diff --git a/subprojects/gst-plugins-good/docs/gst_plugins_cache.json b/subprojects/gst-plugins-good/docs/gst_plugins_cache.json
index fbdcdf87ac..8e229c9c66 100644
--- a/subprojects/gst-plugins-good/docs/gst_plugins_cache.json
+++ b/subprojects/gst-plugins-good/docs/gst_plugins_cache.json
@@ -9572,7 +9572,7 @@
"long-name": "Matroska muxer",
"pad-templates": {
"audio_%%u": {
- "caps": "audio/mpeg:\n mpegversion: 1\n layer: [ 1, 3 ]\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/mpeg:\n mpegversion: { (int)2, (int)4 }\n stream-format: raw\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-ac3:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-eac3:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-dts:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-vorbis:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-flac:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-opus:\naudio/x-speex:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-raw:\n format: { U8, S16BE, S16LE, S24BE, S24LE, S32BE, S32LE, F32LE, F64LE }\n layout: interleaved\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-tta:\n width: { (int)8, (int)16, (int)24 }\n channels: { (int)1, (int)2 }\n rate: [ 8000, 96000 ]\naudio/x-pn-realaudio:\n raversion: { (int)1, (int)2, (int)8 }\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-wma:\n wmaversion: [ 1, 3 ]\n block_align: [ 0, 65535 ]\n bitrate: [ 0, 524288 ]\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-alaw:\n channels: { (int)1, (int)2 }\n rate: [ 8000, 192000 ]\naudio/x-mulaw:\n channels: { (int)1, (int)2 }\n rate: [ 8000, 192000 ]\naudio/x-adpcm:\n layout: dvi\n block_align: [ 64, 8192 ]\n channels: { (int)1, (int)2 }\n rate: [ 8000, 96000 ]\naudio/G722:\n channels: 1\n rate: 16000\naudio/x-adpcm:\n layout: g726\n channels: 1\n rate: 8000\n",
+ "caps": "audio/mpeg:\n mpegversion: 1\n layer: [ 1, 3 ]\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/mpeg:\n mpegversion: { (int)2, (int)4 }\n stream-format: raw\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-ac3:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-eac3:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-dts:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-vorbis:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-flac:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-opus:\n channels: [ 1, 8 ]\n rate: { (int)8000, (int)16000, (int)24000, (int)32000, (int)48000 }\naudio/x-speex:\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-raw:\n format: { U8, S16BE, S16LE, S24BE, S24LE, S32BE, S32LE, F32LE, F64LE }\n layout: interleaved\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-tta:\n width: { (int)8, (int)16, (int)24 }\n channels: { (int)1, (int)2 }\n rate: [ 8000, 96000 ]\naudio/x-pn-realaudio:\n raversion: { (int)1, (int)2, (int)8 }\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-wma:\n wmaversion: [ 1, 3 ]\n block_align: [ 0, 65535 ]\n bitrate: [ 0, 524288 ]\n channels: [ 1, 2147483647 ]\n rate: [ 1, 2147483647 ]\naudio/x-alaw:\n channels: { (int)1, (int)2 }\n rate: [ 8000, 192000 ]\naudio/x-mulaw:\n channels: { (int)1, (int)2 }\n rate: [ 8000, 192000 ]\naudio/x-adpcm:\n layout: dvi\n block_align: [ 64, 8192 ]\n channels: { (int)1, (int)2 }\n rate: [ 8000, 96000 ]\naudio/G722:\n channels: 1\n rate: 16000\naudio/x-adpcm:\n layout: g726\n channels: 1\n rate: 8000\n",
"direction": "sink",
"presence": "request"
},
diff --git a/subprojects/gst-plugins-good/gst/matroska/matroska-mux.c b/subprojects/gst-plugins-good/gst/matroska/matroska-mux.c
index ca90b6ac35..4e9b9ac881 100644
--- a/subprojects/gst-plugins-good/gst/matroska/matroska-mux.c
+++ b/subprojects/gst-plugins-good/gst/matroska/matroska-mux.c
@@ -180,7 +180,9 @@ static GstStaticPadTemplate audiosink_templ =
COMMON_AUDIO_CAPS "; "
"audio/x-flac, "
COMMON_AUDIO_CAPS "; "
- "audio/x-opus; "
+ "audio/x-opus, "
+ "channels = (int) [ 1, 8 ], "
+ "rate = (int) { 8000, 16000, 24000, 32000, 48000 }; "
"audio/x-speex, "
COMMON_AUDIO_CAPS "; "
"audio/x-raw, "