diff --git a/media/libmedia/AudioRecord.cpp b/media/libmedia/AudioRecord.cpp
index a9ba154..541cb51 100644
--- a/media/libmedia/AudioRecord.cpp
+++ b/media/libmedia/AudioRecord.cpp
@@ -52,7 +52,7 @@
     }
 
     if (size == 0) {
-        ALOGE("Unsupported configuration: sampleRate %u, format %d, channelMask %#x",
+        ALOGE("Unsupported configuration: sampleRate %u, format %#x, channelMask %#x",
             sampleRate, format, channelMask);
         return BAD_VALUE;
     }
@@ -191,12 +191,12 @@
 
     // validate parameters
     if (!audio_is_valid_format(format)) {
-        ALOGE("Invalid format %d", format);
+        ALOGE("Invalid format %#x", format);
         return BAD_VALUE;
     }
     // Temporary restriction: AudioFlinger currently supports 16-bit PCM only
     if (format != AUDIO_FORMAT_PCM_16_BIT) {
-        ALOGE("Format %d is not supported", format);
+        ALOGE("Format %#x is not supported", format);
         return BAD_VALUE;
     }
     mFormat = format;
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index 1ab94fa..51dba7b 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -370,7 +370,7 @@
         }
         inBuffSize = af->getInputBufferSize(sampleRate, format, channelMask);
         if (inBuffSize == 0) {
-            ALOGE("AudioSystem::getInputBufferSize failed sampleRate %d format %x channelMask %x",
+            ALOGE("AudioSystem::getInputBufferSize failed sampleRate %d format %#x channelMask %x",
                     sampleRate, format, channelMask);
             return BAD_VALUE;
         }
@@ -481,7 +481,7 @@
 
         OutputDescriptor *outputDesc =  new OutputDescriptor(*desc);
         gOutputs.add(ioHandle, outputDesc);
-        ALOGV("ioConfigChanged() new output samplingRate %u, format %d channel mask %#x frameCount %u "
+        ALOGV("ioConfigChanged() new output samplingRate %u, format %#x channel mask %#x frameCount %u "
                 "latency %d",
                 outputDesc->samplingRate, outputDesc->format, outputDesc->channelMask,
                 outputDesc->frameCount, outputDesc->latency);
@@ -505,7 +505,7 @@
         if (param2 == NULL) break;
         desc = (const OutputDescriptor *)param2;
 
-        ALOGV("ioConfigChanged() new config for output %d samplingRate %u, format %d channel mask %#x "
+        ALOGV("ioConfigChanged() new config for output %d samplingRate %u, format %#x channel mask %#x "
                 "frameCount %d latency %d",
                 ioHandle, desc->samplingRate, desc->format,
                 desc->channelMask, desc->frameCount, desc->latency);
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index cfd79bc..41b4845 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -273,7 +273,7 @@
 
     // validate parameters
     if (!audio_is_valid_format(format)) {
-        ALOGE("Invalid format %d", format);
+        ALOGE("Invalid format %#x", format);
         return BAD_VALUE;
     }
     mFormat = format;
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 7c73b19..e15e632 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -508,7 +508,7 @@
     // client is responsible for conversion of 8-bit PCM to 16-bit PCM,
     // and we don't yet support 8.24 or 32-bit PCM
     if (audio_is_linear_pcm(format) && format != AUDIO_FORMAT_PCM_16_BIT) {
-        ALOGE("createTrack() invalid format %d", format);
+        ALOGE("createTrack() invalid format %#x", format);
         lStatus = BAD_VALUE;
         goto Exit;
     }
@@ -1299,7 +1299,7 @@
     }
 
