diff --git a/audio/aidl/default/include/core-impl/StreamPrimary.h b/audio/aidl/default/include/core-impl/StreamPrimary.h
index 145c3c4..8d5c57d 100644
--- a/audio/aidl/default/include/core-impl/StreamPrimary.h
+++ b/audio/aidl/default/include/core-impl/StreamPrimary.h
@@ -36,7 +36,7 @@
     std::vector<alsa::DeviceProfile> getDeviceProfiles() override;
 
     const bool mIsAsynchronous;
-    long mStartTimeNs = 0;
+    int64_t mStartTimeNs = 0;
     long mFramesSinceStart = 0;
     bool mSkipNextTransfer = false;
 };
diff --git a/audio/aidl/default/include/core-impl/StreamRemoteSubmix.h b/audio/aidl/default/include/core-impl/StreamRemoteSubmix.h
index cc06881..477c30e 100644
--- a/audio/aidl/default/include/core-impl/StreamRemoteSubmix.h
+++ b/audio/aidl/default/include/core-impl/StreamRemoteSubmix.h
@@ -64,7 +64,7 @@
     // 5ms between two read attempts when pipe is empty
     static constexpr int kReadAttemptSleepUs = 5000;
 
-    long mStartTimeNs = 0;
+    int64_t mStartTimeNs = 0;
     long mFramesSinceStart = 0;
     int mReadErrorCount = 0;
 };
diff --git a/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp b/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp
index df706ac..3ee354b 100644
--- a/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp
+++ b/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp
@@ -138,7 +138,7 @@
                                     : outWrite(buffer, frameCount, actualFrameCount));
     const long bufferDurationUs =
             (*actualFrameCount) * MICROS_PER_SECOND / mContext.getSampleRate();
-    const long totalDurationUs = (::android::uptimeNanos() - mStartTimeNs) / NANOS_PER_MICROSECOND;
+    const auto totalDurationUs = (::android::uptimeNanos() - mStartTimeNs) / NANOS_PER_MICROSECOND;
     mFramesSinceStart += *actualFrameCount;
     const long totalOffsetUs =
             mFramesSinceStart * MICROS_PER_SECOND / mContext.getSampleRate() - totalDurationUs;
@@ -274,8 +274,8 @@
     char* buff = (char*)buffer;
     size_t actuallyRead = 0;
     long remainingFrames = frameCount;
-    const long deadlineTimeNs = ::android::uptimeNanos() +
-                                getDelayInUsForFrameCount(frameCount) * NANOS_PER_MICROSECOND;
+    const int64_t deadlineTimeNs = ::android::uptimeNanos() +
+                                   getDelayInUsForFrameCount(frameCount) * NANOS_PER_MICROSECOND;
     while (remainingFrames > 0) {
         ssize_t framesRead = source->read(buff, remainingFrames);
         LOG(VERBOSE) << __func__ << ": frames read " << framesRead;