diff --git a/sys/dev/sound/pcm/channel.c b/sys/dev/sound/pcm/channel.c
--- a/sys/dev/sound/pcm/channel.c
+++ b/sys/dev/sound/pcm/channel.c
@@ -966,9 +966,13 @@
 #if BYTE_ORDER == LITTLE_ENDIAN
 	{ "s32le", "s32", "32", AFMT_S32_LE },
 	{ "s32be",  NULL, NULL, AFMT_S32_BE },
+	{ "f32le", "f32", NULL, AFMT_F32_LE },
+	{ "f32be",  NULL, NULL, AFMT_F32_BE },
 #else
 	{ "s32le",  NULL, NULL, AFMT_S32_LE },
 	{ "s32be", "s32", "32", AFMT_S32_BE },
+	{ "f32le",  NULL, NULL, AFMT_F32_LE },
+	{ "f32be", "f32", NULL, AFMT_F32_BE },
 #endif
 	{ "u32le",  NULL, NULL, AFMT_U32_LE },
 	{ "u32be",  NULL, NULL, AFMT_U32_BE },
diff --git a/sys/dev/sound/pcm/feeder_format.c b/sys/dev/sound/pcm/feeder_format.c
--- a/sys/dev/sound/pcm/feeder_format.c
+++ b/sys/dev/sound/pcm/feeder_format.c
@@ -63,9 +63,13 @@
 __always_inline intpcm_t
 pcm_sample_read(uint8_t *src, uint32_t fmt, bool shift)
 {
+	float fv;
 	intpcm_t v;
 
 	fmt = AFMT_ENCODING(fmt);
+	if (fmt == AFMT_F32_LE || fmt == AFMT_F32_BE)
+		fpu_kern_enter(curthread, NULL, FPU_KERN_NOCTX);
+
 	switch (fmt) {
 #if BYTE_ORDER == LITTLE_ENDIAN
 	case AFMT_S16_LE:
@@ -94,6 +98,16 @@
 		v = INTPCM_T(src[3] | src[2] << 8 | src[1] << 16 |
 		    ((int8_t)src[0] ^ 0x80) << 24);
 		break;
+	case AFMT_F32_LE:
+		v = INTPCM_T(*(float *)src * (float)PCM_S32_MAX);
+		break;
+	case AFMT_F32_BE:
+		fv = *(float *)src;
+		memcpy(&v, &fv, sizeof(v));
+		v = __bswap32(v);
+		memcpy(&fv, &v, sizeof(fv));
+		v = INTPCM_T(fv * (float)PCM_S32_MAX);
+		break;
 #else	/* BYTE_ORDER != LITTLE_ENDIAN */
 	case AFMT_S16_LE:
 		v = INTPCM_T(src[0] | (int8_t)src[1] << 8);
@@ -121,6 +135,16 @@
 	case AFMT_U32_BE:
 		v = INTPCM_T((int32_t)(*(uint32_t *)src) ^ 0x80000000);
 		break;
+	case AFMT_F32_LE:
+		fv = *(float *)src;
+		memcpy(&v, &fv, sizeof(v));
+		v = __bswap32(v);
+		memcpy(&fv, &v, sizeof(fv));
+		v = INTPCM_T(fv * (float)PCM_S32_MAX);
+		break;
+	case AFMT_F32_BE:
+		v = INTPCM_T(*(float *)src * (float)PCM_S32_MAX);
+		break;
 #endif	/* BYTE_ORDER == LITTLE_ENDIAN */
 	case AFMT_S8:
 		v = INTPCM_T(*(int8_t *)src);
@@ -157,6 +181,9 @@
 		break;
 	}
 
