SuperCollider执行Routine后无法发声及Jack服务器异常求助

环境信息 #

• SuperCollider版本：3.13.0
• 操作系统：Void Linux
• 架构：i686
• 配置：nvim搭配scnvim
• Jack版本：1.9.22

问题触发过程 #

我在Routine中使用循环触发声音，但忘记添加.wait。立即停止SClang解释器，等待操作完成后重启了系统。

重启后启动Jack（jackd -d alsa）并运行SuperCollider，首次执行该Routine时一切正常，但停止Routine后，scsynth服务器虽显示节点正常却无法发声。关闭Jack时出现以下错误日志：

Jack main caught signal 2
Cannot write socket fd = 18 err = Broken pipe
CheckRes error
Could not write notification
ClientNotify fails name = system notification = 1 val1 = 0 val2 = 0
Released audio card Audio0
audio_reservation_finish

若通过SuperCollider的s.boot启动Jack，会出现同样的发声问题，且Jack服务器无法停止：jack_control exit返回--exit，jack_control status显示stopped，但qjackctl显示Jack仍在运行，启动新服务器时提示'default' server already active。

此外，s.quit也无法关闭scsynth服务器。手动重启sclang后，scsynth仍在运行：无需启动即可发声，但再次执行Routine并停止后，又无法播放任何声音。

该问题似乎源于SuperCollider：当SC无法发声时，Audacity等其他程序可通过Jack服务器正常播放音频。

问题总结：SuperCollider可正常播放各类合成器，但Routine仅能执行一次；执行后无法播放任何声音（包括再次执行该Routine）。

涉事Routine代码 #

(
var bpm, beat, tatum, map;
s = Server.default;
bpm = 130;
beat = 60 / bpm;
tatum = beat / 4;

map = Dictionary[
  $k -> \kick, // kick is a synth!
];

Routine({
  loop {
    "kkkkkk".do { |character|
      if(character == $.) {
        tatum.wait;
        } {
          if(map[character].notNil) {
            s.bind { Synth(map[character]); 
            tatum.wait;
          };
        };
      };
    };
  };
}).play;
)

我已尝试以下操作：

1. 重新初始化Jack和scsynth服务器
2. 重新初始化sclang
3. 重新安装Jack包
4. 重新安装SuperCollider包
5. 多次重启系统

以上操作均未解决问题。

补充：若先启动scsynth，SuperCollider输出窗口无错误信息。

2024年6月24日补充 #

如前所述，先启动Jack再启动scsynth时，Routine可正常执行一次，第二次执行失败。我尝试在依次运行s.boot和s.quit时开启Jack verbose日志，首次启动正常，第二次启动时服务器无法启动且Jack立即崩溃，完整Jack日志如下：

Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: JackDriver::Open capture_driver_name = hw:0
Jack: JackDriver::Open playback_driver_name = hw:0
Jack: Check protocol client = 9 server = 9
Jack: JackEngine::ClientInternalOpen: name = system
Jack: JackEngine::AllocateRefNum ref = 0
Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_system val = 0
Jack: JackEngine::NotifyAddClient: name = system
Jack: JackGraphManager::SetBufferSize size = 1024
Jack: JackConnectionManager::DirectConnect first: ref1 = 0 ref2 = 0
Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Jack: JackDriver::SetupDriverSync driver sem in flush mode
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackSocketServerChannel::Open
Jack: JackServerSocket::Bind : addr.sun_path /dev/shm/jack_default_1000_0
Jack: JackSocketServerChannel::BuildPoolTable size = 1
Jack: JackEngine::Open
Jack: JackClientSocket::Connect : addr.sun_path /dev/shm/jack_default_1000_0
Jack: JackEngine::ClientInternalOpen: name = freewheel
Jack: JackEngine::AllocateRefNum ref = 1
Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_freewheel val = 0
Jack: JackEngine::NotifyAddClient: name = freewheel
Jack: JackDriver::ClientNotify ref = 1 driver = system name = freewheel notify = 0
Jack: JackDriver::ClientNotify ref = 0 driver = freewheel name = system notify = 0
Jack: JackConnectionManager::DirectConnect first: ref1 = 1 ref2 = 1
Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 1 ref2 = 1
Jack: JackDriver::SetupDriverSync driver sem in flush mode
Jack: JackGraphManager::SetBufferSize size = 1024
Jack: JackAlsaDriver::Attach fBufferSize 1024 fSampleRate 48000
Jack: JackEngine::PortRegister ref = 0 name = system:capture_1 type = 32 bit float mono audio flags = 22 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 1 name = system:capture_1 type = 32 bit float mono audio
Jack: JackConnectionManager::AddOutputPort ref = 0 port = 1
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAlsaDriver::Attach fCapturePortList[i] 1 
Jack: JackEngine::PortRegister ref = 0 name = system:capture_2 type = 32 bit float mono audio flags = 22 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 2 name = system:capture_2 type = 32 bit float mono audio
Jack: JackConnectionManager::AddOutputPort ref = 0 port = 2
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAlsaDriver::Attach fCapturePortList[i] 2 
Jack: JackEngine::PortRegister ref = 0 name = system:playback_1 type = 32 bit float mono audio flags = 21 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 3 name = system:playback_1 type = 32 bit float mono audio
Jack: JackConnectionManager::AddInputPort ref = 0 port = 3
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAlsaDriver::Attach fPlaybackPortList[i] 3 
Jack: JackEngine::PortRegister ref = 0 name = system:playback_2 type = 32 bit float mono audio flags = 21 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 4 name = system:playback_2 type = 32 bit float mono audio
Jack: JackConnectionManager::AddInputPort ref = 0 port = 4
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAlsaDriver::Attach fPlaybackPortList[i] 4 
Jack: Clock source : system clock via clock_gettime
Jack: JackServer::Start
Jack: JackThreadedDriver::Start
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: JackThreadedDriver::Init real-time
Jack: JackPosixThread::AcquireRealTimeImp priority = 10
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: JackSocketServerChannel::ClientCreate socket
Jack: JackSocketServerChannel::BuildPoolTable size = 2
Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 1 fd = 15
Jack: JackRequest::Notification
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackEngine::ClientNotify: no callback for notification = 4
Jack: JackEngine::ClientNotify: no callback for notification = 4

---- S.BOOT IS EVALUATED: JACK DIES ----

Jack: JackSocketServerChannel::ClientCreate socket
Jack: JackSocketServerChannel::BuildPoolTable size = 3
Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 1 fd = 15
Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 2 fd = 16
Jack: JackSocketServerChannel::Execute : poll client error err = Success
Jack: JackSocketServerChannel::ClientKill ref = -1 fd = 16
Jack: Client was not opened : probably correspond to server_check
Jack: JackClientSocket::Close
Jack: JackSocketServerChannel::BuildPoolTable size = 2
Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 1 fd = 15
Jack: JackSocketServerChannel::ClientCreate socket
Jack: JackSocketServerChannel::BuildPoolTable size = 3
Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 1 fd = 15
Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 2 fd = 16
Jack: JackRequest::ClientCheck
Jack: Check protocol client = 9 server = 9
Jack: JackRequest::ClientOpen
Segmentation fault

SuperCollider中的日志如下：

Booting server 'localhost' on address 127.0.0.1:57110.
Found 4 LADSPA plugins
Cannot read socket fd = 8 err = No such file or directory
CheckRes error
Could not read result type = 23
Cannot open SuperCollider client
JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
terminate called without an active exception
could not initialize audio.
Server 'localhost' exited with exit code 0.

2024年7月3日补充 #

我制作了两个视频展示问题：

• 示例1：执行Routine前可发声，执行后无法发声及Jack错误信息。
• 示例2：通过SC启动Jack导致故障，SC无法发声但Audacity可正常播放（该视频录制于示例1之后）。

内容的提问来源于stack exchange，提问作者Vestal