms
For Nyquist programming, the Hann (Hanning) window function is often a good choice, both for its characteristics and because it is easy to generate in Nyquist. ; wlen is the windowsize in seconds (local time) (mult 0.5 (sum 1 (osc (hz-to-step (/ wlen)) wlen *sine-table* -90))) http://en.wikipedia.or...
- Sun Apr 14, 2013 10:58 pm
- Forum: Windows
- Topic: Help me understand spectrograms
- Replies: 14
- Views: 2305
Re: Help me understand spectrograms
Generate a sine wave at 172.265625 Hz. That makes the period equal to 256 samples at 44.1kHz sampling So that is a special case where the signal lies dead centre of one of the frequency bands. Take a more typical case where the frequency is not dead centre and you will see that Rectangle window giv...
- Sun Apr 14, 2013 10:37 pm
- Forum: macOS
- Topic: 'Cut' button doesn't work and 'Cut' in Edit is missing
- Replies: 5
- Views: 4102
Re: 'Cut' button doesn't work and 'Cut' in Edit is missing
The Cut menu option is in "Edit menu > Remove Audio or Labels > Cut" http://manual.audacityteam.org/o/man/edit_menu.html#cut
Note that playback must be stopped (not playing, recording or paused).
Note that playback must be stopped (not playing, recording or paused).