Search found 7 matches

by fastjack79
Wed Jul 17, 2019 10:38 pm
Forum: ReSpeaker
Topic: Respeaker Mic Array v2 playback quality and AEC
Replies: 0
Views: 798

Respeaker Mic Array v2 playback quality and AEC

Hi! The Respeaker audio playback capabilities are limited to 16Khz S24_3LE which is a very poor audio quality (though the AEC is excellent). Using the 48Khz firmware suffers from audio downgrade issues and the AEC is pretty bad. In an effort to play decent audio quality music and capture voice with ...
by fastjack79
Fri Jul 12, 2019 1:57 am
Forum: ReSpeaker
Topic: Audio Output Quality is 16 KHz on v2
Replies: 13
Views: 4211

Re: Audio Output Quality is 16 KHz on v2

Hey! Thank you for your feedback. I understand completely that it can be challenging and you guys have already made an awesome product. This audio quality issue is the only thing preventing it from being perfect. Instead of fixing the 48Khz 6 channels firmware audio downgrade issue, do you think you...
by fastjack79
Wed Jul 03, 2019 6:54 pm
Forum: ReSpeaker
Topic: Audio Output Quality is 16 KHz on v2
Replies: 13
Views: 4211

Re: Audio Output Quality is 16 KHz on v2

Hi! Using the 48k 6 channels firmware, the audio playback quality is degraded as soon as I start capturing. SEEED ReSpeaker 4 Mic Array (UAC1.0) at usb-3f980000.usb-1.1.3, full speed : USB Audio Playback: Status: Stop Interface 1 Altset 1 Format: S24_3LE Channels: 2 Endpoint: 1 OUT (ASYNC) Rates: 48...
by fastjack79
Tue Jul 02, 2019 6:58 pm
Forum: ReSpeaker
Topic: Audio Output Quality is 16 KHz on v2
Replies: 13
Views: 4211

Re: Audio Output Quality is 16 KHz on v2

Hi! Thank you for your feedback. After more investigation, I think I found the cause of the saturated audio playback with the 48Khz 6 channels firmware. The culprit seems to be the USB bandwidth. The saturated audio playback only happens when I capture the 6 channels mic input during playback. Eithe...
by fastjack79
Mon Jul 01, 2019 10:58 pm
Forum: ReSpeaker
Topic: Audio Output Quality is 16 KHz on v2
Replies: 13
Views: 4211

Re: Audio Output Quality is 16 KHz on v2

Hey! I tested the latest 48Khz firmwares and did not ear any changes. Here is the file I'm playing (loop-test.wav) and the record from the playback channel of the ReSpeaker (mic.wav) with the 48khz_6channels_firmware. Please download files here (too big for forum quota): https://wetransfer.com/downl...
by fastjack79
Sun Jun 30, 2019 6:57 pm
Forum: ReSpeaker
Topic: Audio Output Quality is 16 KHz on v2
Replies: 13
Views: 4211

Re: Audio Output Quality is 16 KHz on v2

Hey! I've tested the 48kHz firmwares (both 1 channel and 6 channels): - The 6 channels version just output saturated sounds (not usable). - The 1 channel version output 48kHz rate (clear audio) but with strange "sh" artifacts rendering poor audio quality. Is it something that can be improved? Are yo...
by fastjack79
Sun Jun 30, 2019 6:49 pm
Forum: ReSpeaker
Topic: 3.5mm audio port and USB firmware
Replies: 1
Views: 834

3.5mm audio port and USB firmware

Hi!

https://github.com/SeeedDocument/ReSpea ... s_i1o2.bin
I don't understand what this 3.5mm audio port and USB firmware is supposed to do. Can you give us more info? Is it to allow the 3.5mm audio port to be an input instead of an ouput?

Thanks.