diff --git a/src/audio/src/src_common.c b/src/audio/src/src_common.c
index 36847afd4491..dc1a86c585e1 100644
--- a/src/audio/src/src_common.c
+++ b/src/audio/src/src_common.c
@@ -45,13 +45,13 @@
 LOG_MODULE_REGISTER(src, CONFIG_SOF_LOG_LEVEL);
 
 /* Calculates buffers to allocate for a SRC mode */
-static int src_buffer_lengths(struct comp_dev *dev, struct comp_data *cd, int nch)
+static int src_buffer_lengths(struct comp_dev *dev, struct comp_data *cd, unsigned int nch)
 {
 	const struct src_stage *stage1;
 	const struct src_stage *stage2;
 	struct src_param *a;
 	int fs_in, fs_out;
-	int source_frames;
+	size_t source_frames;
 	int r1, n;
 
 	a = &cd->param;
@@ -240,13 +240,13 @@ static int src_2s(struct comp_data *cd,
 	void *sbuf_end_addr = &cd->delay_lines[cd->param.sbuf_length];
 	size_t sbuf_size = cd->param.sbuf_length * sizeof(int32_t);
 	/* chan sink == chan src therefore we only need to use one*/
-	int nch = source_get_channels(source);
+	unsigned int nch = source_get_channels(source);
 	int sbuf_free = cd->param.sbuf_length - cd->sbuf_avail;
-	int avail_b = source_get_data_available(source);
-	int free_b = sink_get_free_size(sink);
-	int sz = cd->sample_container_bytes;
-	uint32_t source_frag_size = cd->param.blk_in * source_get_frame_bytes(source);
-	uint32_t sink_frag_size = cd->param.blk_out * sink_get_frame_bytes(sink);
+	size_t avail_b = source_get_data_available(source);
+	size_t free_b = sink_get_free_size(sink);
+	size_t sz = cd->sample_container_bytes;
+	size_t source_frag_size = cd->param.blk_in * source_get_frame_bytes(source);
+	size_t sink_frag_size = cd->param.blk_out * sink_get_frame_bytes(sink);
 
 	ret = source_get_data(source, source_frag_size,
 			      &s1.x_rptr, (void const **)&source_buffer_start, &s1.x_size);
@@ -333,8 +333,8 @@ static int src_1s(struct comp_data *cd, struct sof_source *source,
 	int ret;
 	uint8_t const *source_buffer_start;
 	uint8_t *sink_buffer_start;
-	uint32_t source_frag_size = cd->param.blk_in * source_get_frame_bytes(source);
-	uint32_t sink_frag_size = cd->param.blk_out * sink_get_frame_bytes(sink);
+	size_t source_frag_size = cd->param.blk_in * source_get_frame_bytes(source);
+	size_t sink_frag_size = cd->param.blk_out * sink_get_frame_bytes(sink);
 
 	ret = source_get_data(source, source_frag_size,
 			      &s1.x_rptr, (void const **)&source_buffer_start, &s1.x_size);
@@ -369,7 +369,7 @@ static int src_1s(struct comp_data *cd, struct sof_source *source,
 int src_copy_sxx(struct comp_data *cd, struct sof_source *source,
 		 struct sof_sink *sink)
 {
-	int frames = cd->param.blk_in;
+	size_t frames = cd->param.blk_in;
 
 	switch (source_get_frm_fmt(source)) {
 	case SOF_IPC_FRAME_S16_LE:
@@ -436,8 +436,8 @@ static bool src_get_copy_limits(struct comp_data *cd,
 	struct src_param *sp;
 	const struct src_stage *s1;
 	const struct src_stage *s2;
-	int frames_src;
-	int frames_snk;
+	size_t frames_src;
+	size_t frames_snk;
 
 	/* Get SRC parameters */
 	sp = &cd->param;
@@ -501,7 +501,7 @@ int src_params_general(struct processing_module *mod,
 
 	comp_info(dev, "source_rate = %u, sink_rate = %u",
 		  cd->source_rate, cd->sink_rate);
-	comp_dbg(dev, "sample_container_bytes = %d, channels = %u, dev->frames = %u",
+	comp_dbg(dev, "sample_container_bytes = %zu, channels = %u, dev->frames = %u",
 		 cd->sample_container_bytes, cd->channels_count, dev->frames);
 	if (!cd->sink_rate) {
 		comp_err(dev, "zero sink rate");
diff --git a/src/audio/src/src_common.h b/src/audio/src/src_common.h
index 98f29a263131..c2112deb1ac2 100644
--- a/src/audio/src/src_common.h
+++ b/src/audio/src/src_common.h
@@ -23,8 +23,8 @@ struct src_stage {
 	int num_of_subfilters;
 	int subfilter_length;
 	int filter_length;
-	int blk_in;
-	int blk_out;
+	size_t blk_in;
+	size_t blk_out;
 	int halfband;
 	int shift;
 	const void *coefs; /* Can be int16_t or int32_t depending on config */
@@ -38,8 +38,8 @@ struct src_param {
 	int sbuf_length;
 	int src_multich;
 	int total;
-	int blk_in;
-	int blk_out;
+	size_t blk_in;
+	size_t blk_out;
 	int stage1_times;
 	int stage2_times;
 	int idx_in;
@@ -48,7 +48,7 @@ struct src_param {
 	int num_out_fs;
 	int max_fir_delay_size_xnch;
 	int max_out_delay_size_xnch;
-	int nch;
+	unsigned int nch;
 	const struct src_stage *stage1;
 	const struct src_stage *stage2;
 	const int *in_fs;
@@ -73,7 +73,7 @@ struct polyphase_src {
 };
 