+	if (fmt == AFMT_F32_LE || fmt == AFMT_F32_BE)
+		fpu_kern_leave(curthread, NULL);
+
 #ifndef SND_PCM_64
 	v >>= PCM_FXSHIFT;
 #endif
@@ -170,6 +197,9 @@
 __always_inline void
 pcm_sample_write(uint8_t *dst, intpcm_t v, uint32_t fmt, bool shift)
 {
+	uint8_t *tmp;
+	float fv;
+
 	fmt = AFMT_ENCODING(fmt);
 
 	if (shift)
@@ -179,6 +209,9 @@
 	v <<= PCM_FXSHIFT;
 #endif
 
+	if (fmt == AFMT_F32_LE || fmt == AFMT_F32_BE)
+		fpu_kern_enter(curthread, NULL, FPU_KERN_NOCTX);
+
 	switch (fmt) {
 #if BYTE_ORDER == LITTLE_ENDIAN
 	case AFMT_S16_LE:
@@ -213,6 +246,17 @@
 		dst[1] = v >> 16;
 		dst[0] = (v >> 24) ^ 0x80;
 		break;
+	case AFMT_F32_LE:
+		*(float *)dst = (float)v / (float)PCM_S32_MAX;
+		break;
+	case AFMT_F32_BE:
+		fv = (float)v / (float)PCM_S32_MAX;
+		tmp = (uint8_t *)&fv;
+		dst[0] = tmp[3];
+		dst[1] = tmp[2];
+		dst[2] = tmp[1];
+		dst[3] = tmp[0];
+		break;
 #else	/* BYTE_ORDER != LITTLE_ENDIAN */
 	case AFMT_S16_LE:
 		dst[0] = v;
@@ -246,6 +290,17 @@
 	case AFMT_U32_BE:
 		*(uint32_t *)dst = v ^ 0x80000000;
 		break;
+	case AFMT_F32_LE:
+		fv = (float)v / (float)PCM_S32_MAX;
+		tmp = (uint8_t *)&fv;
+		dst[0] = tmp[3];
+		dst[1] = tmp[2];
+		dst[2] = tmp[1];
+		dst[3] = tmp[0];
+		break;
+	case AFMT_F32_BE:
+		*(float *)dst = (float)v / (float)PCM_S32_MAX;
+		break;
 #endif	/* BYTE_ORDER == LITTLE_ENDIAN */
 	case AFMT_S8:
 		*(int8_t *)dst = v;
@@ -286,6 +341,9 @@
 		printf("%s(): unknown format: 0x%08x\n", __func__, fmt);
 		break;
 	}
+
+	if (fmt == AFMT_F32_LE || fmt == AFMT_F32_BE)
+		fpu_kern_leave(curthread, NULL);
 }
 
 static int
diff --git a/sys/dev/sound/pcm/feeder_mixer.c b/sys/dev/sound/pcm/feeder_mixer.c
--- a/sys/dev/sound/pcm/feeder_mixer.c
+++ b/sys/dev/sound/pcm/feeder_mixer.c
@@ -67,10 +67,12 @@
 #if BYTE_ORDER == LITTLE_ENDIAN || defined(SND_FEEDER_MULTIFORMAT)
 FEEDMIXER_DECLARE(S, 16, LE)
 FEEDMIXER_DECLARE(S, 32, LE)
+FEEDMIXER_DECLARE(F, 32, LE)
 #endif
 #if BYTE_ORDER == BIG_ENDIAN || defined(SND_FEEDER_MULTIFORMAT)
 FEEDMIXER_DECLARE(S, 16, BE)
 FEEDMIXER_DECLARE(S, 32, BE)
+FEEDMIXER_DECLARE(F, 32, BE)
 #endif
 #ifdef SND_FEEDER_MULTIFORMAT
 FEEDMIXER_DECLARE(S,  8, NE)
@@ -102,10 +104,12 @@
 #if BYTE_ORDER == LITTLE_ENDIAN || defined(SND_FEEDER_MULTIFORMAT)
 	FEEDMIXER_ENTRY(S, 16, LE),
 	FEEDMIXER_ENTRY(S, 32, LE),
+	FEEDMIXER_ENTRY(F, 32, LE),
 #endif
 #if BYTE_ORDER == BIG_ENDIAN || defined(SND_FEEDER_MULTIFORMAT)
 	FEEDMIXER_ENTRY(S, 16, BE),
 	FEEDMIXER_ENTRY(S, 32, BE),
+	FEEDMIXER_ENTRY(F, 32, BE),
 #endif
 #ifdef SND_FEEDER_MULTIFORMAT
 	FEEDMIXER_ENTRY(S, 24, LE),
diff --git a/sys/dev/sound/pcm/pcm.h b/sys/dev/sound/pcm/pcm.h
--- a/sys/dev/sound/pcm/pcm.h
+++ b/sys/dev/sound/pcm/pcm.h
@@ -120,6 +120,7 @@
 #define PCM_CLAMP_U16(val)	PCM_CLAMP_S16(val)
 #define PCM_CLAMP_U24(val)	PCM_CLAMP_S24(val)
 #define PCM_CLAMP_U32(val)	PCM_CLAMP_S32(val)
+#define PCM_CLAMP_F32(val)	PCM_CLAMP_S32(val)
 
