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More => Old Versions => JRiver Media Center 25 for Mac => Topic started by: Wan HC on July 17, 2019, 01:39:20 pm

Title: Can't playback on headphones on a Mac
Post by: Wan HC on July 17, 2019, 01:39:20 pm

I upgraded from MC24 to MC25 on a Mac.  I use a pair of B&W P7 bluetooth headphones which shows up on Audio Device as "P7 Bowers & Wilkins [Core Audio]" under Player\Playback Options. Playback fails with the error message beginning "Playback could not be started on the output Core Audio using the format 44.1Khz 2 channels"

Can anyone please help to resolve this problem?

Title: Re: Can't playback on headphones on a Mac
Post by: JimH on July 17, 2019, 01:42:06 pm

You can use MC's DSP Studio > Output Settings to convert the format to 16/48 or similar.

Title: Re: Can't playback on headphones on a Mac
Post by: Wan HC on July 17, 2019, 02:17:18 pm

Jim
Thanks for responding.  Pls bear with me.  I can't seem to find a section on the Output Settings page that allows me to do what you suggested?

Title: Re: Can't playback on headphones on a Mac
Post by: Awesome Donkey on July 17, 2019, 02:28:34 pm

Go to the Player menu, then DSP Studio...

From there go to Output Format on the left, and under sample rate set every Input to a 48,000 Hz output except the 48,000 Hz input (since that's the intended source sample rate, no reason to resample there). More info can be found on the wiki here: https://wiki.jriver.com/index.php/Output_Format

This happens because most Bluetooth headphones/speakers only support a sample rate of 48 kHz, and needs everything resampled to that sample rate for it to work.

Title: Re: Can't playback on headphones on a Mac
Post by: Wan HC on July 19, 2019, 01:17:02 pm

Jim
Thank you very much.  Your solution worked just fine.  Happy again   :) :) Cheers.