https://free-codecs.com/download/winamp_speex_decoder.htm
Free Download Winamp Speex decoder 0.7.6: The Winamp Speex decoder enables you to play Speex (.spx) files using Winamp.
downloadwinampspeexdecoder
https://www.free-codecs.com/speex_voice_acm_codec_download.htm
Free & Fast Downloads for Speex Voice ACM Codec 1.0.1.1: download the latest versions of Speex Voice Codec
downloadspeexvoiceacmcodec