 extern __always_inline intpcm_t pcm_sample_read(uint8_t *, uint32_t, bool);
 extern __always_inline void pcm_sample_write(uint8_t *, intpcm_t, uint32_t, bool);
diff --git a/sys/dev/sound/pcm/sound.h b/sys/dev/sound/pcm/sound.h
--- a/sys/dev/sound/pcm/sound.h
+++ b/sys/dev/sound/pcm/sound.h
@@ -161,13 +161,15 @@
 	(((var)<(low))? (low) : ((var)>(high))? (high) : (var))
 
 /* make figuring out what a format is easier. got AFMT_STEREO already */
-#define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE)
+#define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE | \
+			AFMT_F32_LE | AFMT_F32_BE)
 #define AFMT_24BIT (AFMT_S24_LE | AFMT_S24_BE | AFMT_U24_LE | AFMT_U24_BE)
 #define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE)
 #define AFMT_G711  (AFMT_MU_LAW | AFMT_A_LAW)
 #define AFMT_8BIT (AFMT_G711 | AFMT_U8 | AFMT_S8)
 #define AFMT_SIGNED (AFMT_S32_LE | AFMT_S32_BE | AFMT_S24_LE | AFMT_S24_BE | \
-			AFMT_S16_LE | AFMT_S16_BE | AFMT_S8)
+			AFMT_S16_LE | AFMT_S16_BE | AFMT_S8 | AFMT_F32_LE | \
+			AFMT_F32_BE)
 #define AFMT_BIGENDIAN (AFMT_S32_BE | AFMT_U32_BE | AFMT_S24_BE | AFMT_U24_BE | \
 			AFMT_S16_BE | AFMT_U16_BE)
 
diff --git a/sys/sys/soundcard.h b/sys/sys/soundcard.h
--- a/sys/sys/soundcard.h
+++ b/sys/sys/soundcard.h
@@ -184,6 +184,8 @@
 #define AFMT_S24_BE	0x00020000	/* Big endian signed 24-bit */
 #define AFMT_U24_LE	0x00040000	/* Little endian unsigned 24-bit */
 #define AFMT_U24_BE	0x00080000	/* Big endian unsigned 24-bit */
+#define AFMT_F32_LE	0x10000000	/* Little endian 32-bit floating point */
+#define AFMT_F32_BE	0x20000000	/* Big endian 32-bit floating point */
 
 /* Machine dependent AFMT_* definitions. */
 #if BYTE_ORDER == LITTLE_ENDIAN
@@ -199,6 +201,7 @@
 #define AFMT_U16_OE	AFMT_U16_BE
 #define AFMT_U24_OE	AFMT_U24_BE
 #define AFMT_U32_OE	AFMT_U32_BE
+#define AFMT_F32_NE	AFMT_F32_LE
 #else
 #define AFMT_S16_OE	AFMT_S16_LE
 #define AFMT_S24_OE	AFMT_S24_LE
@@ -212,8 +215,11 @@
 #define AFMT_U16_NE	AFMT_U16_BE
 #define AFMT_U24_NE	AFMT_U24_BE
 #define AFMT_U32_NE	AFMT_U32_BE
+#define AFMT_F32_NE	AFMT_F32_BE
 #endif
 
+#define AFMT_FLOAT	AFMT_F32_NE	/* compatibility alias */
+
 #define AFMT_STEREO	0x10000000	/* can do/want stereo	*/
 
 /*