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GLM4: No more 192/24?

klassikmann, modified 2 Years ago.

GLM4: No more 192/24?

Youngling Posts: 24 Join Date: 4/6/17 Recent Posts

I'm using 8351A since four years. The speakers are connected digitally via AES/EBU. The high-definition music material is 48/24, 96/24 and 192/24 (kHz, bits). Last week I used GLM4 for the first time making a new calibration after a firmware update of the GLM network adaptor. Today I observed that 192/24 material is no more played: it's silent and the speakers are flashing red.

Question: Could it be that 192kHz/24Bit is no more supported?

klassikmann, modified 2 Years ago.

RE: GLM4: No more 192/24?

Youngling Posts: 24 Join Date: 4/6/17 Recent Posts

Forget my cry for help. The problem is solved after re-assembly of the digital output card of the music server. Neither the speakers not GLM were affected.

Sorry for posting to the forum too early .

lukester, modified 2 Years ago.

RE: GLM4: No more 192/24?

Jedi Master Posts: 296 Join Date: 4/22/10 Recent Posts

Sidenote,
we have the suspicion that current Genelecs only do 96khz internally.
https://www.community.genelec.com/web/guest/forum/-/message_boards/message/913050#/

klassikmann, modified 2 Years ago.

RE: GLM4: No more 192/24?

Youngling Posts: 24 Join Date: 4/6/17 Recent Posts

The 8351A accepts digital input with a word length of 16 - 24 bits and a sample rate of 32 to 192 kHz. At the input section the signal will be converted to 24bit/96kHz for the tweeter and 24bit/48kHz for the midrange and woofer.

lukester, modified 2 Years ago.

RE: GLM4: No more 192/24?

Jedi Master Posts: 296 Join Date: 4/22/10 Recent Posts

Yes.
From your post i could not tell if you think that it really plays 192kHz, you might be disappointed if it doesn't.
A lot of studio people don't think there is much to gain from going from 96 to 192kHz, some equipment might even performe worse at very high frequencies.

klassikmann, modified 2 Years ago.

RE: GLM4: No more 192/24?

Youngling Posts: 24 Join Date: 4/6/17 Recent Posts

Please look here about my experiences using the speakers' internal resampler in particular if 88.2kHz/24bit input is concerned:
https://www.community.genelec.com/web/guest/forum/-/message_boards/message/1685238#_com_liferay_message_boards_web_portlet_MBPortlet_message_1700600

I know that 192/24 is internally resampled to 96/24 and 48/24. But these resamplings are more or less "trivial". I didn't hear any artifacts, so I decided to leave 192/24 material as it is.

lukester, modified 2 Years ago.

RE: GLM4: No more 192/24?

Jedi Master Posts: 296 Join Date: 4/22/10 Recent Posts

And I had a look at your post: You're doing offline resampling. Very cool!
And you know that 48 - 96 - 192kHz work togehther well.

When I looked at dithering and resampling 10 years ago Samplidude/Sequoia was the best DAW for that.
This might have changed, by now we probably have a few good options.