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Re: sound quality problem with Soundcloud

Subject: Re: sound quality problem with Soundcloud
From: "Mike Rooke" picnet2
Date: Tue Mar 20, 2012 1:34 am ((PDT))
http://www.dodotronic.com/index.php?center=11&left=1

Contains a recording I made with the UltraMic200K of a cricket, somewhat 
relevant. 

Scroll down to the recordings section.

Soundclown may re-compress, hence it maybe better to upload as flac/lossless 
and allow downloads for testing or scientific purposes.

BR
-Mike.

--- In  vickipowys <> wrote:
>
> John,
> 
> That is excellent information, thank you so much.
> 
> The grasshopper (Froggatt's Buzzer) recorded at 44.1 k did register  
> right up to 22 kHz, and loud, so that may have caused the encoding  
> distortion in Soundcloud.
> 
> I was interested to know just how high in frequency the Froggatt's  
> Buzzers could go, so I've just tried recording them at 192k (highest  
> sample rate on the Sound Devices recorder) and their buzzing goes up  
> to 60 kHz !!!  I never knew they were in the ultrasonic league!
> 
> thanks again,
> 
> Vicki
> 
> 
> On 20/03/2012, at 4:39 PM, jtudor2005 wrote:
> 
> > Vicki
> >
> > From the SoundCloud 'Help' section about encoding and why peoples  
> > songs sound like crap. (My words)
> >
> > ******************
> > Sometimes our transcoding system can create audio artifacts, as we  
> > transcode all tracks to 128 kbps mp3 for streaming playback.  
> > Uploading a lossless or high-quality lossy file will usually reduce  
> > these to a minimum, but unfortunately there's not much we can do  
> > for the handful of individual tracks that are still affected.
> >
> > If you choose to make your track downloadable though, the version  
> > users can download will be an exact copy of the version you  
> > uploaded, without any transcoding.
> > ******************
> >
> > Me again. So it may be better uploading from a Wav file as your MP3  
> > encoded file will get re-encoded by soundcloud.
> >
> > I remember trying to upload an MP3 file to this group a long time  
> > ago to ID a bat call. UNless it was at a very high sample rate, the  
> > high pitched bat calls were not included. So SoundClouds 128 kbps  
> > transcoding may also be loosing the Grasshoppers too.
> >
> > Regards
> > John
> >
>










"While a picture is worth a thousand words, a 
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.



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