 struct src_stage_prm {
-	int nch;
+	unsigned int nch;
 	int times;
 	void const *x_rptr;
 	void const *x_end_addr;
@@ -160,10 +160,10 @@ struct comp_data {
 	int32_t const *sbuf_r_ptr;
 	int sbuf_avail;
 	int data_shift;
-	int source_frames;
-	int sink_frames;
-	int sample_container_bytes;
-	int channels_count;
+	size_t source_frames;
+	size_t sink_frames;
+	size_t sample_container_bytes;
+	unsigned int channels_count;
 	int (*src_func)(struct comp_data *cd, struct sof_source *source,
 			struct sof_sink *sink);
 	void (*polyphase_func)(struct src_stage_prm *s);
diff --git a/src/audio/src/src_generic.c b/src/audio/src/src_generic.c
index 3072fe1f741c..dee77c989fbb 100644
--- a/src/audio/src/src_generic.c
+++ b/src/audio/src/src_generic.c
@@ -22,18 +22,18 @@
 
 static inline void fir_filter_generic(int32_t *rp, const void *cp, int32_t *wp0,
 				      int32_t *fir_start, int32_t *fir_end,
-				      const int taps_x_nch,
+				      const size_t taps_x_nch,
 				      const int shift, const int nch)
 {
 	int64_t y0;
 	int64_t y1;
 	int32_t *data;
 	const int16_t *coef;
-	int i;
+	size_t i;
 	int j;
-	int n1;
-	int n2;
-	int frames;
+	size_t n1;
+	size_t n2;
+	size_t frames;
 	const int qshift = 15 + shift; /* Q2.46 -> Q2.31 */
 	const int32_t rnd = 1 << (qshift - 1); /* Half LSB */
 	int32_t *d = rp;
@@ -115,7 +115,7 @@ static inline void fir_filter_generic(int32_t *rp, const void *cp, int32_t *wp0,
 
 static inline void fir_filter_generic(int32_t *rp, const void *cp, int32_t *wp0,
 				      int32_t *fir_start, int32_t *fir_end,
-				      const int taps_x_nch, const int shift,
+				      const size_t taps_x_nch, const int shift,
 				      const int nch)
 {
 	int64_t y0;
@@ -123,11 +123,11 @@ static inline void fir_filter_generic(int32_t *rp, const void *cp, int32_t *wp0,
 	int32_t scaled_coef;
 	int32_t *data;
 	const int32_t *coef;
-	int i;
+	size_t i;
 	int j;
-	int frames;
-	int n1;
-	int n2;
+	size_t frames;
+	size_t n1;
+	size_t n2;
 
 	const int qshift = 23 + shift; /* Qx.54 -> Qx.31 */
 	const int32_t rnd = 1 << (qshift - 1); /* Half LSB */
@@ -212,12 +212,12 @@ static inline void fir_filter_generic(int32_t *rp, const void *cp, int32_t *wp0,
 #if CONFIG_FORMAT_S24LE || CONFIG_FORMAT_S32LE
 void src_polyphase_stage_cir(struct src_stage_prm *s)
 {
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_wrap_fir;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_wrap_fir;
+	size_t n_min;
 	int32_t *rp;
 	int32_t *wp;
 
@@ -229,13 +229,13 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
-	const int rewind = nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
-	const int nch_x_idm = nch * cfg->idm;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t rewind = nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
+	const size_t nch_x_idm = nch * cfg->idm;
 	const size_t fir_size = fir->fir_delay_size * sizeof(int32_t);
-	const int taps_x_nch = cfg->subfilter_length * nch;
+	const size_t taps_x_nch = cfg->subfilter_length * nch;
 	int32_t *x_rptr = (int32_t *)s->x_rptr;
 	int32_t *y_wptr = (int32_t *)s->y_wptr;
 	int32_t *x_end_addr = (int32_t *)s->x_end_addr;
@@ -310,12 +310,12 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 #if CONFIG_FORMAT_S16LE
 void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 {
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_wrap_fir;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_wrap_fir;
+	size_t n_min;
 	int32_t *rp;
 	int32_t *wp;
 
