Recording on bridge stopping while playing audio on channel

[sitlate]

Hi all,

Problem faced
On a bridge (with bridge recording on) having a single channel, if I do file audio announcement using play ARI api on the channel, recording on the bridge is getting terminated.

Sequence of Operations
NOTE: everything is done using ARI APIs

• Created a bridge on asterisk.
• An Incoming call channel is answered (Media flowing both sides).
• Added the channel to the bridge and start recording on the bridge. Things are working fine till now.
• Now I play a wav file on the channel (using command: curl -s -X POST 'http://asterisk-uname:asterisk-pwd@:8020/ari/channels/10-1-242-121-1726581143.32/play?media=sound:/Recording/audio/Hindi_combo’). The announcement is audible at user.
• After about 4 seconds of this announcement playing, we get the event “RecordingFinished”. Everything else works fine from here on, but recording is stopped at this point.

Observations:

1. Two channels are created for recording rec-channel-id;1 and rec-channel-id;2
2. Received warning on asterisk console logs (after about 4 seconds of playing announcement): WARNING[2947367][C-00000044]: app.c:1941 __ast_play_and_record: No audio available on Recorder/rec-channel-id;1??
3. RecordingFinished is received for both the Recording channels created - rec-channel-id;1 and rec-channel-id;2

Versions and values
Asterisk version: Asterisk 18.11.1 built by root @ my-hostname on a x86_64 running Linux on 2024-02-26 06:00:44 UTC
Media file details:
$ soxi Hindi_combo.wav
Input File : ‘Hindi_combo.wav’
Channels : 1
Sample Rate : 8000
Precision : 16-bit
Duration : 00:00:14.62 = 116928 samples ~ 1096.2 CDDA sectors
File Size : 234k
Bit Rate : 128k
Sample Encoding: 16-bit Signed Integer PCM

Relevant logs:
Attached
asterisk-detailed-log.txt (357.1 KB)

Similar topics:

In ARI, Bidge Recording Stop on playing some audio to a signle channle

so call flow is like call comes we channel, then I put that channel into a bridge and then I play something to channel but when I do this the bridge call recording get stopped similar type of issue is below

Stop recording on add new channel to bridge

i get the incoming call, then create a bridge and add incoming channel to that bridge and started recording on that bridge, //AFTER ADD CHANNEL TO BRIDGE this.bridge.record({ format: “wav”, name: file }, function (err, recording) { log_errors(“start_call_recording”, err); recording.on(“RecordingFinished”, this.move_recording); }); move_recording = async (event, recording) => { console.log(‘move_recording event>>>’,event); let file = recording.name; //MOVE FILE CODE } But after this…

[jcolp]

The recorder in a bridge currently expects a consistent stream of audio. When you play audio to a channel in a bridge, it temporarily is suspended from the bridge and its audio no longer goes to the bridge resulting in the recorder leaving. You can file an issue[1] but there is no time frame or guarantee of resolution. A workaround would be to ensure there is always a source of audio in a bridge, such as temporarily adding another channel while doing playback.

[1] Issues · asterisk/asterisk · GitHub

[sitlate]

Thanks for the answer @jcolp. As a work-around, instead of playing on channel, we are now playing on bridge, and that seems to work fine as per our requirement.

[carybaby]

검토후 확인 바랍니다.

-----Original Message-----
From: "sitlate via Asterisk Community"notifications@asterisk.discoursemail.com
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Sent: 2024-09-20 (금) 14:32:49 (GMT+09:00)
Subject: Recording on bridge stopping while playing audio on channel [Asterisk Community] [Asterisk/Asterisk APIs]

	sitlate September 20

Thanks for the answer @jcolp. As a work-around, instead of playing on channel, we are now playing on bridge, and that seems to work fine as per our requirement.

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TSR20240920060856_D9DBKT3.zip (1.5 MB)