# No DSD Multichannel on Altitude 32

**URL:** <https://community.roonlabs.com/t/no-dsd-multichannel-on-altitude-32/199061>\
**Category:** Trinnov\
**Created:** [April 17, 2022, 6:09am UTC](https://community.roonlabs.com/t/no-dsd-multichannel-on-altitude-32/199061 "2022-04-17T06:09:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rbienstock](https://community.roonlabs.com/letter_avatar/rbienstock/32/5_5575768a8748004e209b776fc1b2916d.png) [@rbienstock](https://community.roonlabs.com/u/rbienstock)\
**Post date:** [April 17, 2022, 6:09am UTC](https://community.roonlabs.com/t/no-dsd-multichannel-on-altitude-32/199061/1 "2022-04-17T06:09:32Z")

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In my system, Roon is running on an Intel NUC running ROCK with a fast i7 chip and tons of memory. I’m sending multichannel audio files to an Altitude 32. Multichannel PCM works flawlessly, but when I try to send DSD multichannel files, the track appears to play but I only get dead silence. Here’s what Roon is sending to my unit.

 ![Screen Shot 2022-04-16 at 10.49.44 PM](https://roon-community-uploads.s3.amazonaws.com/original/3X/3/c/3c88747ae9f80597505553261d62ad2597ef0489.png)

This should work, right? Is there some setting in Roon or the Trinnov that I need to change?

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**Author:** ![rbienstock](https://community.roonlabs.com/letter_avatar/rbienstock/32/5_5575768a8748004e209b776fc1b2916d.png) [@rbienstock](https://community.roonlabs.com/u/rbienstock)\
**Post date:** [April 17, 2022, 6:31am UTC](https://community.roonlabs.com/t/no-dsd-multichannel-on-altitude-32/199061/2 "2022-04-17T06:31:52Z")

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OK, I did a little digging and when I changed the setting for max resolution tp 96Hz, it works perfectly. The Altitude is new and I hadn’t tried playing any file at a higher resolution than 96/24 before. I just discovered that I have the same problem trying to play a 192/24 PCM file. This is a Roon Ready device reporting that it can play 192/24 PCM (which agrees with the official specs for the Altitude 32). So the Altitude should play these files at greater than 96KHz, but it doesn’t. What’s wrong?

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**Author:** ![Rugby](https://community.roonlabs.com/user_avatar/community.roonlabs.com/rugby/32/360588_2.png) [@Rugby](https://community.roonlabs.com/u/Rugby)\
**Post date:** [April 18, 2022, 3:20pm UTC](https://community.roonlabs.com/t/no-dsd-multichannel-on-altitude-32/199061/3 "2022-04-18T15:20:01Z")

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Keep in mind, what rates that are listed as Input Rates are what the device can accept _as an input_; and can be different than what it actually processes at. For example, Chord DACs can accept a DSD input, but, immediately converts it to PCM to process. Most Room Correction systems process at set rates ( aka Dirac). The Trinnov seems to be able to process the signal natively at 44.1k, 48k, 88.2k, or 96k; or that is my read on the research I have done.

I always call (or email) the company’s tech support line directly to ask such questions. In this case, I would ask them to give me a walkthrough of how the Altitude processes the incoming signal and at what rates.