On Thu, 2016-11-17 at 22:26 +0100, Markus Seeber wrote:
On 11/16/2016 04:17 PM, Tino Mettler wrote:
My test setup the card clocked at 48 kHz and the
AES input and
output
looped.
Which means you connected the digital output to the digital input I
guess?
Yes.
Do you count "channel 9 and 10" one or zero
indexed? :)
Here is the channel mapping from the source for reference:
static char channel_map_H9632_ss[HDSP_MAX_CHANNELS] = {
/* ADAT channels */
0, 1, 2, 3, 4, 5, 6, 7,
/* SPDIF */
8, 9,
One indexed.
Depending on what you "mean" with "the
result" this looks perfectly
fine
to me. To be expected of a sampled square wave signal.
How did you generate the signal?
How did you measure/visualize the output?
Maybe I was a bit unclear. I generated a square sample and saved it
into a .wav file, as 48 kHz/16 bit/stereo. I expected to see the same
PCM data when recording it.
If you want to check bit transparency, you need to
compare the
samples
of your digital input and output.
I thought I did exactly that, or do you mean I need to compare the
physical signal on the cable?
I don't see any reason why it would not work if
you connect the
digital
output to the digital input.
Actually, a colleague of mine did exactly that in Windows, using
another RME card.
Here are example screenshots of the original and the recording:
https://tikei.de/playback.png
https://tikei.de/recording.png
Regards,
Tino