Audacity Forum

As far as the log, I really don't know what the deal is with that, but if this works for me, I'm ok with that....unless there is some reason I ought to be concerned? No reason to be concerned. FFmpeg is an optional "library" program that Audacity can use to extend the range of file format...

Throwing in another (closely related) item. I recall several topics where users specifically want to export a 2 channel file, even if the project is mono. Reasons for this include using CD burning software that requires stereo WAV, and another was "my client requires a 2 channel WAV file" ...

a spectrum analyzer with a log x axis that doesn't show pink noise as flat is at best misleading and at worst plain wrong. That is true for a an analyzer whose bandwidth is a constant percentage of the center frequency of the filter, but that is not what "Plot Spectrum" is, and is not wha...

Audacity > Edit > Preferences > Quality Default Sample Rate: 44100 Default Sample Format: 32-bit float Real Time Conversion Sample Rate Converter: High Quality Dither: None High Quality Conversion Sample Rate Converter: High Quality Dither: Shaped This will probably not solve the problem, but the f...

Your recording level is way too high, causing harsh clipping on the peaks. I'm guessing that you are recording via a high level signal into a low level microphone input. That's not going to work because of the mismatch of levels. The audio also shows a high amount of "DC offset" (the wavef...

Are you recording from the USB output of the RP350 or through the SoundBlaster audio input? What settings are you using in the device toolbar ? Either way, check the levels for the appropriate input device in "AlsaMixer". To open AlsaMixer, open a terminal window and enter: alsamixer (the ...

The plot does indeed correctly show the amplitude of each frequency bin but this is meaningless from an audio perspective and on a log chart if each bin is the same number of Hz wide; The "frequency bin" concept is an analogy to describe in simple terms the way that FFT analysis works. Th...

preferences_import_export_basic7.png Generally it is a mockery! default channels should remain as they were set up in the source file. The vast majority of Audacity users (many millions of people) want to always export as mono or stereo. On that basis the developers decided that behaviour should be...

From your user name I'm guessing that you are a Linux machine, so I'll move this to the Linux board.

Which Linux distribution are you using, and what sort of sound card / audio device?

Pink noise is band limited noise in which the power spectral density (power / frequency) is inversely proportional to frequency. The y axis in Audacity's "Plot Spectrum" shows amplitude, not power spectral density. The graph is correct and the Pink noise is generated to instrumentation sta...