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
>
|