First functioning ASRC with dante.

.gitignore

@@ -1,5 +1,5 @@
 dep/dante_package/dante_data/config/
 *.wav
 recordings/
-
+tmp/
 

asoundrc.danteasrc

@@ -0,0 +1,71 @@
+# ============================================================
+# DEP Dante RX -> ALSA Loopback is now done by DEP ALSA ASRC.
+# So: NO alsaloop needed anymore.
+#
+# Apps read from hw:Loopback,1,0 via dsnoop fanout,
+# then we split into 6 mono virtual devices.
+# ============================================================
+
+# ---- shared 6ch capture from Loopback with dsnoop fanout ----
+pcm.dante_asrc_shared6 {
+    type dsnoop
+    ipc_key 1048577
+    ipc_key_add_uid true
+    ipc_perm 0666
+
+    slave {
+        pcm "hw:Loopback,1,0"   # capture side of ALSA loopback
+        channels 6
+        rate 48000
+        format S16_LE
+
+        period_size 256
+        buffer_size 1024
+    }
+
+    hint { show on ; description "DEP RX (via ASRC) shared 6ch (loopback+dsnoop)" }
+}
+
+# ---- 6 mono devices (each maps one of the 6 channels) ----
+# (Using route explicitly makes the intent very clear.)
+pcm.dante_asrc_ch1 {
+    type route
+    slave { pcm "dante_asrc_shared6"; channels 6; }
+    ttable.0.0 1
+    hint { show on ; description "DEP RX CH1" }
+}
+
+pcm.dante_asrc_ch2 {
+    type route
+    slave { pcm "dante_asrc_shared6"; channels 6; }
+    ttable.0.1 1
+    hint { show on ; description "DEP RX CH2" }
+}
+
+pcm.dante_asrc_ch3 {
+    type route
+    slave { pcm "dante_asrc_shared6"; channels 6; }
+    ttable.0.2 1
+    hint { show on ; description "DEP RX CH3" }
+}
+
+pcm.dante_asrc_ch4 {
+    type route
+    slave { pcm "dante_asrc_shared6"; channels 6; }
+    ttable.0.3 1
+    hint { show on ; description "DEP RX CH4" }
+}
+
+pcm.dante_asrc_ch5 {
+    type route
+    slave { pcm "dante_asrc_shared6"; channels 6; }
+    ttable.0.4 1
+    hint { show on ; description "DEP RX CH5" }
+}
+
+pcm.dante_asrc_ch6 {
+    type route
+    slave { pcm "dante_asrc_shared6"; channels 6; }
+    ttable.0.5 1
+    hint { show on ; description "DEP RX CH6" }
+}

asoundrc.dsoundcard

@@ -1,45 +0,0 @@
-# DEP dsoundcard ALSA plugin configuration
-# Install with: sudo bash install_dsoundcard.sh
-
-# Needs this command running in background to loopback the dsoundcard to dsnoop
-# sudo alsaloop -C dsoundcard -c 6 -r 48000 -f S16_LE -P hw:Loopback,0,0
-
-pcm_type.dsoundcard {
-    lib "/opt/dep/dsoundcard.so"
-}
-
-pcm.dsoundcard {
-    type dsoundcard
-    hint { show on ; description "DEP Sound Card (raw 6ch)" }
-}
-
-# ---- shared 6ch capture from Loopback with dsnoop fanout ----
-pcm.dsoundcard_shared6 {
-    type dsnoop
-    ipc_key 1048577
-    ipc_key_add_uid true
-    ipc_perm 0666
-
-    slave {
-        pcm "hw:Loopback,1,0"
-        channels 6
-        rate 48000
-        format S16_LE
-    }
-
-    hint { show on ; description "DEP Sound Card (shared 6ch via loopback+dsnoop)" }
-}
-
-# ---- 6 mono devices (each maps one of the 6 channels) ----
-pcm.dsoundcard_ch1 { type plug; slave.pcm "dsoundcard_shared6"; slave.channels 6; ttable.0.0 1
-    hint { show on ; description "DEP Sound Card - CH1" } }
-pcm.dsoundcard_ch2 { type plug; slave.pcm "dsoundcard_shared6"; slave.channels 6; ttable.0.1 1
-    hint { show on ; description "DEP Sound Card - CH2" } }
-pcm.dsoundcard_ch3 { type plug; slave.pcm "dsoundcard_shared6"; slave.channels 6; ttable.0.2 1
-    hint { show on ; description "DEP Sound Card - CH3" } }
-pcm.dsoundcard_ch4 { type plug; slave.pcm "dsoundcard_shared6"; slave.channels 6; ttable.0.3 1
-    hint { show on ; description "DEP Sound Card - CH4" } }
-pcm.dsoundcard_ch5 { type plug; slave.pcm "dsoundcard_shared6"; slave.channels 6; ttable.0.4 1
-    hint { show on ; description "DEP Sound Card - CH5" } }
-pcm.dsoundcard_ch6 { type plug; slave.pcm "dsoundcard_shared6"; slave.channels 6; ttable.0.5 1
-    hint { show on ; description "DEP Sound Card - CH6" } }