     if (format != AUDIO_FORMAT_PCM_16_BIT) {
-        ALOGE("openRecord() invalid format %d", format);
+        ALOGE("openRecord() invalid format %#x", format);
         lStatus = BAD_VALUE;
         goto Exit;
     }
@@ -1746,7 +1746,7 @@
     audio_stream_in_t *inStream = NULL;
     status_t status = inHwHal->open_input_stream(inHwHal, id, *pDevices, &config,
                                         &inStream);
-    ALOGV("openInput() openInputStream returned input %p, SamplingRate %d, Format %d, Channels %x, "
+    ALOGV("openInput() openInputStream returned input %p, SamplingRate %d, Format %#x, Channels %x, "
             "status %d",
             inStream,
             config.sample_rate,
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 24df473..179c458 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -1276,8 +1276,8 @@
     if (mType == DIRECT) {
         if ((format & AUDIO_FORMAT_MAIN_MASK) == AUDIO_FORMAT_PCM) {
             if (sampleRate != mSampleRate || format != mFormat || channelMask != mChannelMask) {
-                ALOGE("createTrack_l() Bad parameter: sampleRate %u format %d, channelMask 0x%08x "
-                        "for output %p with format %d",
+                ALOGE("createTrack_l() Bad parameter: sampleRate %u format %#x, channelMask 0x%08x "
+                        "for output %p with format %#x",
                         sampleRate, format, channelMask, mOutput, mFormat);
                 lStatus = BAD_VALUE;
                 goto Exit;
@@ -1285,16 +1285,16 @@
         }
     } else if (mType == OFFLOAD) {
         if (sampleRate != mSampleRate || format != mFormat || channelMask != mChannelMask) {
-            ALOGE("createTrack_l() Bad parameter: sampleRate %d format %d, channelMask 0x%08x \""
-                    "for output %p with format %d",
+            ALOGE("createTrack_l() Bad parameter: sampleRate %d format %#x, channelMask 0x%08x \""
+                    "for output %p with format %#x",
                     sampleRate, format, channelMask, mOutput, mFormat);
             lStatus = BAD_VALUE;
             goto Exit;
         }
     } else {
         if ((format & AUDIO_FORMAT_MAIN_MASK) != AUDIO_FORMAT_PCM) {
-                ALOGE("createTrack_l() Bad parameter: format %d \""
-                        "for output %p with format %d",
+                ALOGE("createTrack_l() Bad parameter: format %#x \""
+                        "for output %p with format %#x",
                         format, mOutput, mFormat);
                 lStatus = BAD_VALUE;
                 goto Exit;
@@ -1652,10 +1652,10 @@
     mChannelCount = popcount(mChannelMask);
     mFormat = mOutput->stream->common.get_format(&mOutput->stream->common);
     if (!audio_is_valid_format(mFormat)) {
-        LOG_FATAL("HAL format %d not valid for output", mFormat);
+        LOG_FATAL("HAL format %#x not valid for output", mFormat);
     }
     if ((mType == MIXER || mType == DUPLICATING) && mFormat != AUDIO_FORMAT_PCM_16_BIT) {
-        LOG_FATAL("HAL format %d not supported for mixed output; must be AUDIO_FORMAT_PCM_16_BIT",
+        LOG_FATAL("HAL format %#x not supported for mixed output; must be AUDIO_FORMAT_PCM_16_BIT",
                 mFormat);
     }
     mFrameSize = audio_stream_frame_size(&mOutput->stream->common);
@@ -5361,7 +5361,7 @@
     mChannelCount = popcount(mChannelMask);
     mFormat = mInput->stream->common.get_format(&mInput->stream->common);
     if (mFormat != AUDIO_FORMAT_PCM_16_BIT) {
-        ALOGE("HAL format %d not supported; must be AUDIO_FORMAT_PCM_16_BIT", mFormat);
+        ALOGE("HAL format %#x not supported; must be AUDIO_FORMAT_PCM_16_BIT", mFormat);
     }
     mFrameSize = audio_stream_frame_size(&mInput->stream->common);
     mBufferSize = mInput->stream->common.get_buffer_size(&mInput->stream->common);