From 5f733af5ce444c9d2a32b16fdfd551a1df5ccec6 Mon Sep 17 00:00:00 2001 From: zhaohe Date: Sun, 2 Jul 2023 21:46:41 +0800 Subject: [PATCH] update --- demo/ac_sound_capture1/ac_sound_capture1.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/demo/ac_sound_capture1/ac_sound_capture1.cpp b/demo/ac_sound_capture1/ac_sound_capture1.cpp index b126aac..8367409 100644 --- a/demo/ac_sound_capture1/ac_sound_capture1.cpp +++ b/demo/ac_sound_capture1/ac_sound_capture1.cpp @@ -152,6 +152,10 @@ void wavWriteVoice(string filename, uint32_t sample_rate, uint16_t bits_per_samp void sound_capture_callback(int32_t* voicedata, uint32_t len) { printf("sound_capture_callback:%d\n", len); + for (size_t i = 0; i < len; i++) { + voicedata[i] = voicedata[i] - 420079616; //声望录音设备AC信号有一个直流偏移分量 + } + wavWriteVoice("record.wav", 96000, 32, 1, (char*)voicedata, len * sizeof(int32_t)); }