dep/dante_package/dante_data/capability/config.json

@@ -305,6 +305,16 @@
 			"/proc/irq",
 			"/proc/sys",
 			"/proc/sysrq-trigger"
-		]
+		],
+		"resources":{
+			"devices":[
+				{
+					"allow": true,
+					"type": "c",
+					"major": 116,
+					"access": "rw"
+				}
+			]
+		}
 	}
 }

dep/dante_package/dante_data/capability/dante.json

@@ -49,7 +49,18 @@
 	},
 	"alsaAsrc":
 	{
-		"enableAlsaAsrc": false
+		"enableAlsaAsrc": true,
+		"deviceConfigurations": [
+			{
+			"deviceIdentifier": "hw:0,0",
+			"direction": "playback",
+			"bitDepth": 16,
+			"numOpenChannels": 6,
+			"alsaChannelRange": "0-5",
+			"danteChannelRange": "0-5",
+			"bufferSize": 48000
+			}
+		]
 	},
 	"product" :
 	{

dep_examples-1.2.2.1_aarch64_Linux/dep_examples/config_from_audinate_support/dante.json

@@ -62,7 +62,7 @@
                                "deviceIdentifier": "hw:0,0",
                                 "direction": "playback",
                                 "bitDepth": 16,
-                                "bufferSize": 48000
+                                "bufferSize": 480
                         }
                 ]
         },

