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More => Old Versions => JRiver Media Center 27 for Mac => Topic started by: hbarfarkle on October 07, 2020, 05:30:22 pm

Title: Headphones have no sound [Solved]
Post by: hbarfarkle on October 07, 2020, 05:30:22 pm

Since I installed MC 27, My new Sony wireless noise cancelling headphones won't work.  They worked fine on MC 26.  I get a message saying "playback could not be started on the output 'Core Audio' using the format '44.1 kHz 2ch'.  This output format may not be supported by your hardware.  You can use,DSP Studio to change the output to a compatible format.  Can anyone help me?

Title: Re: Headphones have no sound
Post by: JimH on October 07, 2020, 05:31:54 pm

Are you using MC 27.0.20?

https://yabb.jriver.com/interact/index.php/topic,127140.0.html

Title: Re: Headphones have no sound
Post by: hbarfarkle on October 08, 2020, 05:50:25 am

No, I'm using MC 27.0.15

Title: Re: Headphones have no sound
Post by: JimH on October 08, 2020, 08:08:38 am

Quote from: hbarfarkle on October 08, 2020, 05:50:25 am

No, I'm using MC 27.0.15

Try updating.

Title: Re: Headphones have no sound
Post by: bob on October 08, 2020, 08:27:28 am

Quote from: hbarfarkle on October 07, 2020, 05:30:22 pm

Since I installed MC 27, My new Sony wireless noise cancelling headphones won't work.  They worked fine on MC 26.  I get a message saying "playback could not be started on the output 'Core Audio' using the format '44.1 kHz 2ch'.  This output format may not be supported by your hardware.  You can use,DSP Studio to change the output to a compatible format.  Can anyone help me?

A lot of the bluetooth devices only run on 48k.
You can set that in DSP studio as Jim said.
Also, you may have to disable "exclusive access" in MC's Audio device options if it's enabled.

Title: Re: Headphones have no sound
Post by: hbarfarkle on October 08, 2020, 04:32:30 pm

It worked, Bob.  Thank you so much.
Ed

Title: Re: Headphones have no sound
Post by: egravenb on January 21, 2021, 09:02:11 am

I have a similar issue with my Project Bluetooth Receiver.
After upgrading to Media Center 27 (27.0.50) my MacBook Air and MacBook Pro (both OS Catalina) seem to have a compatibility issue with JR MC27 and the connected Bluetooth Device "Project BT E box"
The error displayed is:
"Something went wrong with the playback.
Details:
Playback could not be started on the output Core Audio using the format 44.1 kHz 2channel.
This format may not be supported by your hardware. You can use DSP Studio to change the output to a compatible format.
Also make sure your system has a valid sound playback device and that is properly configured in playback options"

I tried several suggestions i.e. changing all outputs in DSP Studio to 96kHz, reset Bluetooth on the receiver and on the MAC's
Apple's Music App works just fine, also Media Center 27 running on the iMac (OS High Sierra) does not seem to have a problem with my Bluetooth Receiver.

Any Suggestions?

Title: Re: Headphones have no sound
Post by: JimH on January 21, 2021, 09:21:10 am

Try 48 khz.

Title: Re: Headphones have no sound
Post by: egravenb on January 22, 2021, 08:07:42 am

Fixed the issue!! Much appreciated.
Any idea as to why it worked OK in the past on both "Catalina" and "High Sierra"?

Cheers

Title: Re: Headphones have no sound
Post by: Awesome Donkey on January 22, 2021, 08:40:55 am

Well, maybe the system mixer was resampling to 48 kHz in the background?

Most Bluetooth devices' codec(s) don't support 44.1 kHz or 96 kHz or anything else, usually only supporting 48 kHz which with MC (unless being resampled by the system mixer) will display that error unless you set DSP Studio > Output Format > Sample rate and resample everything to 48,000 Hz.

Title: Re: Headphones have no sound
Post by: egravenb on January 23, 2021, 05:50:32 am

Thank you!