(02-23-2024, 09:49 PM)Tim Curtis Wrote: Thats just a default value. When CamillaDSP is running it's being fed by a custom ALSA I-O plugin named alsa_cdsp.
https://github.com/scripple/alsa_cdsp

This plugin specifies the source audio format on the command line when it starts/restarts CamillaDSP.

Like below.

MPD -> alsa_cdsp -> CamillaDSP -> ALSA -> device

(02-24-2024, 02:29 PM)Tim Curtis Wrote: The alsa_cdsp plugin documentation recommends
"It's also suggested you set the playback format to the largest bit depth your hardware can handle"

But if you want to set a specific bit depth or other parameter for the  playback format then:

Open CamillaDSP Config
Turn "Default device" OFF
Click SAVE

Open the Pipeline Editor
Enter changes to Playback device
Click "Apply and save"

ETA: I'll need to look at our ProtoDAC Builder Guide. I may need to make some corrections to section 5.3 CamillaDSP Pipeline Settings.

(02-24-2024, 07:22 PM)varunach Wrote:

(02-24-2024, 02:29 PM)Tim Curtis Wrote: The alsa_cdsp plugin documentation recommends
"It's also suggested you set the playback format to the largest bit depth your hardware can handle"

But if you want to set a specific bit depth or other parameter for the  playback format then:

Open CamillaDSP Config
Turn "Default device" OFF
Click SAVE

Open the Pipeline Editor
Enter changes to Playback device
Click "Apply and save"

ETA: I'll need to look at our ProtoDAC Builder Guide. I may need to make some corrections to section 5.3 CamillaDSP Pipeline Settings.

Thanks @Tim Curtis yeah given ProtoDAC is a 16 bit device it looks like fixing the bit depth and all processing in Moode to 16 bit (but let the freq KHz to vary based on source) might be the best outcome? Not an expert in these just a thought.

(02-27-2024, 02:16 PM)v12nut Wrote: Hi,
I am building my first protodac and in the process of collecting parts, found these and wondered if they would be ok for this project.
https://www.aliexpress.com/item/1005006524036656.html?spm=a2g0o.order_list.order_list_main.5.65761802Km2V4A

thanks

(02-27-2024, 02:50 PM)hifinet Wrote:

(02-27-2024, 02:16 PM)v12nut Wrote: Hi,
I am building my first protodac and in the process of collecting parts, found these and wondered if they would be ok for this project.
https://www.aliexpress.com/item/1005006524036656.html?spm=a2g0o.order_list.order_list_main.5.65761802Km2V4A

thanks

I would say no. I would recommend the Audiophiler MKP 6.8uF . There are other sellers. You should look for film caps that are either polypropylene (MKP) or polycarbonate (MKC). Also, you need to know the size of the cap, and with radial caps the lead spacing. Lead spacing should be 27.5mm or 37.5mm. You will have more flexibility with axial caps. Keep the voltage rating lower for a smaller size.

(02-27-2024, 03:07 PM)hifinet Wrote: How do you really know they are MKP? It says it in the listing line, but not the part label. I wouldn't trust the Ali store. If you can find the spec sheet from the manufacturer. Also, the part will be pretty big in polypropylene at a 600V rating. If the lead spacing is not 27.5mm or 37.5mm, it will be hard to work with on the PCB.

If you can get the cap dimensions, you can tell if it is MKP or polyester (MKS). MKS are substantially smaller, about the size of MKC. Compare it to the size of a similarly rated WIMA MKP.