test_dep_asrc_onedeviceperchannel.sh

@@ -0,0 +1,148 @@
+#!/bin/bash
+set -euo pipefail
+
+# Quiet locale warnings (optional)
+export LC_ALL="${LC_ALL:-C}"
+
+OUTPUT_DIR="./tmp"
+DURATION=10
+RATE=48000
+FORMAT="S16_LE"
+CHANNELS=1
+TIMESTAMP="$(date +%Y%m%d_%H%M%S)"
+
+mkdir -p "$OUTPUT_DIR"
+
+echo "======================================================"
+echo "DEP ASRC -> ALSA Loopback -> dsnoop Test (parallel)"
+echo "======================================================"
+echo "Recording one channel from each device IN PARALLEL:"
+echo "  dante_asrc_ch1 .. dante_asrc_ch6"
+echo "Duration: $DURATION seconds"
+echo "Output directory: $OUTPUT_DIR"
+echo "Timestamp: $TIMESTAMP"
+echo "======================================================"
+echo ""
+
+# Check if DEP is running
+if ! pgrep -f "dep_manager" >/dev/null; then
+  echo "ERROR: DEP is not running!"
+  echo "Start DEP first: cd /home/caster/dante_beacon && sudo bash dep.sh start"
+  exit 1
+fi
+
+device_exists() {
+  local dev="$1"
+  aplay -L 2>/dev/null | grep -qx "$dev" || arecord -L 2>/dev/null | grep -qx "$dev"
+}
+
+loopback_present() {
+  # Hardware device list is more reliable than arecord -L naming
+  arecord -l 2>/dev/null | grep -qi "Loopback" || aplay -l 2>/dev/null | grep -qi "Loopback"
+}
+
+# Warn (don’t hard-fail) if Loopback hardware isn't visible
+if ! loopback_present; then
+  echo "WARNING: ALSA Loopback hardware not found in 'arecord -l' / 'aplay -l'."
+  echo "If you expect Loopback, load it with:"
+  echo "  sudo modprobe snd-aloop"
+  echo ""
+fi
+
+# Ensure our virtual per-channel devices exist (from your asound.conf)
+missing=0
+for i in $(seq 1 6); do
+  if ! device_exists "dante_asrc_ch${i}"; then
+    echo "ERROR: dante_asrc_ch${i} not found (asound.conf not applied?)"
+    missing=1
+  fi
+done
+
+if [ "$missing" -ne 0 ]; then
+  echo ""
+  echo "Hint: list relevant devices with:"
+  echo "  arecord -L | grep -E 'dante_asrc_(shared6|ch[1-6])' -n"
+  echo ""
+  exit 1
+fi
+
+# Track background jobs
+declare -a DEVICES=()
+declare -a FILES=()
+declare -a PIDS=()
+
+cleanup() {
+  echo ""
+  echo "Stopping recordings..."
+  for pid in "${PIDS[@]:-}"; do
+    kill "$pid" 2>/dev/null || true
+  done
+  wait 2>/dev/null || true
+  echo "Done."
+}
+trap cleanup INT TERM
+
+echo "Launching recordings..."
+for i in $(seq 1 6); do
+  DEVICE="dante_asrc_ch${i}"
+  OUTPUT_FILE="${OUTPUT_DIR}/${DEVICE}_${TIMESTAMP}.wav"
+  LOG_FILE="${OUTPUT_DIR}/${DEVICE}_${TIMESTAMP}.log"
+
+  echo "  -> $DEVICE  =>  $OUTPUT_FILE"
+  arecord -D "$DEVICE" \
+    -c "$CHANNELS" -f "$FORMAT" -r "$RATE" -d "$DURATION" \
+    "$OUTPUT_FILE" >"$LOG_FILE" 2>&1 &
+
+  pid=$!
+  DEVICES+=("$DEVICE")
+  FILES+=("$OUTPUT_FILE")
+  PIDS+=("$pid")
+done
+
+echo ""
+echo "All recordings started. Waiting for completion..."
+echo ""
+
+SUCCESS_COUNT=0
+FAIL_COUNT=0
+
+for idx in "${!PIDS[@]}"; do
+  pid="${PIDS[$idx]}"
+  dev="${DEVICES[$idx]}"
+  out="${FILES[$idx]}"
+
+  if wait "$pid"; then
+    if [ -f "$out" ]; then
+      SUCCESS_COUNT=$((SUCCESS_COUNT + 1))
+      size="$(ls -lh "$out" | awk '{print $5}')"
+      echo "OK   $dev  -> $out  ($size)"
+    else
+      FAIL_COUNT=$((FAIL_COUNT + 1))
+      echo "FAIL $dev  -> file not created: $out"
+    fi
+  else
+    FAIL_COUNT=$((FAIL_COUNT + 1))
+    echo "FAIL $dev  (arecord exit != 0). See log: ${out%.wav}.log"
+  fi
+done
+
+echo ""
+echo "======================================================"
+echo "Summary: $SUCCESS_COUNT successful, $FAIL_COUNT failed"
+echo "======================================================"
+echo ""
+
+if command -v sox &>/dev/null; then
+  echo "Audio file info (sox stat):"
+  for out in "${FILES[@]}"; do
+    if [ -f "$out" ]; then
+      echo "---- $(basename "$out") ----"
+      sox "$out" -n stat 2>&1 | grep -E "Sample Rate|Channels|Duration|Length|Maximum amplitude|RMS"
+    fi
+  done
+  echo ""
+fi
+
+echo "To play a recording:"
+echo "  aplay ${OUTPUT_DIR}/dante_asrc_ch1_${TIMESTAMP}.wav"
+echo ""

