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Added interoperability testes description using the Hasseb audio over Ethernet receiver.

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Andrea Bondavalli 2020-02-06 10:22:32 -08:00
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README.md
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@ -95,6 +95,29 @@ The demo performs the following operations:
* start playing a test sound on the configured ALSA source
* wait for the recording to complete and terminate ptp4l and the AES67 daemon
## Interoperability tests ##
To run interoperability tests using the [Hasseb audio over Ethernet receiver](http://hasseb.fi/shop2/index.php?route=product/product&product_id=62) follow these steps:
* open he daemon configuration file *daemon.conf* and change the following parameters:
* set the network interface name to your Ethernet card, e.g.: *"interface\_name": "eth0"*
* set the default sample rate to 48Khz: *"sample\_rate": 48000*
* verify that PulseAdio is not running. See [PulseAudio](#notes).
* install the ALSA RAVENNA/AES67 module with:
*sudo insmod 3rdparty/ravenna-alsa-lkm/driver/MergingRavennaALSA.ko*
* run the daemon using the new configuration file:
*aes67-daemon -c daemon.conf*
* open the Daemon WebUi *http://[address:8080]* and do the following:
* go to Config tab and verify that the sample rate is set to 48KHz
* go to Sources tab and add a new Source using the plus button, set Codec to L24 and press the Submit button
* go to Sinks tab and add a new Sink using the plus button, use the specified Source URL and press the Submit button
* edit the newly created Sink and copy the SDP file reported in SDP
* open the Hasseb WebUI and do the following:
* deselect the "PTP slave only" checkbox to enable PTP master
* select the "Add SDP file manually" checkbox and copy the previous Source SDP into the SDP field
* press the Submit button
* return to the daemon WebUI, click on the PTP tab and wait for the "PTP Status" to report "locked"
* open a shell on the Linux host and start the playback on the ravenna ALSA device. For example to playback a test sound use: *speaker-test -D plughw:RAVENNA -r 48000 -c 2 -t sine*
## Notes ##
<a name="notes"></a>