Google Speech API 抛出 无效的音频通道计数 Mac 机器上录制的音频异常。
我只是使用谷歌提供的示例应用程序。
com.google.api.gax.grpc.ApiException: io.grpc.StatusRuntimeException: INVALID_ARGUMENT: Invalid audio channel count
at com.google.api.gax.grpc.ExceptionTransformingCallable$ExceptionTransformingFuture.onFailure(ExceptionTransformingCallable.java:109)
at com.google.api.gax.core.ApiFutures$1.onFailure(ApiFutures.java:52)
at com.google.common.util.concurrent.Futures$6.run(Futures.java:1764)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:456)
at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:817)
at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:753)
at com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:634)
at io.grpc.stub.ClientCalls$GrpcFuture.setException(ClientCalls.java:466)
at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:442)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:481)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$600(ClientCallImpl.java:398)
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:513)
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
at io.grpc.internal.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:154)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: io.grpc.StatusRuntimeException: INVALID_ARGUMENT: Invalid audio channel count
at io.grpc.Status.asRuntimeException(Status.java:545)
... 13 more
这是否需要任何特殊配置?
此错误是什么意思?
在 Mac 上录制的音频很可能是立体声,但目前 API 似乎只支持 1 声道(单声道(音频。从文档的音频编码部分:
音频消息中发送的数据的音频编码。所有编码仅支持 1 声道(单声道(音频。
这里最简单的解决方案可能是使用 Audacity 之类的东西将您的样本转换为单声道。
Google Cloud 现在支持多声道,但我仍然遇到了这个问题,因为我使用了立体声音频文件,并且示例文档没有指定声道计数 ( audioChannelCount
(。您可以使用以下内容执行此操作,如 https://cloud.google.com/speech-to-text/docs/multi-channel 中所述
const config = {
encoding: `LINEAR16`,
languageCode: `en-US`,
audioChannelCount: 2,
enableSeparateRecognitionPerChannel: true,
};