Search found 202 matches

by Piotr Grochowski
Tue Sep 12, 2017 6:27 pm
Forum: Adding Features to Audacity
Topic: By default, logarithmic frequency
Replies: 1
Views: 785

By default, logarithmic frequency

Linear frequency scale may seem powerful, but it has more drawbacks. The high frequency content is pretty much redundant, so you had to throw content above 8000Hz to the recycle bin by default. In other hand, 27.5 to 20000 logarithmic scale is just amazing and perfect. It may seem blocky for frequen...
by Piotr Grochowski
Tue Sep 12, 2017 6:17 pm
Forum: Adding Features to Audacity
Topic: Frequency interpolation - spectrograms
Replies: 1
Views: 907

Frequency interpolation - spectrograms

Frequency in spectrograms is pixelated at their detail zoom. The only way to get a smoother frequency scale currently is zero-pad, but that only adds to the window size making it slower. Instead of nearest neighbor, how about bilinear or cosine (the one that you implemented on equalizer)?
by Piotr Grochowski
Tue Sep 12, 2017 4:38 pm
Forum: Adding Features to Audacity
Topic: High contrast of spectrograms
Replies: 7
Views: 1740

Re: High contrast of spectrograms

Also by default, the gain is -20. This means that 0.1 to 1 volumes all appear black. This is very unacceptable. Mapping volume directly to brightness instead of bothering with logarithmic volume scale would improve it a lot. Currently, the default settings are: anything above -20 dB is indistinguish...
by Piotr Grochowski
Tue Sep 12, 2017 4:34 pm
Forum: Adding Features to Audacity
Topic: Allow volume to be used
Replies: 18
Views: 3554

Re: Allow normalizing and amplifying with amplitude

Volume effects, like Normalize or Equalizer use dB. This is very bad. I don't like it! Even when we do operations which don't rely on exact integers or fractions, we use simple numbers, so please do the same for volume effects. I really prefer normalizing to 0.5 volume than -6 dB. For relative volum...
by Piotr Grochowski
Tue Sep 12, 2017 4:29 pm
Forum: Adding Features to Audacity
Topic: High contrast of spectrograms
Replies: 7
Views: 1740

Re: High contrast of spectrograms

Actually that's not what low bit depth means. If there are accurate gradients it's high bit depth. Low bit depth is when gradients are represented by steps. And 6 color bands are irrelevant in grayscale view (which I prefer, as volume is 1-dimensional). There are actually many colors. Regardless of ...
by Piotr Grochowski
Tue Sep 12, 2017 4:25 pm
Forum: Adding Features to Audacity
Topic: Improve time change options
Replies: 0
Views: 631

Improve time change options

Currently the main way of communication about time change to Audacity is factor*100-100, and that -100 part is bothering me. This confused me, when I thought +100 pitch change is that higher pitch (I mean the semitone one), but ended up being scared with the result. Multiplicative factor is not some...
by Piotr Grochowski
Tue Sep 12, 2017 3:50 pm
Forum: Adding Features to Audacity
Topic: High contrast of spectrograms
Replies: 7
Views: 1740

Re: High contrast of spectrograms

I don't need a high bit depth ... The more colours / shades-of-grey, the greater the visual bit-depth required, and more processing power to render the greater number of shades in a reasonable time. So for grayscale colors, 0, 1, 2, ..., 255 ... Currently there's not 255 different colour/shades-of-...
by Piotr Grochowski
Tue Sep 12, 2017 1:56 pm
Forum: Adding Features to Audacity
Topic: High contrast of spectrograms
Replies: 7
Views: 1740

Re: High contrast of spectrograms

I don't mean to make it more complex, in fact, I want it less complex. I don't need a high bit depth. I just want brightness to directly correspond to volume instead of logarithmic volume scale, and for super narrow bands to be represented correctly, not thickened to 1 pixel which makes it seem loud...
by Piotr Grochowski
Tue Sep 12, 2017 12:15 pm
Forum: Adding Features to Audacity
Topic: High contrast of spectrograms
Replies: 7
Views: 1740

High contrast of spectrograms

Spectrogram contrast? Horrible. Why? 2 things. 1. Logarithmic volume scale used This means that 1 volume is black, but 0.5 volume is only slightly brighter. This makes the contrast horrible. 2. Super narrow bands are incorrect Narrower time or frequency bands are actually quieter, but Audacity thick...
by Piotr Grochowski
Sat Sep 09, 2017 6:56 pm
Forum: Adding Features to Audacity
Topic: 8-bit PCM
Replies: 0
Views: 624

8-bit PCM

Most people love low quality. Please allow using low quality intermediate processing, instead of having only 16-bit PCM, 24-bit PCM, and confusingly, 32-bit float for intermediate processing. You missed 32-bit PCM (what you thought would be the future entirely), 8-bit PCM, 8-bit u-law and 16-bit flo...