Hey Guys. 
Me again. 
I listen a music to sleep using a (very) limited portable mini system.
Sometimes the music i use to sleep get too low. Below -42db. (Then i hear outside noise) I need a plugin to increase from -42db or less to -21db.
Many thanks!
Hey!
Got a lot of peak and distortions. As before on my tests.
I think i need change this my portable mini player for a better one to get a clear and better background noise.
Many Thanks!
I listen a music to sleep using a (very) limited portable mini system.
Sometimes the music i use to sleep get too low. Below -42db. (Then i hear outside noise) I need a plugin to increase from -42db or less to -21db.
Thatâs confusingâŚ
How are you measuring -42dB that? Is that a digital level or an acoustic level? Is that a peak or average level?
The âdigital maximumâ is 0dBFS and most digital music (CDs & Mp3s, etc.) have peaks at or near 0dB with an average (or RMS or LUFS loudness) of around -20dB.
If you use the Amplify effect, Audacity has already pre-scanned your file and it will default to whatever gain (or attenuation) is needed for normalized/maximized 0dB peaks. Thatâs as loud as you can go without (potential) digital clipping[u][/u] (distortion). (WAV files are hard-limited to 0dB and your digital-to-analog converter is also limited to 0dB.)
-42dBFS (digital) is unusually low (for a peak or average dB level). Quiet parts can be -42dB or less and total digital silence between tracks on a CD is minus infinity dB. (There will still be some noise between tracks from the analog electronics and you might be able to hear it, or not.)
+42dB SPL (acoustic loudness) is âreasonableâ for fairly-quiet home environment ([u]loudness chart[/u]). 0dB SPL is approximately the quietest sound that can be heard and the only place youâll get negative SPL levels is in an anechoic chamber, or in a vacuum (or in outer-space) where there is no air. (With no air you have minus infinity dB SPL).
âŚThere is a direct correlation between digital levels and acoustic level but no standard calibration. If you reduce the digital level by 3dB the acoustic level also drops* by 3dB. But 0dB digital oy huge speakers with the volume turned-up may be louder than 0dB digital on your mini-system.
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Perhaps you are looking for Effect > Compressor ?
Hi!
-42dB on audacity, Digital level i think? (im noob)
The âdigital maximumâ is 0dBFS and most digital music (CDs & Mp3s, etc.) have peaks at or near 0dB with an average (or RMS or LUFS loudness) of around -20dB.
Maybe this is my problem with this âmusicâ and my simple player.
Sometimes too low (i wake), sometimes too high (i wake). (I have severe problems to sleep in a noisy place, and i live in a noisily place. Sadly cant afford other place)
If you use the Amplify effect, Audacity has already pre-scanned your file and it will default to whatever gain (or attenuation) is needed for normalized/maximized 0dB peaks. Thatâs as loud as you can go without (potential) digital > clipping> [u][/u] > (distortion). (WAV files are hard-limited to 0dB and your digital-to-analog converter is also limited to 0dB.)
Yeah! I read all docs before post, im new on this.
To get some good increase on dB i enabled âAllow clippingâ and got distortions.
â 42dBFS (digital) is unusually low > (for a peak or average dB level). Quiet parts can be -42dB or less and total digital silence between tracks on a CD is minus infinity dB. (There will still be > some > noise between tracks from the > analog > electronics and you > might > be able to hear it, or not.)
Im trying o keep all between -27dB and -18dB in digital, on audacity. And try to adjust on player a good âvolumeâ.
+42dB SPL (acoustic loudness) is âreasonableâ > for fairly-quiet home environment (> [u]loudness chart[/u]> ). 0dB SPL is approximately the quietest sound that can be heard and the only place youâll get negative SPL levels is in an anechoic chamber, or in a vacuum (or in outer-space) where there is no air. (With no air you have minus infinity dB SPL).
âŚThere is a direct > correlation > between digital levels and acoustic level but no standard > calibration. > If you reduce the digital level by 3dB the acoustic level also drops* by 3dB. But 0dB digital oy huge speakers with the volume turned-up may be louder than 0dB digital on your mini-system.
Understood.
- I always use an example of > lowering > the volume because your amplifier is already maxed-out a digital increase wonât result in a corresponding acoustic increase.
I need try this on other good quality system, the music is a little messed up. But now i think now is my player fault. Or at least itâs making the situation worse. I dont feel discomfort hearing the music from headset on PC. 
Many Thanks!
I will give a try. This one i never used.
Many thanks. 
Is there a quality compressor here on audacity?
Is there a quality compressor here on audacity?
Is there something wrong with Audacityâs built-in compressor?
Itâs pretty standard with adjustable ratio, threshold, attack, and release, plus a couple of other features. Thereâs nothing wrong with the âqualityâ but of course with any tool, you can mess-up the sound⌠Itâs always easier to break things with a tool than to build or repair something. 
Or there are tons of 3rd party compressors and Iâm sure many of them work in Audacity. [u]Chrisâs Compressor[/u] is a Nyquist plug-in (specifically for Audacity) and itâs a little different from most compressors.
The built-in limiter is excellent. It uses look-ahead so with most settings it doesnât distort the wave shape like a regular analog limiter. (Limiting is a kind of fast-compression).
There are also some optional [u]Nyquist limiters and compressors[/u].