Search found 10 matches

by frederic.bost
Tue Feb 26, 2019 10:13 am
Forum: ReSpeaker
Topic: Beamforming on Respeaker Core v2
Replies: 1
Views: 638

Beamforming on Respeaker Core v2

Hello, I'm using the latest Debian version on Respeaker Core v2. I'm recording with the sox tools over alsa (I removed pulse audio). I'm using the simple .asoundrc file: pcm.!default { type asym capture.pcm "mic" playback.pcm "speaker" } pcm.mic { type plug slave { pcm "hw:seeed8micvoicec,0" rate 16...
by frederic.bost
Sun Jan 06, 2019 8:14 pm
Forum: ReSpeaker
Topic: noise suppression with librespeaker in RespeakerCorev2
Replies: 45
Views: 7688

Re: noise suppression with librespeaker in RespeakerCorev2

Hello, I have some issues with with the noise reduction example using aloop. When I record after an "aplay" command, I have a big initial pop in my recording. For example: aplay phrase.wav sox -d -t wavpcm -c 1 -b 16 -r 16000 -e signed-integer --endian little record.wav trim 0 1 Then in my file reco...
by frederic.bost
Sat Dec 22, 2018 4:08 am
Forum: ReSpeaker
Topic: noise suppression with librespeaker in RespeakerCorev2
Replies: 45
Views: 7688

Re: noise suppression with librespeaker in RespeakerCorev2

This one works perfectly well
Thanks you very much
Great service
Fred
by frederic.bost
Fri Dec 21, 2018 3:56 am
Forum: ReSpeaker
Topic: noise suppression with librespeaker in RespeakerCorev2
Replies: 45
Views: 7688

Re: noise suppression with librespeaker in RespeakerCorev2

Good catch! That works great now. Thank you very much In the meantime, I also tried to play with the hybrid node but could not compile the line: hybrid.reset(HybridNode::Create(true,3,1,0,true,0,false)); The compilation returned a load error: $ g++ arecord_lv.cc -o arecord_lv -lrespeaker -lsndfile -...
by frederic.bost
Thu Dec 20, 2018 2:28 am
Forum: ReSpeaker
Topic: noise suppression with librespeaker in RespeakerCorev2
Replies: 45
Views: 7688

Re: noise suppression with librespeaker in RespeakerCorev2

Thanks That was very useful information which helped me a lot. So I went back to your example but still have the "underrun" issue. I just realized that it starts when i use aplay (or play) to play the recording from another SSH session. Here is the use case: - On a first SSH session, I run your exam...
by frederic.bost
Wed Dec 19, 2018 10:02 am
Forum: ReSpeaker
Topic: noise suppression with librespeaker in RespeakerCorev2
Replies: 45
Views: 7688

Re: noise suppression with librespeaker in RespeakerCorev2

Thanks for the reply. Using htop helps the monitoring indeed. I also tried to adapt the example as I don't need wakeup word detection but instead I look for a clean audio while capturing it live before sending it to a ASR API. So I linked the nodes: alsa -> hybrid(agc) -> hybrid(ns) -> hybrid (vad) ...
by frederic.bost
Wed Dec 19, 2018 7:31 am
Forum: ReSpeaker
Topic: noise suppression with librespeaker in RespeakerCorev2
Replies: 45
Views: 7688

Re: noise suppression with librespeaker in RespeakerCorev2

Hi, Thanks for this new aloop node. This is very useful. I got it to work with your example. But if you let it run for sometimes, ultimately you get a long list of "underrun" error like the following ones and it stops recording at that point. .... (145514ms)DEBUG -- Try to recovery from underrun [al...
by frederic.bost
Wed Oct 03, 2018 11:49 pm
Forum: ReSpeaker
Topic: Improve sound quality when recording
Replies: 1
Views: 738

Improve sound quality when recording

Hello, I'm trying to improve the sound quality of my recordings with the Respeaker Core v2. I'm using the Debian image 20180801. I plugged a Respeaker Mic Array v2 into the USB port to compare. I'm very impressed by the the recording I get using it: the noise cancellation is very good and the record...
by frederic.bost
Thu Aug 16, 2018 8:29 pm
Forum: ReSpeaker
Topic: Can't turn on leds rigth after boot
Replies: 4
Views: 864

Re: Can't turn on leds rigth after boot

Hi Bill,

Yes it is firmware version 2018.8.01

Thanks
Frederic
by frederic.bost
Wed Aug 15, 2018 9:22 pm
Forum: ReSpeaker
Topic: Can't turn on leds rigth after boot
Replies: 4
Views: 864

Can't turn on leds rigth after boot

Hello, I have this problem with leds on the respeaker core v2 (debian 9 iot sd image) that I can't solve. I created the small python script below based on your provided example. The very first time I run it after boot, it doesn't do anything. If I re-run it though, it works as well as all the follow...