Search found 59476 matches

by steve
Tue Feb 20, 2018 2:51 pm
Forum: Windows
Topic: Merge AU files together
Replies: 6
Views: 1121

Re: Merge AU files together

thecookie17 wrote:the only thing I get is the error that 1 data block file is missing
What is the exact message (in full)?
by steve
Tue Feb 20, 2018 2:20 pm
Forum: Windows
Topic: Merge AU files together
Replies: 6
Views: 1121

Re: Merge AU files together

There are two parts to an Audacity project. The is a "project file" that has an "AUP" file extension, and there is the audio data which is stored separately, By default, the audio data is saved in a folder with a name ending in "_data". It is essential that you do not m...
by steve
Tue Feb 20, 2018 2:07 pm
Forum: Windows
Topic: Lost Data?
Replies: 4
Views: 323

Re: Lost Data?

What is your "E" drive? Note that network drives are not the most reliable, and when writing thousands of files at the same time (as is typical of an Audacity project), it's easy to miss warnings about one or two bad writes (that can be devastating for the project). If "E" is an ...
by steve
Tue Feb 20, 2018 1:58 pm
Forum: Windows
Topic: Installing Nyquist declicker in audacity 2.2.0
Replies: 1
Views: 328

Re: Installing Nyquist declicker in audacity 2.2.0

Installing Nyquist plug-ins is described here in the manual: https://alphamanual.audacityteam.org/ma ... on_Windows
by steve
Tue Feb 20, 2018 5:12 am
Forum: macOS
Topic: URGENT: Audacity keeps changing kHz after exporting
Replies: 1
Views: 242

Re: URGENT: Audacity keeps changing kHz after exporting

The sample rate for export is taken from the "Project Rate" in the lower left corner of the main Audacity window. Set that as required before exporting. To set the default sample rate, go into Preferences and set it in the "Quality" section. Note that importing files can override...
by steve
Mon Feb 19, 2018 10:12 pm
Forum: Nyquist
Topic: shape filter
Replies: 14
Views: 2733

Re: shape filter

The bugs are in your code: (snd-fmosc s step sr hz t0 fm phase) You have missed out the "step" parameter, and "fm" must be a sound. R B Danneberg indicates that we can also use functions (snd-... He also says: " You should use fmosc instead " http://www.cs.cmu.edu/~rbd/...
by steve
Mon Feb 19, 2018 7:00 pm
Forum: GNU/Linux
Topic: Can't not see the popup "Library" oon Audacity.
Replies: 1
Views: 940

Re: Can't not see the popup "Library" oon Audacity.

The "Libraries" option is only visible when dynamic linking is enabled. On Linux, Audacity is usually built with dynamic linking disabled, so that Audacity can link to the system libraries for LAME and FFmpeg (determined by the compiler options --disable-dynamic-linking and the choice of s...
by steve
Mon Feb 19, 2018 11:17 am
Forum: Windows
Topic: Linearizing "Plot Spectrum" Fourier Transform
Replies: 3
Views: 223

Re: Linearizing "Plot Spectrum" Fourier Transform

Is there a constant value to which the dB are scaled, i.e. what is the 'zero' value? The values are normalized such that a 0 dB sine wave will measure as 0 dB. If I recall correctly, the drawn "Spectrum graph" uses cubic interpolation to connect the data points. The raw data is available ...
by steve
Mon Feb 19, 2018 10:53 am
Forum: Windows
Topic: Decibel/ volume reader
Replies: 26
Views: 8249

Re: Decibel/ volume reader

So can you tell me if it is posible for the sound meter to messure "db spl 20 micropascals (of say) 100 db or not? In Audacity you can measure the level of the "signal". How big that signal is in relation to the "sound" depends on many factors, including microphone sensitiv...
by steve
Mon Feb 19, 2018 12:15 am
Forum: Windows
Topic: Decibel/ volume reader
Replies: 26
Views: 8249

Re: Decibel/ volume reader

1. my chainsaw has 113 db marked on it 2. this TV recording rates it at 105 db https://www.youtube.com/watch?v=I4jdGf3RzCs Those markings are probably "dB SPL" (Sound Pressure Level: reference 20 micropascals). Let's say you recorded the chainsaw with the microphone placed 1m away from th...