test_dsoundcard_onedeviceperchannel.sh

@@ -1,139 +0,0 @@
-#!/bin/bash
-set -u
-
-# Record ALL channels at the same time (one device per channel)
-# Starts arecord for dsoundcard_ch1 .. dsoundcard_ch6 in parallel.
-
-OUTPUT_DIR="./recordings"
-DURATION=10  # seconds
-TIMESTAMP=$(date +%Y%m%d_%H%M%S)
-
-mkdir -p "$OUTPUT_DIR"
-
-echo "=========================================="
-echo "DEP dsoundcard ALSA Plugin Test (parallel)"
-echo "=========================================="
-echo "Recording one channel from each device IN PARALLEL:"
-echo "  dsoundcard_ch1 .. dsoundcard_ch6"
-echo "Duration: $DURATION seconds"
-echo "Output directory: $OUTPUT_DIR"
-echo "Timestamp: $TIMESTAMP"
-echo "=========================================="
-echo ""
-
-# Check if DEP is running
-if ! pgrep -f "dep_manager" > /dev/null; then
-    echo "ERROR: DEP is not running!"
-    echo "Start DEP first: cd /home/caster/dante_beacon && sudo bash dep.sh start"
-    exit 1
-fi
-
-# Check base dsoundcard plugin existence (list both playback+capture definitions)
-if ! (aplay -L 2>/dev/null | grep -q "^dsoundcard$" || arecord -L 2>/dev/null | grep -q "^dsoundcard$"); then
-    echo "ERROR: dsoundcard ALSA plugin not found!"
-    echo "Make sure dsoundcard.so is installed in /opt/dep/"
-    echo "And ~/.asoundrc is configured correctly"
-    exit 1
-fi
-
-device_exists() {
-  local dev="$1"
-  aplay -L 2>/dev/null | grep -q "^${dev}$" || arecord -L 2>/dev/null | grep -q "^${dev}$"
-}
-
-# Track background jobs
-declare -a DEVICES=()
-declare -a FILES=()
-declare -a PIDS=()
-
-# Kill all jobs on Ctrl-C / termination
-cleanup() {
-  echo ""
-  echo "Stopping recordings..."
-  for pid in "${PIDS[@]:-}"; do
-    kill "$pid" 2>/dev/null || true
-  done
-  wait 2>/dev/null || true
-  echo "Done."
-}
-trap cleanup INT TERM
-
-# Start all recordings
-echo "Launching recordings..."
-for i in $(seq 1 6); do
-    DEVICE="dsoundcard_ch${i}"
-    OUTPUT_FILE="${OUTPUT_DIR}/${DEVICE}_${TIMESTAMP}.wav"
-    LOG_FILE="${OUTPUT_DIR}/${DEVICE}_${TIMESTAMP}.log"
-
-    if ! device_exists "$DEVICE"; then
-        echo "WARNING: $DEVICE not found in ALSA device lists, skipping."
-        continue
-    fi
-
-    echo "  -> $DEVICE  =>  $OUTPUT_FILE"
-    # Run in background; capture stderr/stdout into a log for debugging
-    arecord -D "$DEVICE" \
-        -c 1 -f S16_LE -r 48000 -d "$DURATION" \
-        --buffer-size=4096 \
-        "$OUTPUT_FILE" >"$LOG_FILE" 2>&1 &
-
-    pid=$!
-    DEVICES+=("$DEVICE")
-    FILES+=("$OUTPUT_FILE")
-    PIDS+=("$pid")
-done
-
-if [ "${#PIDS[@]}" -eq 0 ]; then
-    echo "ERROR: No devices were started. Nothing to do."
-    exit 1
-fi
-
-echo ""
-echo "All recordings started. Waiting for completion..."
-echo ""
-
-# Wait for all and collect results
-SUCCESS_COUNT=0
-FAIL_COUNT=0
-
-for idx in "${!PIDS[@]}"; do
-    pid="${PIDS[$idx]}"
-    dev="${DEVICES[$idx]}"
-    out="${FILES[$idx]}"
-
-    if wait "$pid"; then
-        if [ -f "$out" ]; then
-            SUCCESS_COUNT=$((SUCCESS_COUNT + 1))
-            size=$(ls -lh "$out" | awk '{print $5}')
-            echo "OK   $dev  -> $out  ($size)"
-        else
-            FAIL_COUNT=$((FAIL_COUNT + 1))
-            echo "FAIL $dev  -> file not created: $out"
-        fi
-    else
-        FAIL_COUNT=$((FAIL_COUNT + 1))
-        echo "FAIL $dev  (arecord exit != 0). See log: ${out%.wav}.log"
-    fi
-done
-
-echo ""
-echo "=========================================="
-echo "Summary: $SUCCESS_COUNT successful, $FAIL_COUNT failed/skipped"
-echo "=========================================="
-echo ""
-
-# Optional: show brief file stats
-if command -v sox &> /dev/null; then
-  echo "Audio file info (sox stat):"
-  for out in "${FILES[@]}"; do
-    if [ -f "$out" ]; then
-      echo "---- $(basename "$out") ----"
-      sox "$out" -n stat 2>&1 | grep -E "Sample Rate|Channels|Duration|Length|Maximum amplitude|RMS"
-    fi
-  done
-  echo ""
-fi
-
-echo "To play a recording:"
-echo "  aplay ${OUTPUT_DIR}/dsoundcard_ch1_${TIMESTAMP}.wav"
-echo ""