@@ -327,13 +327,13 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
-	const int rewind = nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
-	const int nch_x_idm = nch * cfg->idm;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t rewind = nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
+	const size_t nch_x_idm = nch * cfg->idm;
 	const size_t fir_size = fir->fir_delay_size * sizeof(int32_t);
-	const int taps_x_nch = cfg->subfilter_length * nch;
+	const size_t taps_x_nch = cfg->subfilter_length * nch;
 	int16_t *x_rptr = (int16_t *)s->x_rptr;
 	int16_t *y_wptr = (int16_t *)s->y_wptr;
 	int16_t *x_end_addr = (int16_t *)s->x_end_addr;
diff --git a/src/audio/src/src_hifi2ep.c b/src/audio/src/src_hifi2ep.c
index 73bf0797c91c..6e7cd6b28d2a 100644
--- a/src/audio/src/src_hifi2ep.c
+++ b/src/audio/src/src_hifi2ep.c
@@ -307,11 +307,11 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	ae_q56s q;
 	ae_q32s *rp;
 	ae_q32s *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
 	int32_t *fir_end = &fir->fir_delay[fir->fir_delay_size];
@@ -319,9 +319,9 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	const char *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
@@ -432,11 +432,11 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	ae_p24x2s d;
 	ae_q32s *rp;
 	ae_q32s *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
 	int32_t *fir_end = &fir->fir_delay[fir->fir_delay_size];
@@ -444,9 +444,9 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	const char *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
diff --git a/src/audio/src/src_hifi3.c b/src/audio/src/src_hifi3.c
index 06a7b7aa75ba..830ca132728a 100644
--- a/src/audio/src/src_hifi3.c
+++ b/src/audio/src/src_hifi3.c
@@ -311,11 +311,11 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	ae_int32x2 q = AE_ZERO32();
 	ae_f32 *rp;
 	ae_f32 *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
 	int32_t *fir_end = &fir->fir_delay[fir->fir_delay_size];
@@ -323,9 +323,9 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
@@ -436,11 +436,11 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	ae_int16x4 d = AE_ZERO16();
 	ae_f32 *rp;
 	ae_f32 *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
@@ -449,9 +449,9 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
diff --git a/src/audio/src/src_hifi4.c b/src/audio/src/src_hifi4.c
index ad3b8583113f..9e7c3a196dfa 100644
--- a/src/audio/src/src_hifi4.c
+++ b/src/audio/src/src_hifi4.c
@@ -342,11 +342,11 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	ae_int32x2 q;
 	ae_f32 *rp;
 	ae_f32 *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
 	int32_t *fir_end = &fir->fir_delay[fir->fir_delay_size];
@@ -354,9 +354,9 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
@@ -466,11 +466,11 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	ae_int16x4 d = AE_ZERO16();
 	ae_f32 *rp;
 	ae_f32 *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
@@ -479,9 +479,9 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
diff --git a/src/audio/src/src_hifi5.c b/src/audio/src/src_hifi5.c
index 0adfc4796d25..b98f432511a9 100644
--- a/src/audio/src/src_hifi5.c
+++ b/src/audio/src/src_hifi5.c
@@ -339,11 +339,11 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	ae_int32x2 q;
 	ae_f32 *rp;
 	ae_f32 *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
 	int32_t *fir_end = &fir->fir_delay[fir->fir_delay_size];
@@ -351,9 +351,9 @@ void src_polyphase_stage_cir(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);
@@ -463,11 +463,11 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	ae_int16x4 d = AE_ZERO16();
 	ae_f32 *rp;
 	ae_f32 *wp;
-	int i;
+	size_t i;
 	int n;
-	int m;
-	int n_wrap_buf;
-	int n_min;
+	size_t m;
+	size_t n_wrap_buf;
+	size_t n_min;
 
 	struct src_state *fir = s->state;
 	const struct src_stage *cfg = s->stage;
@@ -476,9 +476,9 @@ void src_polyphase_stage_cir_s16(struct src_stage_prm *s)
 	const void *cp; /* Can be int32_t or int16_t */
 	const size_t out_size = fir->out_delay_size * sizeof(int32_t);
 	const int nch = s->nch;
-	const int nch_x_odm = cfg->odm * nch;
-	const int blk_in_words = nch * cfg->blk_in;
-	const int blk_out_words = nch * cfg->num_of_subfilters;
+	const size_t nch_x_odm = cfg->odm * nch;
+	const size_t blk_in_words = nch * cfg->blk_in;
+	const size_t blk_out_words = nch * cfg->num_of_subfilters;
 	const int sz = sizeof(int32_t);
 	const int n_sz = -sizeof(int32_t);
 	const int rewind_sz = sz * nch * (cfg->blk_in + (cfg->num_of_subfilters - 1) * cfg->idm);