<div dir="ltr"><div>@David: <br></div><div>> <span class="gmail-im">
</span>Yeah, looking forward to bringing that to [community] actually! :)</div><div><br></div><div>wow, thanks ! but it's not ready for prime-time yet, it's still in alpha. I'll drop you a mail when sufficient battle-testing will have occured, hopefully by the end of the year.</div><div><br></div><div>@Ralf:<br></div><div>>
An audio device might come with a filter optimized for 48KHz usage.</div><div>Okay, that's what I was wondering about. I'm going to rummage a bit through my soundcards's spec sheets to see if they mention this. Thanks ! <br></div><br><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><br></div><div><font color="#783f04"><br></font></div><div><font size="2" face="arial, helvetica, sans-serif" color="#134f5c">-------</font></div><font size="2" face="arial, helvetica, sans-serif" color="#134f5c">Jean-Michaël Celerier</font><div><font size="2" face="arial, helvetica, sans-serif" color="#134f5c"><a href="http://www.jcelerier.name" target="_blank">http://www.jcelerier.name</a></font></div></div></div></div>
<br><div class="gmail_quote">On Tue, Jul 31, 2018 at 11:31 AM, Ralf Mardorf <span dir="ltr"><<a href="mailto:ralf.mardorf@alice-dsl.net" target="_blank">ralf.mardorf@alice-dsl.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Tue, 31 Jul 2018 11:01:32 +0200, Jean-Michaël Celerier wrote:<br>
>Do you have a source for this ?<br>
<br>
</span>Yesno! Actually I'm the source, since I worked as a professional audio<br>
engineer for e.g. Brauner Microphones, Werner Nekes and other. However,<br>
perhaps you expect something as the below quoted Wikis:<br>
<br>
"Sampling rate 48,000 Hz <br>
<br>
The standard audio sampling rate used by professional digital video<br>
equipment such as tape recorders, video servers, vision mixers and so<br>
on. This rate was chosen because it could reconstruct frequencies up to<br>
22 kHz and work with 29.97 frames per second NTSC video - as well as 25<br>
frame/s, 30 frame/s and 24 frame/s systems. With 29.97 frame/s systems<br>
it is necessary to handle 1601.6 audio samples per frame delivering an<br>
integer number of audio samples only every fifth video frame.[9] Also<br>
used for sound with consumer video formats like DV, digital TV, DVD,<br>
and films. The professional Serial Digital Interface (SDI) and<br>
High-definition Serial Digital Interface (HD-SDI) used to connect<br>
broadcast television equipment together uses this audio sampling<br>
frequency. Most professional audio gear uses 48 kHz sampling, including<br>
mixing consoles, and digital recording devices." -<br>
<a href="https://en.wikipedia.org/wiki/Sampling_(signal_processing)#Sampling_rate" rel="noreferrer" target="_blank">https://en.wikipedia.org/wiki/<wbr>Sampling_(signal_processing)#<wbr>Sampling_rate</a><br>
<br>
"To avoid aliasing, the input to an ADC must be low-pass filtered to<br>
remove frequencies above half the sampling rate. This filter is called<br>
an anti-aliasing filter, and is essential for a practical ADC system<br>
that is applied to analog signals with higher frequency content." -<br>
<a href="https://en.wikipedia.org/wiki/Analog-to-digital_converter#Sampling_rate" rel="noreferrer" target="_blank">https://en.wikipedia.org/wiki/<wbr>Analog-to-digital_converter#<wbr>Sampling_rate</a><br>
<br>
An audio device might come with a filter optimized for 48KHz usage.<br>
</blockquote></div><br></div></div>