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[mikepo]

Just upgraded from MC30 to 33, and neither version will play. Error: Playback could not be started on the output 'Core Audio' using the format '48 kHz 2ch'. Haven't used 30 for a while. Computer is M2 iMac with Sequoia 15.1. All other audio is fine.

Mike

[bob]

Just upgraded from MC30 to 33, and neither version will play. Error: Playback could not be started on the output 'Core Audio' using the format '48 kHz 2ch'. Haven't used 30 for a while. Computer is M2 iMac with Sequoia 15.1. All other audio is fine.

Mike

In MC's audio device settings turn off integer mode and exclusive mode. With those off you are using the least demanding settings.

[mikepo]

Thanks. They're already off.

[bob]

Thanks. They're already off.

Playing to the default core audio device which is??

[mikepo]

External headphones

[JimH]

How are the headphones connected?

[mikepo]

External speakers are plugged into the headphone jack. And they work fine for all other apps (Spotify, Apple Music, etc).

[AGAWA]

perhaps this can be of use:
currently M1 Sequoia 15.0.1, Mac Mini
upgraded from MC32 to MC 33 before upgrading Mac OS to 15 and then 15.0.1
playing to headphones output connected to speakers.
No problems whatsoever.

Upgrade path on M2 perhaps?

[bob]

External speakers are plugged into the headphone jack. And they work fine for all other apps (Spotify, Apple Music, etc).

Turn on logging in MC (Help->Logging)
Attach a log.
Audio device open is extensively logged.

[Gijja]

Just upgraded from MC30 to 33, and neither version will play. Error: Playback could not be started on the output 'Core Audio' using the format '48 kHz 2ch'. Haven't used 30 for a while. Computer is M2 iMac with Sequoia 15.1. All other audio is fine.

Mike

I have exactly the same problem, which started when I upgraded to MacOS 15.1 (M3 Max MacBook).

[bob]

Please turn on logging and attach a log. As I said, audio device opening is logged extensively.

[bob]

On my M1 Mac mini on 15.1 there are no issues.
Playing 44.1k ALAC to core audio with exclusive and integer mode unchecked and buffering set to default in MC's Audio settings.

At any rate the log will be useful. It's also possible the M2/M3 regressed the HDMI output back to 48k only. You may try change that in DSP studio output format.

[Gijja]

On my M1 Mac mini on 15.1 there are no issues.
Playing 44.1k ALAC to core audio with exclusive and integer mode unchecked and buffering set to default in MC's Audio settings.

At any rate the log will be useful. It's also possible the M2/M3 regressed the HDMI output back to 48k only. You may try change that in DSP studio output format.

Playback now works. I carefully went through the permissions to make certain that Media Center was authorized where required and made some corrections. I suspect that was my problem.

[mikepo]

Still can't play. What Mac settings did you change?

[bob]

Still can't play. What Mac settings did you change?

Did you turn logging on? There are no logs here, only system info.

[mikepo]

I did, but here's another try.

[bob]

I did, but here's another try.

You are trying to play 4 channel audio to the internal speakers using the output format of Dolby Digital?
Not likely to work. Dolby digital is for external amps that support AC3 encoding.

You need to setup your DSP studio for the correct output format for the device you are trying to play to.
If you have multiple output devices (as most of us have) setup separate zones for each output device.

Code: [Select]

0064431: 6169391104: Playback: CAutoConfigureAudioOutput::GetOutputFormat: Using input format
0064431: 6169391104: Playback: CAutoConfigureAudioOutput::GetOutputFormat: Applying output format settings
0064431: 6169391104: Playback: CAutoConfigureAudioOutput::GetOutputFormat: 48 kHz 32bit 4ch
0064431: 6169391104: Playback: CAutoConfigureAudioOutput::GetOutputFormat: Finish (0 ms)
0064436: 6179614720: Database: JRAnalyzerFile::GetImage: Finish (4 ms)
0064438: 6179614720: Playback: CPlayerZoneDisplayInfoLoadImageThread::Thread: Image: 000000013D8E6E30
0064438: 6179614720: Playback: CPlayerZoneDisplayInfoLoadImageThread::Thread: Finish (32 ms)
0064444: 6127497216: Playback: CCoreAudioPlugin::Open: Start
0064446: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Start
0064446: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Default audio output format: 48 kHz 32bit 2ch
0064447: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Output device name: iMac Speakers
0064447: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Output device UID: BuiltInSpeakerDevice
0064448: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Physical format 0: Format=PCM, Samplerate=96000, Bits=32, Flags= +Float +Packed, Padding=0
0064448: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Physical format 1: Format=PCM, Samplerate=88200, Bits=32, Flags= +Float +Packed, Padding=0
0064448: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Physical format 2: Format=PCM, Samplerate=48000, Bits=32, Flags= +Float +Packed, Padding=0
0064448: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Physical format 3: Format=PCM, Samplerate=44100, Bits=32, Flags= +Float +Packed, Padding=0
0064448: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Could not open output device BuiltInSpeakerDevice in AC3 mode
0064448: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Failed (caught handled exception)
0064448: 6127497216: Playback: CCoreAudioPlugin::ShutdownCoreAudio: Start
0064448: 6127497216: Playback: CCoreAudioPlugin::ShutdownCoreAudio: Releasing interfaces
0064448: 6127497216: Playback: CCoreAudioPlugin::ShutdownCoreAudio: Original Bits: 32
0064448: 6127497216: Playback: CCoreAudioPlugin::ShutdownCoreAudio: Current Bits: 32
0064448: 6127497216: Playback: CCoreAudioPlugin::ShutdownCoreAudio: Set back to original format successfully.  Looped: 0 times.
0064448: 6127497216: Playback: CCoreAudioPlugin::ShutdownCoreAudio: Finish (0 ms)
0064448: 6127497216: Playback: CCoreAudioPlugin::StartCoreAudio: Finish (2 ms)